mirror of
https://github.com/krishnadey30/LeetCode-Questions-CompanyWise.git
synced 2025-12-28 05:34:42 +00:00
fb5f78b55e
## Description
- Add headers to all the CSV files
## Script used
```py
import csv
import os
# Set the path of the folder containing the CSV files
folder_path = "./LeetCode-Questions-CompanyWise"
headers = [
"ID",
"Title",
"Acceptance",
"Difficulty",
"Frequency",
"Leetcode Question Link",
]
# Loop through all the CSV files in the folder
for file_name in os.listdir(folder_path):
if file_name.endswith(".csv"):
# Read the CSV file into a list of rows
file_path = os.path.join(folder_path, file_name)
with open(file_path, "r") as f:
reader = csv.reader(f)
rows = list(reader)
has_headers = False
if len(rows) > 0 and rows[0] == headers:
has_headers = True
if not has_headers:
rows.insert(0, headers)
# Write the list of rows back to the CSV file
with open(file_path, "w", newline="") as f:
writer = csv.writer(f)
writer.writerows(rows)
```
49 KiB
49 KiB
| 1 | ID | Title | Acceptance | Difficulty | Frequency | Leetcode Question Link |
|---|---|---|---|---|---|---|
| 2 | 953 | Verifying an Alien Dictionary | 54.1% | Easy | 3.672929743430384 | https://leetcode.com/problems/verifying-an-alien-dictionary |
| 3 | 1249 | Minimum Remove to Make Valid Parentheses | 62.5% | Medium | 3.495670386899169 | https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses |
| 4 | 973 | K Closest Points to Origin | 63.8% | Medium | 3.3184110303679546 | https://leetcode.com/problems/k-closest-points-to-origin |
| 5 | 238 | Product of Array Except Self | 60.1% | Medium | 3.283232213950597 | https://leetcode.com/problems/product-of-array-except-self |
| 6 | 301 | Remove Invalid Parentheses | 43.3% | Hard | 3.2812706407880663 | https://leetcode.com/problems/remove-invalid-parentheses |
| 7 | 680 | Valid Palindrome II | 36.6% | Easy | 3.271459420826784 | https://leetcode.com/problems/valid-palindrome-ii |
| 8 | 560 | Subarray Sum Equals K | 43.9% | Medium | 3.2328873827137383 | https://leetcode.com/problems/subarray-sum-equals-k |
| 9 | 273 | Integer to English Words | 27.1% | Hard | 3.0556280261825237 | https://leetcode.com/problems/integer-to-english-words |
| 10 | 269 | Alien Dictionary | 33.3% | Hard | 2.878368669651309 | https://leetcode.com/problems/alien-dictionary |
| 11 | 415 | Add Strings | 47.5% | Easy | 2.7192844822779243 | https://leetcode.com/problems/add-strings |
| 12 | 158 | Read N Characters Given Read4 II - Call multiple times | 33.8% | Hard | 2.5420251257467097 | https://leetcode.com/problems/read-n-characters-given-read4-ii-call-multiple-times |
| 13 | 124 | Binary Tree Maximum Path Sum | 34.3% | Hard | 2.5244353385109877 | https://leetcode.com/problems/binary-tree-maximum-path-sum |
| 14 | 297 | Serialize and Deserialize Binary Tree | 47.5% | Hard | 2.4916605427137495 | https://leetcode.com/problems/serialize-and-deserialize-binary-tree |
| 15 | 199 | Binary Tree Right Side View | 54.1% | Medium | 2.4876454517631963 | https://leetcode.com/problems/binary-tree-right-side-view |
| 16 | 438 | Find All Anagrams in a String | 43.3% | Medium | 2.397524297872021 | https://leetcode.com/problems/find-all-anagrams-in-a-string |
| 17 | 211 | Add and Search Word - Data structure design | 38.1% | Medium | 2.3759545223677563 | https://leetcode.com/problems/add-and-search-word-data-structure-design |
| 18 | 278 | First Bad Version | 35.7% | Easy | 2.1986951658365417 | https://leetcode.com/problems/first-bad-version |
| 19 | 523 | Continuous Subarray Sum | 24.6% | Medium | 2.166716009367632 | https://leetcode.com/problems/continuous-subarray-sum |
| 20 | 23 | Merge k Sorted Lists | 40.2% | Hard | 2.1408121493810057 | https://leetcode.com/problems/merge-k-sorted-lists |
| 21 | 125 | Valid Palindrome | 36.7% | Easy | 2.10463501498305 | https://leetcode.com/problems/valid-palindrome |
| 22 | 426 | Convert Binary Search Tree to Sorted Doubly Linked List | 59.1% | Medium | 2.0376808407812033 | https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list |
| 23 | 173 | Binary Search Tree Iterator | 56.6% | Medium | 2.0078306132610235 | https://leetcode.com/problems/binary-search-tree-iterator |
| 24 | 67 | Add Binary | 45.2% | Easy | 2.0006884437372294 | https://leetcode.com/problems/add-binary |
| 25 | 282 | Expression Add Operators | 35.5% | Hard | 1.9743024644234966 | https://leetcode.com/problems/expression-add-operators |
| 26 | 340 | Longest Substring with At Most K Distinct Characters | 44.1% | Hard | 1.9268050203671723 | https://leetcode.com/problems/longest-substring-with-at-most-k-distinct-characters |
| 27 | 215 | Kth Largest Element in an Array | 55.4% | Medium | 1.9162899009936014 | https://leetcode.com/problems/kth-largest-element-in-an-array |
| 28 | 543 | Diameter of Binary Tree | 48.4% | Easy | 1.9159403034429063 | https://leetcode.com/problems/diameter-of-binary-tree |
| 29 | 636 | Exclusive Time of Functions | 51.9% | Medium | 1.9144673183856245 | https://leetcode.com/problems/exclusive-time-of-functions |
| 30 | 65 | Valid Number | 15.3% | Hard | 1.8249221481329196 | https://leetcode.com/problems/valid-number |
| 31 | 986 | Interval List Intersections | 67.3% | Medium | 1.7606773319042146 | https://leetcode.com/problems/interval-list-intersections |
| 32 | 76 | Minimum Window Substring | 34.6% | Hard | 1.7452444146734871 | https://leetcode.com/problems/minimum-window-substring |
| 33 | 1428 | Leftmost Column with at Least a One | 46.8% | Medium | 1.7410939458816417 | https://leetcode.com/problems/leftmost-column-with-at-least-a-one |
| 34 | 398 | Random Pick Index | 56.0% | Medium | 1.739251464947996 | https://leetcode.com/problems/random-pick-index |
| 35 | 938 | Range Sum of BST | 81.3% | Easy | 1.7183278125336303 | https://leetcode.com/problems/range-sum-of-bst |
| 36 | 311 | Sparse Matrix Multiplication | 61.9% | Medium | 1.6183865180101145 | https://leetcode.com/problems/sparse-matrix-multiplication |
| 37 | 270 | Closest Binary Search Tree Value | 48.5% | Easy | 1.586376093728572 | https://leetcode.com/problems/closest-binary-search-tree-value |
| 38 | 689 | Maximum Sum of 3 Non-Overlapping Subarrays | 46.3% | Hard | 1.5757403799369294 | https://leetcode.com/problems/maximum-sum-of-3-non-overlapping-subarrays |
| 39 | 56 | Merge Intervals | 39.3% | Medium | 1.5421333498120642 | https://leetcode.com/problems/merge-intervals |
| 40 | 31 | Next Permutation | 32.6% | Medium | 1.4952605643210366 | https://leetcode.com/problems/next-permutation |
| 41 | 139 | Word Break | 40.1% | Medium | 1.4806418655886273 | https://leetcode.com/problems/word-break |
| 42 | 987 | Vertical Order Traversal of a Binary Tree | 36.6% | Medium | 1.4752728801959076 | https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree |
| 43 | 133 | Clone Graph | 34.8% | Medium | 1.4511392078839955 | https://leetcode.com/problems/clone-graph |
| 44 | 34 | Find First and Last Position of Element in Sorted Array | 36.2% | Medium | 1.4396247937745372 | https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array |
| 45 | 71 | Simplify Path | 32.6% | Medium | 1.4382022207219085 | https://leetcode.com/problems/simplify-path |
| 46 | 88 | Merge Sorted Array | 39.4% | Easy | 1.4313521714101423 | https://leetcode.com/problems/merge-sorted-array |
| 47 | 896 | Monotonic Array | 57.9% | Easy | 1.4253001116063013 | https://leetcode.com/problems/monotonic-array |
| 48 | 785 | Is Graph Bipartite? | 47.5% | Medium | 1.4051826456400964 | https://leetcode.com/problems/is-graph-bipartite |
| 49 | 721 | Accounts Merge | 48.8% | Medium | 1.3810374792408489 | https://leetcode.com/problems/accounts-merge |
| 50 | 349 | Intersection of Two Arrays | 62.5% | Easy | 1.3262693184793644 | https://leetcode.com/problems/intersection-of-two-arrays |
| 51 | 29 | Divide Two Integers | 16.4% | Medium | 1.3132705131849702 | https://leetcode.com/problems/divide-two-integers |
| 52 | 249 | Group Shifted Strings | 55.1% | Medium | 1.2602327507507307 | https://leetcode.com/problems/group-shifted-strings |
| 53 | 339 | Nested List Weight Sum | 74.0% | Easy | 1.2338014599366327 | https://leetcode.com/problems/nested-list-weight-sum |
| 54 | 314 | Binary Tree Vertical Order Traversal | 45.3% | Medium | 1.2247904974214212 | https://leetcode.com/problems/binary-tree-vertical-order-traversal |
| 55 | 1060 | Missing Element in Sorted Array | 54.5% | Medium | 1.2015522948374056 | https://leetcode.com/problems/missing-element-in-sorted-array |
| 56 | 42 | Trapping Rain Water | 48.9% | Hard | 1.195895799454225 | https://leetcode.com/problems/trapping-rain-water |
| 57 | 767 | Reorganize String | 48.7% | Medium | 1.182457868492389 | https://leetcode.com/problems/reorganize-string |
| 58 | 708 | Insert into a Sorted Circular Linked List | 31.6% | Medium | 1.172343257989845 | https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list |
| 59 | 958 | Check Completeness of a Binary Tree | 52.1% | Medium | 1.1632195643177228 | https://leetcode.com/problems/check-completeness-of-a-binary-tree |
| 60 | 1197 | Minimum Knight Moves | 36.1% | Medium | 1.1562032194143523 | https://leetcode.com/problems/minimum-knight-moves |
| 61 | 236 | Lowest Common Ancestor of a Binary Tree | 45.7% | Medium | 1.0938757493214366 | https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree |
| 62 | 528 | Random Pick with Weight | 43.9% | Medium | 1.0906112458600137 | https://leetcode.com/problems/random-pick-with-weight |
| 63 | 253 | Meeting Rooms II | 45.7% | Medium | 1.0814304382893596 | https://leetcode.com/problems/meeting-rooms-ii |
| 64 | 380 | Insert Delete GetRandom O(1) | 47.5% | Medium | 1.0764926440989369 | https://leetcode.com/problems/insert-delete-getrandom-o1 |
| 65 | 670 | Maximum Swap | 43.6% | Medium | 1.0650556866604306 | https://leetcode.com/problems/maximum-swap |
| 66 | 33 | Search in Rotated Sorted Array | 34.5% | Medium | 1.0520357838367607 | https://leetcode.com/problems/search-in-rotated-sorted-array |
| 67 | 766 | Toeplitz Matrix | 65.1% | Easy | 0.9808292530117262 | https://leetcode.com/problems/toeplitz-matrix |
| 68 | 146 | LRU Cache | 33.2% | Medium | 0.980036431607266 | https://leetcode.com/problems/lru-cache |
| 69 | 825 | Friends Of Appropriate Ages | 42.7% | Medium | 0.9548282098825729 | https://leetcode.com/problems/friends-of-appropriate-ages |
| 70 | 824 | Goat Latin | 63.4% | Easy | 0.949028440149358 | https://leetcode.com/problems/goat-latin |
| 71 | 498 | Diagonal Traverse | 48.2% | Medium | 0.9448109538225702 | https://leetcode.com/problems/diagonal-traverse |
| 72 | 304 | Range Sum Query 2D - Immutable | 38.6% | Medium | 0.9339964539142727 | https://leetcode.com/problems/range-sum-query-2d-immutable |
| 73 | 227 | Basic Calculator II | 36.9% | Medium | 0.9201510193402352 | https://leetcode.com/problems/basic-calculator-ii |
| 74 | 286 | Walls and Gates | 54.5% | Medium | 0.9182875611040503 | https://leetcode.com/problems/walls-and-gates |
| 75 | 98 | Validate Binary Search Tree | 27.8% | Medium | 0.9132791260666902 | https://leetcode.com/problems/validate-binary-search-tree |
| 76 | 138 | Copy List with Random Pointer | 36.4% | Medium | 0.9130873453663271 | https://leetcode.com/problems/copy-list-with-random-pointer |
| 77 | 43 | Multiply Strings | 33.9% | Medium | 0.8901363256144234 | https://leetcode.com/problems/multiply-strings |
| 78 | 616 | Add Bold Tag in String | 43.1% | Medium | 0.8724465334959766 | https://leetcode.com/problems/add-bold-tag-in-string |
| 79 | 921 | Minimum Add to Make Parentheses Valid | 73.7% | Medium | 0.869631484642747 | https://leetcode.com/problems/minimum-add-to-make-parentheses-valid |
| 80 | 1123 | Lowest Common Ancestor of Deepest Leaves | 66.8% | Medium | 0.8548064280870838 | https://leetcode.com/problems/lowest-common-ancestor-of-deepest-leaves |
| 81 | 1026 | Maximum Difference Between Node and Ancestor | 66.0% | Medium | 0.8326883967450455 | https://leetcode.com/problems/maximum-difference-between-node-and-ancestor |
| 82 | 621 | Task Scheduler | 50.1% | Medium | 0.830630807901992 | https://leetcode.com/problems/task-scheduler |
| 83 | 200 | Number of Islands | 46.8% | Medium | 0.8225189427311105 | https://leetcode.com/problems/number-of-islands |
| 84 | 1216 | Valid Palindrome III | 47.8% | Hard | 0.8187244879431477 | https://leetcode.com/problems/valid-palindrome-iii |
| 85 | 863 | All Nodes Distance K in Binary Tree | 55.4% | Medium | 0.8044965676039516 | https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree |
| 86 | 109 | Convert Sorted List to Binary Search Tree | 47.7% | Medium | 0.778490500448878 | https://leetcode.com/problems/convert-sorted-list-to-binary-search-tree |
| 87 | 317 | Shortest Distance from All Buildings | 41.4% | Hard | 0.7748252115742125 | https://leetcode.com/problems/shortest-distance-from-all-buildings |
| 88 | 419 | Battleships in a Board | 70.0% | Medium | 0.734450986701181 | https://leetcode.com/problems/battleships-in-a-board |
| 89 | 246 | Strobogrammatic Number | 45.0% | Easy | 0.6935606599952345 | https://leetcode.com/problems/strobogrammatic-number |
| 90 | 247 | Strobogrammatic Number II | 47.6% | Medium | 0.6864254931685857 | https://leetcode.com/problems/strobogrammatic-number-ii |
| 91 | 143 | Reorder List | 37.1% | Medium | 0.6644936178538985 | https://leetcode.com/problems/reorder-list |
| 92 | 658 | Find K Closest Elements | 40.9% | Medium | 0.6638270433029843 | https://leetcode.com/problems/find-k-closest-elements |
| 93 | 157 | Read N Characters Given Read4 | 34.2% | Easy | 0.6437780586849429 | https://leetcode.com/problems/read-n-characters-given-read4 |
| 94 | 839 | Similar String Groups | 38.6% | Hard | 0.6425949013971141 | https://leetcode.com/problems/similar-string-groups |
| 95 | 432 | All O`one Data Structure | 32.4% | Hard | 0.6277764653542548 | https://leetcode.com/problems/all-oone-data-structure |
| 96 | 480 | Sliding Window Median | 37.2% | Hard | 0.6193030606504982 | https://leetcode.com/problems/sliding-window-median |
| 97 | 162 | Find Peak Element | 43.3% | Medium | 0.6111183749147795 | https://leetcode.com/problems/find-peak-element |
| 98 | 10 | Regular Expression Matching | 26.8% | Hard | 0.5850984373117593 | https://leetcode.com/problems/regular-expression-matching |
| 99 | 463 | Island Perimeter | 65.7% | Easy | 0.5846665375658754 | https://leetcode.com/problems/island-perimeter |
| 100 | 1004 | Max Consecutive Ones III | 59.1% | Medium | 0.5826782301065547 | https://leetcode.com/problems/max-consecutive-ones-iii |
| 101 | 126 | Word Ladder II | 22.1% | Hard | 0.5693600008081126 | https://leetcode.com/problems/word-ladder-ii |
| 102 | 277 | Find the Celebrity | 41.8% | Medium | 0.5616591289700842 | https://leetcode.com/problems/find-the-celebrity |
| 103 | 452 | Minimum Number of Arrows to Burst Balloons | 49.6% | Medium | 0.5584397574369148 | https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons |
| 104 | 22 | Generate Parentheses | 62.7% | Medium | 0.553101106914229 | https://leetcode.com/problems/generate-parentheses |
| 105 | 494 | Target Sum | 46.3% | Medium | 0.537605099367259 | https://leetcode.com/problems/target-sum |
| 106 | 865 | Smallest Subtree with all the Deepest Nodes | 60.8% | Medium | 0.5360733767570822 | https://leetcode.com/problems/smallest-subtree-with-all-the-deepest-nodes |
| 107 | 647 | Palindromic Substrings | 60.6% | Medium | 0.5122882232745292 | https://leetcode.com/problems/palindromic-substrings |
| 108 | 378 | Kth Smallest Element in a Sorted Matrix | 54.3% | Medium | 0.5057807371350349 | https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix |
| 109 | 1094 | Car Pooling | 56.7% | Medium | 0.5042466526679481 | https://leetcode.com/problems/car-pooling |
| 110 | 15 | 3Sum | 26.8% | Medium | 0.4923847546019265 | https://leetcode.com/problems/3sum |
| 111 | 1027 | Longest Arithmetic Sequence | 53.4% | Medium | 0.48432368302048406 | https://leetcode.com/problems/longest-arithmetic-sequence |
| 112 | 348 | Design Tic-Tac-Toe | 54.3% | Medium | 0.47793775692115553 | https://leetcode.com/problems/design-tic-tac-toe |
| 113 | 140 | Word Break II | 32.6% | Hard | 0.4761853504191846 | https://leetcode.com/problems/word-break-ii |
| 114 | 93 | Restore IP Addresses | 35.6% | Medium | 0.47237108409270245 | https://leetcode.com/problems/restore-ip-addresses |
| 115 | 772 | Basic Calculator III | 41.3% | Hard | 0.462623521948113 | https://leetcode.com/problems/basic-calculator-iii |
| 116 | 540 | Single Element in a Sorted Array | 57.9% | Medium | 0.46172503314573243 | https://leetcode.com/problems/single-element-in-a-sorted-array |
| 117 | 1213 | Intersection of Three Sorted Arrays | 78.9% | Easy | 0.45778473187961194 | https://leetcode.com/problems/intersection-of-three-sorted-arrays |
| 118 | 1269 | Number of Ways to Stay in the Same Place After Some Steps | 43.2% | Hard | 0.4557571315683002 | https://leetcode.com/problems/number-of-ways-to-stay-in-the-same-place-after-some-steps |
| 119 | 329 | Longest Increasing Path in a Matrix | 43.4% | Hard | 0.4510648782793416 | https://leetcode.com/problems/longest-increasing-path-in-a-matrix |
| 120 | 529 | Minesweeper | 59.1% | Medium | 0.4410244101446512 | https://leetcode.com/problems/minesweeper |
| 121 | 91 | Decode Ways | 24.7% | Medium | 0.43194955048493294 | https://leetcode.com/problems/decode-ways |
| 122 | 490 | The Maze | 51.4% | Medium | 0.4296321995074925 | https://leetcode.com/problems/the-maze |
| 123 | 1 | Two Sum | 45.6% | Easy | 0.42776342069905027 | https://leetcode.com/problems/two-sum |
| 124 | 50 | Pow(x;n) | 30.3% | Medium | 0.4274653596092084 | https://leetcode.com/problems/powx-n |
| 125 | 224 | Basic Calculator | 36.8% | Hard | 0.42504615330727086 | https://leetcode.com/problems/basic-calculator |
| 126 | 1233 | Remove Sub-Folders from the Filesystem | 59.5% | Medium | 0.4243747624654565 | https://leetcode.com/problems/remove-sub-folders-from-the-filesystem |
| 127 | 350 | Intersection of Two Arrays II | 51.4% | Easy | 0.42028659580670896 | https://leetcode.com/problems/intersection-of-two-arrays-ii |
| 128 | 257 | Binary Tree Paths | 51.5% | Easy | 0.4154891624073732 | https://leetcode.com/problems/binary-tree-paths |
| 129 | 8 | String to Integer (atoi) | 15.4% | Medium | 0.407141925712164 | https://leetcode.com/problems/string-to-integer-atoi |
| 130 | 163 | Missing Ranges | 24.3% | Medium | 0.4067714440222198 | https://leetcode.com/problems/missing-ranges |
| 131 | 568 | Maximum Vacation Days | 40.8% | Hard | 0.4036217896138752 | https://leetcode.com/problems/maximum-vacation-days |
| 132 | 364 | Nested List Weight Sum II | 62.8% | Medium | 0.3968580334554196 | https://leetcode.com/problems/nested-list-weight-sum-ii |
| 133 | 791 | Custom Sort String | 65.7% | Medium | 0.3900345348815187 | https://leetcode.com/problems/custom-sort-string |
| 134 | 939 | Minimum Area Rectangle | 51.8% | Medium | 0.3885265923801231 | https://leetcode.com/problems/minimum-area-rectangle |
| 135 | 678 | Valid Parenthesis String | 31.0% | Medium | 0.38202577837362234 | https://leetcode.com/problems/valid-parenthesis-string |
| 136 | 934 | Shortest Bridge | 48.2% | Medium | 0.3715318913226816 | https://leetcode.com/problems/shortest-bridge |
| 137 | 121 | Best Time to Buy and Sell Stock | 50.5% | Easy | 0.3695140839999301 | https://leetcode.com/problems/best-time-to-buy-and-sell-stock |
| 138 | 114 | Flatten Binary Tree to Linked List | 49.3% | Medium | 0.3666595336863693 | https://leetcode.com/problems/flatten-binary-tree-to-linked-list |
| 139 | 408 | Valid Word Abbreviation | 30.6% | Easy | 0.36101334553733055 | https://leetcode.com/problems/valid-word-abbreviation |
| 140 | 127 | Word Ladder | 29.6% | Medium | 0.35996786713577755 | https://leetcode.com/problems/word-ladder |
| 141 | 855 | Exam Room | 43.1% | Medium | 0.34442921752179523 | https://leetcode.com/problems/exam-room |
| 142 | 341 | Flatten Nested List Iterator | 52.9% | Medium | 0.3426517489923298 | https://leetcode.com/problems/flatten-nested-list-iterator |
| 143 | 78 | Subsets | 62.0% | Medium | 0.34168366615845647 | https://leetcode.com/problems/subsets |
| 144 | 963 | Minimum Area Rectangle II | 50.9% | Medium | 0.3416302106614813 | https://leetcode.com/problems/minimum-area-rectangle-ii |
| 145 | 400 | Nth Digit | 31.7% | Medium | 0.33647223662121295 | https://leetcode.com/problems/nth-digit |
| 146 | 3 | Longest Substring Without Repeating Characters | 30.4% | Medium | 0.33543751206600453 | https://leetcode.com/problems/longest-substring-without-repeating-characters |
| 147 | 333 | Largest BST Subtree | 35.8% | Medium | 0.32931497055013925 | https://leetcode.com/problems/largest-bst-subtree |
| 148 | 827 | Making A Large Island | 45.7% | Hard | 0.32879599515977564 | https://leetcode.com/problems/making-a-large-island |
| 149 | 695 | Max Area of Island | 62.7% | Medium | 0.32657434158263016 | https://leetcode.com/problems/max-area-of-island |
| 150 | 266 | Palindrome Permutation | 61.9% | Easy | 0.32365154819215153 | https://leetcode.com/problems/palindrome-permutation |
| 151 | 381 | Insert Delete GetRandom O(1) - Duplicates allowed | 34.1% | Hard | 0.32306557634109756 | https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed |
| 152 | 844 | Backspace String Compare | 46.4% | Easy | 0.32306557634109756 | https://leetcode.com/problems/backspace-string-compare |
| 153 | 692 | Top K Frequent Words | 51.8% | Medium | 0.31457116512531025 | https://leetcode.com/problems/top-k-frequent-words |
| 154 | 549 | Binary Tree Longest Consecutive Sequence II | 47.0% | Medium | 0.31383478526224007 | https://leetcode.com/problems/binary-tree-longest-consecutive-sequence-ii |
| 155 | 1242 | Web Crawler Multithreaded | 45.9% | Medium | 0.30961714931803663 | https://leetcode.com/problems/web-crawler-multithreaded |
| 156 | 207 | Course Schedule | 43.1% | Medium | 0.3071480068014249 | https://leetcode.com/problems/course-schedule |
| 157 | 536 | Construct Binary Tree from String | 48.3% | Medium | 0.303629619668917 | https://leetcode.com/problems/construct-binary-tree-from-string |
| 158 | 1245 | Tree Diameter | 60.1% | Medium | 0.29849298855599654 | https://leetcode.com/problems/tree-diameter |
| 159 | 332 | Reconstruct Itinerary | 36.7% | Medium | 0.29733066556761284 | https://leetcode.com/problems/reconstruct-itinerary |
| 160 | 936 | Stamping The Sequence | 42.8% | Hard | 0.2972515234679316 | https://leetcode.com/problems/stamping-the-sequence |
| 161 | 161 | One Edit Distance | 32.3% | Medium | 0.28698931177288023 | https://leetcode.com/problems/one-edit-distance |
| 162 | 875 | Koko Eating Bananas | 52.1% | Medium | 0.28493103907989104 | https://leetcode.com/problems/koko-eating-bananas |
| 163 | 32 | Longest Valid Parentheses | 28.4% | Hard | 0.28481756175632106 | https://leetcode.com/problems/longest-valid-parentheses |
| 164 | 1424 | Diagonal Traverse II | 42.4% | Medium | 0.28406186115878557 | https://leetcode.com/problems/diagonal-traverse-ii |
| 165 | 166 | Fraction to Recurring Decimal | 21.6% | Medium | 0.2819404298841057 | https://leetcode.com/problems/fraction-to-recurring-decimal |
| 166 | 548 | Split Array with Equal Sum | 46.4% | Medium | 0.2761315220005779 | https://leetcode.com/problems/split-array-with-equal-sum |
| 167 | 92 | Reverse Linked List II | 38.8% | Medium | 0.27542168553536034 | https://leetcode.com/problems/reverse-linked-list-ii |
| 168 | 977 | Squares of a Sorted Array | 72.1% | Easy | 0.2744368457017603 | https://leetcode.com/problems/squares-of-a-sorted-array |
| 169 | 347 | Top K Frequent Elements | 61.2% | Medium | 0.272004511442638 | https://leetcode.com/problems/top-k-frequent-elements |
| 170 | 609 | Find Duplicate File in System | 59.5% | Medium | 0.25388017696233983 | https://leetcode.com/problems/find-duplicate-file-in-system |
| 171 | 111 | Minimum Depth of Binary Tree | 37.4% | Easy | 0.24735812724870243 | https://leetcode.com/problems/minimum-depth-of-binary-tree |
| 172 | 622 | Design Circular Queue | 43.8% | Medium | 0.2454927324105261 | https://leetcode.com/problems/design-circular-queue |
| 173 | 1032 | Stream of Characters | 48.3% | Hard | 0.24287879543594265 | https://leetcode.com/problems/stream-of-characters |
| 174 | 240 | Search a 2D Matrix II | 43.2% | Medium | 0.24218097481422138 | https://leetcode.com/problems/search-a-2d-matrix-ii |
| 175 | 57 | Insert Interval | 33.5% | Hard | 0.23697938397356041 | https://leetcode.com/problems/insert-interval |
| 176 | 416 | Partition Equal Subset Sum | 43.7% | Medium | 0.23420537108328685 | https://leetcode.com/problems/partition-equal-subset-sum |
| 177 | 742 | Closest Leaf in a Binary Tree | 43.6% | Medium | 0.23361485118150516 | https://leetcode.com/problems/closest-leaf-in-a-binary-tree |
| 178 | 129 | Sum Root to Leaf Numbers | 49.1% | Medium | 0.2308064240597789 | https://leetcode.com/problems/sum-root-to-leaf-numbers |
| 179 | 334 | Increasing Triplet Subsequence | 40.0% | Medium | 0.23032129090902695 | https://leetcode.com/problems/increasing-triplet-subsequence |
| 180 | 73 | Set Matrix Zeroes | 43.1% | Medium | 0.22588530142358976 | https://leetcode.com/problems/set-matrix-zeroes |
| 181 | 428 | Serialize and Deserialize N-ary Tree | 59.4% | Hard | 0.22567199766756846 | https://leetcode.com/problems/serialize-and-deserialize-n-ary-tree |
| 182 | 2 | Add Two Numbers | 33.9% | Medium | 0.21782267725557036 | https://leetcode.com/problems/add-two-numbers |
| 183 | 39 | Combination Sum | 56.1% | Medium | 0.21687574090953024 | https://leetcode.com/problems/combination-sum |
| 184 | 515 | Find Largest Value in Each Tree Row | 61.1% | Medium | 0.21199732494007123 | https://leetcode.com/problems/find-largest-value-in-each-tree-row |
| 185 | 283 | Move Zeroes | 57.8% | Easy | 0.21030412725932263 | https://leetcode.com/problems/move-zeroes |
| 186 | 117 | Populating Next Right Pointers in Each Node II | 39.1% | Medium | 0.20860539286818253 | https://leetcode.com/problems/populating-next-right-pointers-in-each-node-ii |
| 187 | 20 | Valid Parentheses | 39.0% | Easy | 0.20727582199587388 | https://leetcode.com/problems/valid-parentheses |
| 188 | 983 | Minimum Cost For Tickets | 60.5% | Medium | 0.2028261131996316 | https://leetcode.com/problems/minimum-cost-for-tickets |
| 189 | 19 | Remove Nth Node From End of List | 35.2% | Medium | 0.20099276793124013 | https://leetcode.com/problems/remove-nth-node-from-end-of-list |
| 190 | 352 | Data Stream as Disjoint Intervals | 47.3% | Hard | 0.1980128865886302 | https://leetcode.com/problems/data-stream-as-disjoint-intervals |
| 191 | 637 | Average of Levels in Binary Tree | 63.1% | Easy | 0.1972664368553499 | https://leetcode.com/problems/average-of-levels-in-binary-tree |
| 192 | 214 | Shortest Palindrome | 29.8% | Hard | 0.19671029424605424 | https://leetcode.com/problems/shortest-palindrome |
| 193 | 53 | Maximum Subarray | 46.5% | Easy | 0.19634219774637035 | https://leetcode.com/problems/maximum-subarray |
| 194 | 272 | Closest Binary Search Tree Value II | 50.5% | Hard | 0.1920777317393193 | https://leetcode.com/problems/closest-binary-search-tree-value-ii |
| 195 | 75 | Sort Colors | 47.3% | Medium | 0.19182745017125022 | https://leetcode.com/problems/sort-colors |
| 196 | 358 | Rearrange String k Distance Apart | 34.9% | Hard | 0.19004360288786493 | https://leetcode.com/problems/rearrange-string-k-distance-apart |
| 197 | 5 | Longest Palindromic Substring | 29.5% | Medium | 0.18726302339313927 | https://leetcode.com/problems/longest-palindromic-substring |
| 198 | 969 | Pancake Sorting | 67.5% | Medium | 0.18336922582639836 | https://leetcode.com/problems/pancake-sorting |
| 199 | 1091 | Shortest Path in Binary Matrix | 38.2% | Medium | 0.18312509239363786 | https://leetcode.com/problems/shortest-path-in-binary-matrix |
| 200 | 323 | Number of Connected Components in an Undirected Graph | 56.0% | Medium | 0.18178978331691914 | https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph |
| 201 | 759 | Employee Free Time | 66.3% | Hard | 0.1816986978513639 | https://leetcode.com/problems/employee-free-time |
| 202 | 388 | Longest Absolute File Path | 41.8% | Medium | 0.18128582392042256 | https://leetcode.com/problems/longest-absolute-file-path |
| 203 | 40 | Combination Sum II | 48.2% | Medium | 0.1780616138489939 | https://leetcode.com/problems/combination-sum-ii |
| 204 | 336 | Palindrome Pairs | 33.7% | Hard | 0.17569702187832992 | https://leetcode.com/problems/palindrome-pairs |
| 205 | 319 | Bulb Switcher | 45.4% | Medium | 0.1734438827619372 | https://leetcode.com/problems/bulb-switcher |
| 206 | 567 | Permutation in String | 44.4% | Medium | 0.16931057302189864 | https://leetcode.com/problems/permutation-in-string |
| 207 | 116 | Populating Next Right Pointers in Each Node | 45.2% | Medium | 0.16897814162027025 | https://leetcode.com/problems/populating-next-right-pointers-in-each-node |
| 208 | 325 | Maximum Size Subarray Sum Equals k | 46.8% | Medium | 0.16882086957505205 | https://leetcode.com/problems/maximum-size-subarray-sum-equals-k |
| 209 | 102 | Binary Tree Level Order Traversal | 54.6% | Medium | 0.16435828678782985 | https://leetcode.com/problems/binary-tree-level-order-traversal |
| 210 | 46 | Permutations | 63.5% | Medium | 0.16425503646428852 | https://leetcode.com/problems/permutations |
| 211 | 280 | Wiggle Sort | 63.8% | Medium | 0.16413412381144152 | https://leetcode.com/problems/wiggle-sort |
| 212 | 242 | Valid Anagram | 56.9% | Easy | 0.1620140669319784 | https://leetcode.com/problems/valid-anagram |
| 213 | 724 | Find Pivot Index | 44.0% | Easy | 0.15773063591797515 | https://leetcode.com/problems/find-pivot-index |
| 214 | 676 | Implement Magic Dictionary | 54.5% | Medium | 0.15104025741286586 | https://leetcode.com/problems/implement-magic-dictionary |
| 215 | 230 | Kth Smallest Element in a BST | 60.2% | Medium | 0.1474770794572995 | https://leetcode.com/problems/kth-smallest-element-in-a-bst |
| 216 | 328 | Odd Even Linked List | 55.7% | Medium | 0.14442996827561513 | https://leetcode.com/problems/odd-even-linked-list |
| 217 | 74 | Search a 2D Matrix | 36.5% | Medium | 0.13990475142949543 | https://leetcode.com/problems/search-a-2d-matrix |
| 218 | 160 | Intersection of Two Linked Lists | 40.6% | Easy | 0.13857026686146906 | https://leetcode.com/problems/intersection-of-two-linked-lists |
| 219 | 1209 | Remove All Adjacent Duplicates in String II | 56.9% | Medium | 0.13712574822724946 | https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii |
| 220 | 295 | Find Median from Data Stream | 44.3% | Hard | 0.13508385924075386 | https://leetcode.com/problems/find-median-from-data-stream |
| 221 | 442 | Find All Duplicates in an Array | 67.8% | Medium | 0.13441180353979212 | https://leetcode.com/problems/find-all-duplicates-in-an-array |
| 222 | 449 | Serialize and Deserialize BST | 52.0% | Medium | 0.1327502812764459 | https://leetcode.com/problems/serialize-and-deserialize-bst |
| 223 | 730 | Count Different Palindromic Subsequences | 41.8% | Hard | 0.13133600206108695 | https://leetcode.com/problems/count-different-palindromic-subsequences |
| 224 | 305 | Number of Islands II | 40.1% | Hard | 0.1304306149462744 | https://leetcode.com/problems/number-of-islands-ii |
| 225 | 885 | Spiral Matrix III | 69.4% | Medium | 0.1271551754852466 | https://leetcode.com/problems/spiral-matrix-iii |
| 226 | 54 | Spiral Matrix | 34.1% | Medium | 0.12572728493821236 | https://leetcode.com/problems/spiral-matrix |
| 227 | 694 | Number of Distinct Islands | 56.0% | Medium | 0.12516314295400602 | https://leetcode.com/problems/number-of-distinct-islands |
| 228 | 1146 | Snapshot Array | 37.0% | Medium | 0.12154546954921416 | https://leetcode.com/problems/snapshot-array |
| 229 | 1439 | Find the Kth Smallest Sum of a Matrix With Sorted Rows | 59.5% | Hard | 0.11918851726511835 | https://leetcode.com/problems/find-the-kth-smallest-sum-of-a-matrix-with-sorted-rows |
| 230 | 284 | Peeking Iterator | 45.7% | Medium | 0.11901099827011974 | https://leetcode.com/problems/peeking-iterator |
| 231 | 776 | Split BST | 55.8% | Medium | 0.11641035184441127 | https://leetcode.com/problems/split-bst |
| 232 | 435 | Non-overlapping Intervals | 42.9% | Medium | 0.1158164666843426 | https://leetcode.com/problems/non-overlapping-intervals |
| 233 | 1275 | Find Winner on a Tic Tac Toe Game | 52.8% | Easy | 0.11536465479210183 | https://leetcode.com/problems/find-winner-on-a-tic-tac-toe-game |
| 234 | 212 | Word Search II | 34.9% | Hard | 0.11439698130007839 | https://leetcode.com/problems/word-search-ii |
| 235 | 674 | Longest Continuous Increasing Subsequence | 45.9% | Easy | 0.11324303587009586 | https://leetcode.com/problems/longest-continuous-increasing-subsequence |
| 236 | 503 | Next Greater Element II | 56.5% | Medium | 0.11242734769506908 | https://leetcode.com/problems/next-greater-element-ii |
| 237 | 1047 | Remove All Adjacent Duplicates In String | 68.6% | Easy | 0.11181352460393465 | https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string |
| 238 | 1008 | Construct Binary Search Tree from Preorder Traversal | 78.4% | Medium | 0.11004936619718413 | https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal |
| 239 | 137 | Single Number II | 52.4% | Medium | 0.10746985577594965 | https://leetcode.com/problems/single-number-ii |
| 240 | 966 | Vowel Spellchecker | 47.2% | Medium | 0.10676797542570607 | https://leetcode.com/problems/vowel-spellchecker |
| 241 | 405 | Convert a Number to Hexadecimal | 43.9% | Easy | 0.10573219378884732 | https://leetcode.com/problems/convert-a-number-to-hexadecimal |
| 242 | 547 | Friend Circles | 58.6% | Medium | 0.10502210097355241 | https://leetcode.com/problems/friend-circles |
| 243 | 773 | Sliding Puzzle | 59.3% | Hard | 0.10294796925244239 | https://leetcode.com/problems/sliding-puzzle |
| 244 | 1411 | Number of Ways to Paint N × 3 Grid | 61.1% | Hard | 0.10135249426028749 | https://leetcode.com/problems/number-of-ways-to-paint-n-3-grid |
| 245 | 223 | Rectangle Area | 37.8% | Medium | 0.10064352577968744 | https://leetcode.com/problems/rectangle-area |
| 246 | 387 | First Unique Character in a String | 53.4% | Easy | 0.09971390202061521 | https://leetcode.com/problems/first-unique-character-in-a-string |
| 247 | 136 | Single Number | 65.5% | Easy | 0.09844680818822771 | https://leetcode.com/problems/single-number |
| 248 | 1053 | Previous Permutation With One Swap | 48.5% | Medium | 0.09835932019884275 | https://leetcode.com/problems/previous-permutation-with-one-swap |
| 249 | 489 | Robot Room Cleaner | 69.7% | Hard | 0.09769150308111128 | https://leetcode.com/problems/robot-room-cleaner |
| 250 | 394 | Decode String | 50.0% | Medium | 0.09572009987565212 | https://leetcode.com/problems/decode-string |
| 251 | 642 | Design Search Autocomplete System | 44.7% | Hard | 0.09500811062818718 | https://leetcode.com/problems/design-search-autocomplete-system |
| 252 | 239 | Sliding Window Maximum | 43.0% | Hard | 0.09271146326206103 | https://leetcode.com/problems/sliding-window-maximum |
| 253 | 1062 | Longest Repeating Substring | 57.2% | Medium | 0.09201889872025212 | https://leetcode.com/problems/longest-repeating-substring |
| 254 | 21 | Merge Two Sorted Lists | 53.5% | Easy | 0.09110919511165776 | https://leetcode.com/problems/merge-two-sorted-lists |
| 255 | 49 | Group Anagrams | 56.9% | Medium | 0.09101320494254857 | https://leetcode.com/problems/group-anagrams |
| 256 | 1077 | Project Employees III | 75.6% | Medium | 0.0907652093142671 | https://leetcode.com/problems/project-employees-iii |
| 257 | 1132 | Reported Posts II | 34.4% | Medium | 0.0903548750399561 | https://leetcode.com/problems/reported-posts-ii |
| 258 | 62 | Unique Paths | 54.1% | Medium | 0.08965185882136445 | https://leetcode.com/problems/unique-paths |
| 259 | 995 | Minimum Number of K Consecutive Bit Flips | 46.8% | Hard | 0.08894748601649616 | https://leetcode.com/problems/minimum-number-of-k-consecutive-bit-flips |
| 260 | 16 | 3Sum Closest | 46.0% | Medium | 0.08850538159227012 | https://leetcode.com/problems/3sum-closest |
| 261 | 25 | Reverse Nodes in k-Group | 42.1% | Hard | 0.08835766048944313 | https://leetcode.com/problems/reverse-nodes-in-k-group |
| 262 | 788 | Rotated Digits | 57.1% | Easy | 0.08743429938967429 | https://leetcode.com/problems/rotated-digits |
| 263 | 1113 | Reported Posts | 64.1% | Easy | 0.08552217343816201 | https://leetcode.com/problems/reported-posts |
| 264 | 614 | Second Degree Follower | 30.3% | Medium | 0.08479653666007693 | https://leetcode.com/problems/second-degree-follower |
| 265 | 345 | Reverse Vowels of a String | 44.2% | Easy | 0.08413974844494757 | https://leetcode.com/problems/reverse-vowels-of-a-string |
| 266 | 443 | String Compression | 41.3% | Easy | 0.08391368024915737 | https://leetcode.com/problems/string-compression |
| 267 | 550 | Game Play Analysis IV | 45.3% | Medium | 0.08286311601350513 | https://leetcode.com/problems/game-play-analysis-iv |
| 268 | 44 | Wildcard Matching | 24.7% | Hard | 0.08271909217936915 | https://leetcode.com/problems/wildcard-matching |
| 269 | 13 | Roman to Integer | 55.7% | Easy | 0.08237818622149326 | https://leetcode.com/problems/roman-to-integer |
| 270 | 962 | Maximum Width Ramp | 45.4% | Medium | 0.08184524810424337 | https://leetcode.com/problems/maximum-width-ramp |
| 271 | 884 | Uncommon Words from Two Sentences | 63.3% | Easy | 0.07990051073053109 | https://leetcode.com/problems/uncommon-words-from-two-sentences |
| 272 | 208 | Implement Trie (Prefix Tree) | 49.4% | Medium | 0.07910997849332738 | https://leetcode.com/problems/implement-trie-prefix-tree |
| 273 | 128 | Longest Consecutive Sequence | 45.1% | Hard | 0.0786603197723907 | https://leetcode.com/problems/longest-consecutive-sequence |
| 274 | 1254 | Number of Closed Islands | 60.5% | Medium | 0.07796154146971186 | https://leetcode.com/problems/number-of-closed-islands |
| 275 | 1055 | Shortest Way to Form String | 56.9% | Medium | 0.07681317776161672 | https://leetcode.com/problems/shortest-way-to-form-string |
| 276 | 778 | Swim in Rising Water | 53.1% | Hard | 0.07651914983419623 | https://leetcode.com/problems/swim-in-rising-water |
| 277 | 852 | Peak Index in a Mountain Array | 71.6% | Easy | 0.07637297878457401 | https://leetcode.com/problems/peak-index-in-a-mountain-array |
| 278 | 4 | Median of Two Sorted Arrays | 29.6% | Hard | 0.07615745318145342 | https://leetcode.com/problems/median-of-two-sorted-arrays |
| 279 | 468 | Validate IP Address | 24.1% | Medium | 0.07598590697792203 | https://leetcode.com/problems/validate-ip-address |
| 280 | 505 | The Maze II | 47.7% | Medium | 0.07133147800542972 | https://leetcode.com/problems/the-maze-ii |
| 281 | 1057 | Campus Bikes | 57.7% | Medium | 0.07107786641655695 | https://leetcode.com/problems/campus-bikes |
| 282 | 81 | Search in Rotated Sorted Array II | 33.0% | Medium | 0.07091146875905202 | https://leetcode.com/problems/search-in-rotated-sorted-array-ii |
| 283 | 346 | Moving Average from Data Stream | 70.9% | Easy | 0.06887402901251127 | https://leetcode.com/problems/moving-average-from-data-stream |
| 284 | 723 | Candy Crush | 69.2% | Medium | 0.06828590786613152 | https://leetcode.com/problems/candy-crush |
| 285 | 168 | Excel Sheet Column Title | 31.1% | Easy | 0.0676504718923617 | https://leetcode.com/problems/excel-sheet-column-title |
| 286 | 105 | Construct Binary Tree from Preorder and Inorder Traversal | 48.8% | Medium | 0.06685522312111739 | https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal |
| 287 | 178 | Rank Scores | 45.8% | Medium | 0.06551667145414991 | https://leetcode.com/problems/rank-scores |
| 288 | 298 | Binary Tree Longest Consecutive Sequence | 47.1% | Medium | 0.065169635074581 | https://leetcode.com/problems/binary-tree-longest-consecutive-sequence |
| 289 | 1108 | Defanging an IP Address | 87.5% | Easy | 0.06413595621854226 | https://leetcode.com/problems/defanging-an-ip-address |
| 290 | 414 | Third Maximum Number | 30.5% | Easy | 0.06304078374301514 | https://leetcode.com/problems/third-maximum-number |
| 291 | 11 | Container With Most Water | 50.8% | Medium | 0.060358007567261264 | https://leetcode.com/problems/container-with-most-water |
| 292 | 55 | Jump Game | 34.6% | Medium | 0.059854228581496645 | https://leetcode.com/problems/jump-game |
| 293 | 491 | Increasing Subsequences | 46.1% | Medium | 0.058581901624802396 | https://leetcode.com/problems/increasing-subsequences |
| 294 | 1305 | All Elements in Two Binary Search Trees | 76.1% | Medium | 0.05819353408024827 | https://leetcode.com/problems/all-elements-in-two-binary-search-trees |
| 295 | 373 | Find K Pairs with Smallest Sums | 36.7% | Medium | 0.058155920157074034 | https://leetcode.com/problems/find-k-pairs-with-smallest-sums |
| 296 | 417 | Pacific Atlantic Water Flow | 41.1% | Medium | 0.057523844138186606 | https://leetcode.com/problems/pacific-atlantic-water-flow |
| 297 | 312 | Burst Balloons | 51.8% | Hard | 0.056547726798068784 | https://leetcode.com/problems/burst-balloons |
| 298 | 218 | The Skyline Problem | 34.6% | Hard | 0.0564413109049518 | https://leetcode.com/problems/the-skyline-problem |
| 299 | 41 | First Missing Positive | 32.0% | Hard | 0.056273635982108605 | https://leetcode.com/problems/first-missing-positive |
| 300 | 24 | Swap Nodes in Pairs | 50.4% | Medium | 0.05465011300438079 | https://leetcode.com/problems/swap-nodes-in-pairs |
| 301 | 395 | Longest Substring with At Least K Repeating Characters | 41.4% | Medium | 0.05371219359052555 | https://leetcode.com/problems/longest-substring-with-at-least-k-repeating-characters |
| 302 | 679 | 24 Game | 46.4% | Hard | 0.05341723749698583 | https://leetcode.com/problems/24-game |
| 303 | 597 | Friend Requests I: Overall Acceptance Rate | 41.0% | Easy | 0.053062844975211534 | https://leetcode.com/problems/friend-requests-i-overall-acceptance-rate |
| 304 | 17 | Letter Combinations of a Phone Number | 46.8% | Medium | 0.052632421620123555 | https://leetcode.com/problems/letter-combinations-of-a-phone-number |
| 305 | 122 | Best Time to Buy and Sell Stock II | 57.0% | Easy | 0.05236798551731598 | https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii |
| 306 | 496 | Next Greater Element I | 63.8% | Easy | 0.05179150912840488 | https://leetcode.com/problems/next-greater-element-i |
| 307 | 209 | Minimum Size Subarray Sum | 38.2% | Medium | 0.05146227039335983 | https://leetcode.com/problems/minimum-size-subarray-sum |
| 308 | 681 | Next Closest Time | 45.0% | Medium | 0.05045206096038863 | https://leetcode.com/problems/next-closest-time |
| 309 | 285 | Inorder Successor in BST | 40.4% | Medium | 0.049569618859417214 | https://leetcode.com/problems/inorder-successor-in-bst |
| 310 | 79 | Word Search | 35.6% | Medium | 0.04917091711296865 | https://leetcode.com/problems/word-search |
| 311 | 593 | Valid Square | 43.1% | Medium | 0.048671406375812236 | https://leetcode.com/problems/valid-square |
| 312 | 1019 | Next Greater Node In Linked List | 57.4% | Medium | 0.04795804429616222 | https://leetcode.com/problems/next-greater-node-in-linked-list |
| 313 | 26 | Remove Duplicates from Sorted Array | 45.1% | Easy | 0.0476757427679509 | https://leetcode.com/problems/remove-duplicates-from-sorted-array |
| 314 | 698 | Partition to K Equal Sum Subsets | 45.0% | Medium | 0.04685917114094188 | https://leetcode.com/problems/partition-to-k-equal-sum-subsets |
| 315 | 556 | Next Greater Element III | 31.7% | Medium | 0.04679216150675895 | https://leetcode.com/problems/next-greater-element-iii |
| 316 | 191 | Number of 1 Bits | 49.8% | Easy | 0.045812334709758235 | https://leetcode.com/problems/number-of-1-bits |
| 317 | 48 | Rotate Image | 56.7% | Medium | 0.04495138786226632 | https://leetcode.com/problems/rotate-image |
| 318 | 935 | Knight Dialer | 45.2% | Medium | 0.04445176257083384 | https://leetcode.com/problems/knight-dialer |
| 319 | 148 | Sort List | 42.3% | Medium | 0.04408427313201935 | https://leetcode.com/problems/sort-list |
| 320 | 1498 | Number of Subsequences That Satisfy the Given Sum Condition | 36.7% | Medium | 0.04334372921647208 | https://leetcode.com/problems/number-of-subsequences-that-satisfy-the-given-sum-condition |
| 321 | 399 | Evaluate Division | 51.6% | Medium | 0.043089480538103624 | https://leetcode.com/problems/evaluate-division |
| 322 | 338 | Counting Bits | 69.5% | Medium | 0.0428445715346785 | https://leetcode.com/problems/counting-bits |
| 323 | 716 | Max Stack | 42.6% | Easy | 0.042695919196489414 | https://leetcode.com/problems/max-stack |
| 324 | 611 | Valid Triangle Number | 48.4% | Medium | 0.04255961441879593 | https://leetcode.com/problems/valid-triangle-number |
| 325 | 669 | Trim a Binary Search Tree | 63.0% | Easy | 0.04255961441879593 | https://leetcode.com/problems/trim-a-binary-search-tree |
| 326 | 430 | Flatten a Multilevel Doubly Linked List | 55.1% | Medium | 0.04154283751370906 | https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list |
| 327 | 1219 | Path with Maximum Gold | 65.1% | Medium | 0.04111576039097048 | https://leetcode.com/problems/path-with-maximum-gold |
| 328 | 37 | Sudoku Solver | 43.6% | Hard | 0.040527833612118376 | https://leetcode.com/problems/sudoku-solver |
| 329 | 918 | Maximum Sum Circular Subarray | 33.7% | Medium | 0.04045040846284272 | https://leetcode.com/problems/maximum-sum-circular-subarray |
| 330 | 14 | Longest Common Prefix | 35.4% | Easy | 0.039933598017406854 | https://leetcode.com/problems/longest-common-prefix |
| 331 | 686 | Repeated String Match | 32.3% | Easy | 0.03984590854719967 | https://leetcode.com/problems/repeated-string-match |
| 332 | 406 | Queue Reconstruction by Height | 66.9% | Medium | 0.03949613834265583 | https://leetcode.com/problems/queue-reconstruction-by-height |
| 333 | 210 | Course Schedule II | 40.7% | Medium | 0.03795788828372613 | https://leetcode.com/problems/course-schedule-ii |
| 334 | 1031 | Maximum Sum of Two Non-Overlapping Subarrays | 57.9% | Medium | 0.03711000965123125 | https://leetcode.com/problems/maximum-sum-of-two-non-overlapping-subarrays |
| 335 | 206 | Reverse Linked List | 62.5% | Easy | 0.03679633286058156 | https://leetcode.com/problems/reverse-linked-list |
| 336 | 887 | Super Egg Drop | 27.1% | Hard | 0.03660060864484636 | https://leetcode.com/problems/super-egg-drop |
| 337 | 28 | Implement strStr() | 34.5% | Easy | 0.03494144277828229 | https://leetcode.com/problems/implement-strstr |
| 338 | 152 | Maximum Product Subarray | 31.7% | Medium | 0.034438665054543384 | https://leetcode.com/problems/maximum-product-subarray |
| 339 | 886 | Possible Bipartition | 44.2% | Medium | 0.034103901828857086 | https://leetcode.com/problems/possible-bipartition |
| 340 | 1360 | Number of Days Between Two Dates | 48.8% | Easy | 0.03401688527825427 | https://leetcode.com/problems/number-of-days-between-two-dates |
| 341 | 384 | Shuffle an Array | 52.8% | Medium | 0.03399118781703353 | https://leetcode.com/problems/shuffle-an-array |
| 342 | 516 | Longest Palindromic Subsequence | 53.2% | Medium | 0.0332870969222259 | https://leetcode.com/problems/longest-palindromic-subsequence |
| 343 | 1287 | Element Appearing More Than 25% In Sorted Array | 60.2% | Easy | 0.033033556829153404 | https://leetcode.com/problems/element-appearing-more-than-25-in-sorted-array |
| 344 | 235 | Lowest Common Ancestor of a Binary Search Tree | 49.9% | Easy | 0.032470385030784074 | https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree |
| 345 | 300 | Longest Increasing Subsequence | 42.6% | Medium | 0.03245773693742074 | https://leetcode.com/problems/longest-increasing-subsequence |
| 346 | 228 | Summary Ranges | 39.5% | Medium | 0.03157326191609021 | https://leetcode.com/problems/summary-ranges |
| 347 | 150 | Evaluate Reverse Polish Notation | 36.3% | Medium | 0.031526253646773944 | https://leetcode.com/problems/evaluate-reverse-polish-notation |
| 348 | 703 | Kth Largest Element in a Stream | 49.7% | Easy | 0.031004894819414507 | https://leetcode.com/problems/kth-largest-element-in-a-stream |
| 349 | 303 | Range Sum Query - Immutable | 44.7% | Easy | 0.029549096691749193 | https://leetcode.com/problems/range-sum-query-immutable |
| 350 | 7 | Reverse Integer | 25.8% | Easy | 0.029372034825448746 | https://leetcode.com/problems/reverse-integer |
| 351 | 176 | Second Highest Salary | 31.6% | Easy | 0.029252542837437355 | https://leetcode.com/problems/second-highest-salary |
| 352 | 324 | Wiggle Sort II | 29.9% | Medium | 0.02898753687325229 | https://leetcode.com/problems/wiggle-sort-ii |
| 353 | 509 | Fibonacci Number | 67.2% | Easy | 0.028156003871381816 | https://leetcode.com/problems/fibonacci-number |
| 354 | 472 | Concatenated Words | 43.7% | Hard | 0.027664281472355556 | https://leetcode.com/problems/concatenated-words |
| 355 | 159 | Longest Substring with At Most Two Distinct Characters | 49.4% | Medium | 0.02717558537896476 | https://leetcode.com/problems/longest-substring-with-at-most-two-distinct-characters |
| 356 | 437 | Path Sum III | 47.2% | Medium | 0.02708561605844235 | https://leetcode.com/problems/path-sum-iii |
| 357 | 1379 | Find a Corresponding Node of a Binary Tree in a Clone of That Tree | 83.8% | Medium | 0.02645656953683045 | https://leetcode.com/problems/find-a-corresponding-node-of-a-binary-tree-in-a-clone-of-that-tree |
| 358 | 979 | Distribute Coins in Binary Tree | 68.9% | Medium | 0.026196651946570663 | https://leetcode.com/problems/distribute-coins-in-binary-tree |
| 359 | 403 | Frog Jump | 39.7% | Hard | 0.0259249775263148 | https://leetcode.com/problems/frog-jump |
| 360 | 410 | Split Array Largest Sum | 44.5% | Hard | 0.025807883955872597 | https://leetcode.com/problems/split-array-largest-sum |
| 361 | 90 | Subsets II | 47.1% | Medium | 0.025497131933483772 | https://leetcode.com/problems/subsets-ii |
| 362 | 189 | Rotate Array | 34.7% | Easy | 0.024924029676386045 | https://leetcode.com/problems/rotate-array |
| 363 | 30 | Substring with Concatenation of All Words | 25.4% | Hard | 0.02486144206532915 | https://leetcode.com/problems/substring-with-concatenation-of-all-words |
| 364 | 662 | Maximum Width of Binary Tree | 41.0% | Medium | 0.024116924478312346 | https://leetcode.com/problems/maximum-width-of-binary-tree |
| 365 | 307 | Range Sum Query - Mutable | 34.6% | Medium | 0.02223549085228711 | https://leetcode.com/problems/range-sum-query-mutable |
| 366 | 221 | Maximal Square | 37.7% | Medium | 0.022108490754203434 | https://leetcode.com/problems/maximal-square |
| 367 | 108 | Convert Sorted Array to Binary Search Tree | 57.9% | Easy | 0.022033389270751453 | https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree |
| 368 | 112 | Path Sum | 41.2% | Easy | 0.021701651897460775 | https://leetcode.com/problems/path-sum |
| 369 | 1137 | N-th Tribonacci Number | 55.9% | Easy | 0.02072613051711693 | https://leetcode.com/problems/n-th-tribonacci-number |
| 370 | 60 | Permutation Sequence | 38.4% | Hard | 0.020471543980187256 | https://leetcode.com/problems/permutation-sequence |
| 371 | 392 | Is Subsequence | 49.2% | Easy | 0.02033508842008217 | https://leetcode.com/problems/is-subsequence |
| 372 | 525 | Contiguous Array | 42.8% | Medium | 0.01975372873623256 | https://leetcode.com/problems/contiguous-array |
| 373 | 229 | Majority Element II | 35.6% | Medium | 0.019057270410286146 | https://leetcode.com/problems/majority-element-ii |
| 374 | 787 | Cheapest Flights Within K Stops | 39.3% | Medium | 0.018824085245635554 | https://leetcode.com/problems/cheapest-flights-within-k-stops |
| 375 | 450 | Delete Node in a BST | 43.1% | Medium | 0.018536211907915243 | https://leetcode.com/problems/delete-node-in-a-bst |
| 376 | 70 | Climbing Stairs | 47.8% | Easy | 0.018323749536870576 | https://leetcode.com/problems/climbing-stairs |
| 377 | 706 | Design HashMap | 61.3% | Easy | 0.01752893260576219 | https://leetcode.com/problems/design-hashmap |
| 378 | 993 | Cousins in Binary Tree | 52.0% | Easy | 0.017414458368636587 | https://leetcode.com/problems/cousins-in-binary-tree |
| 379 | 1266 | Minimum Time Visiting All Points | 79.6% | Easy | 0.017354014693151613 | https://leetcode.com/problems/minimum-time-visiting-all-points |
| 380 | 289 | Game of Life | 54.5% | Medium | 0.0173239499317743 | https://leetcode.com/problems/game-of-life |
| 381 | 95 | Unique Binary Search Trees II | 40.6% | Medium | 0.016856699181010838 | https://leetcode.com/problems/unique-binary-search-trees-ii |
| 382 | 145 | Binary Tree Postorder Traversal | 55.0% | Hard | 0.01682911820009702 | https://leetcode.com/problems/binary-tree-postorder-traversal |
| 383 | 997 | Find the Town Judge | 50.1% | Easy | 0.01677891712910938 | https://leetcode.com/problems/find-the-town-judge |
| 384 | 51 | N-Queens | 46.6% | Hard | 0.016393809775676407 | https://leetcode.com/problems/n-queens |
| 385 | 1304 | Find N Unique Integers Sum up to Zero | 76.3% | Easy | 0.015892269319508656 | https://leetcode.com/problems/find-n-unique-integers-sum-up-to-zero |
| 386 | 153 | Find Minimum in Rotated Sorted Array | 45.1% | Medium | 0.014939586916186732 | https://leetcode.com/problems/find-minimum-in-rotated-sorted-array |
| 387 | 203 | Remove Linked List Elements | 38.6% | Easy | 0.014519311324453305 | https://leetcode.com/problems/remove-linked-list-elements |
| 388 | 653 | Two Sum IV - Input is a BST | 55.5% | Easy | 0.014224990931347289 | https://leetcode.com/problems/two-sum-iv-input-is-a-bst |
| 389 | 179 | Largest Number | 28.8% | Medium | 0.013865040137171665 | https://leetcode.com/problems/largest-number |
| 390 | 64 | Minimum Path Sum | 54.5% | Medium | 0.013734383449598314 | https://leetcode.com/problems/minimum-path-sum |
| 391 | 101 | Symmetric Tree | 46.8% | Easy | 0.013553786479814183 | https://leetcode.com/problems/symmetric-tree |
| 392 | 344 | Reverse String | 68.5% | Easy | 0.013014662307854044 | https://leetcode.com/problems/reverse-string |
| 393 | 77 | Combinations | 54.7% | Medium | 0.01255115315451512 | https://leetcode.com/problems/combinations |
| 394 | 287 | Find the Duplicate Number | 55.5% | Medium | 0.012335682739188652 | https://leetcode.com/problems/find-the-duplicate-number |
| 395 | 445 | Add Two Numbers II | 54.5% | Medium | 0.01233061245747872 | https://leetcode.com/problems/add-two-numbers-ii |
| 396 | 172 | Factorial Trailing Zeroes | 37.8% | Easy | 0.012326812480658571 | https://leetcode.com/problems/factorial-trailing-zeroes |
| 397 | 205 | Isomorphic Strings | 39.8% | Easy | 0.011544139746865315 | https://leetcode.com/problems/isomorphic-strings |
| 398 | 733 | Flood Fill | 55.3% | Easy | 0.011217167530924988 | https://leetcode.com/problems/flood-fill |
| 399 | 171 | Excel Sheet Column Number | 55.9% | Easy | 0.011195191092491645 | https://leetcode.com/problems/excel-sheet-column-number |
| 400 | 104 | Maximum Depth of Binary Tree | 66.0% | Easy | 0.011105055822701604 | https://leetcode.com/problems/maximum-depth-of-binary-tree |
| 401 | 103 | Binary Tree Zigzag Level Order Traversal | 48.3% | Medium | 0.01063025572799205 | https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal |
| 402 | 234 | Palindrome Linked List | 39.3% | Easy | 0.010171877938733932 | https://leetcode.com/problems/palindrome-linked-list |
| 403 | 72 | Edit Distance | 44.8% | Hard | 0.010017614452317782 | https://leetcode.com/problems/edit-distance |
| 404 | 61 | Rotate List | 30.0% | Medium | 0.009925639799969955 | https://leetcode.com/problems/rotate-list |
| 405 | 113 | Path Sum II | 46.7% | Medium | 0.009784813879998279 | https://leetcode.com/problems/path-sum-ii |
| 406 | 905 | Sort Array By Parity | 74.1% | Easy | 0.009603915354180344 | https://leetcode.com/problems/sort-array-by-parity |
| 407 | 151 | Reverse Words in a String | 21.9% | Medium | 0.009570916441992467 | https://leetcode.com/problems/reverse-words-in-a-string |
| 408 | 96 | Unique Binary Search Trees | 52.9% | Medium | 0.009242209964820877 | https://leetcode.com/problems/unique-binary-search-trees |
| 409 | 1143 | Longest Common Subsequence | 58.4% | Medium | 0.008835931134362285 | https://leetcode.com/problems/longest-common-subsequence |
| 410 | 63 | Unique Paths II | 34.6% | Medium | 0.008712753874961187 | https://leetcode.com/problems/unique-paths-ii |
| 411 | 763 | Partition Labels | 76.1% | Medium | 0.008385793376274025 | https://leetcode.com/problems/partition-labels |
| 412 | 84 | Largest Rectangle in Histogram | 35.2% | Hard | 0.00833685528906183 | https://leetcode.com/problems/largest-rectangle-in-histogram |
| 413 | 38 | Count and Say | 44.6% | Easy | 0.007829360800435779 | https://leetcode.com/problems/count-and-say |
| 414 | 6 | ZigZag Conversion | 36.3% | Medium | 0.0077116248757144665 | https://leetcode.com/problems/zigzag-conversion |
| 415 | 66 | Plus One | 43.0% | Easy | 0.007324847595025828 | https://leetcode.com/problems/plus-one |
| 416 | 36 | Valid Sudoku | 48.7% | Medium | 0.007258242715805398 | https://leetcode.com/problems/valid-sudoku |
| 417 | 204 | Count Primes | 31.5% | Easy | 0.007072165261362441 | https://leetcode.com/problems/count-primes |
| 418 | 118 | Pascal's Triangle | 52.5% | Easy | 0.006749941254175012 | https://leetcode.com/problems/pascals-triangle |
| 419 | 83 | Remove Duplicates from Sorted List | 45.4% | Easy | 0.006353261522609498 | https://leetcode.com/problems/remove-duplicates-from-sorted-list |
| 420 | 1528 | Shuffle String | 86.1% | Easy | 0.006295047716793515 | https://leetcode.com/problems/shuffle-string |
| 421 | 237 | Delete Node in a Linked List | 63.8% | Easy | 0.005144705881237697 | https://leetcode.com/problems/delete-node-in-a-linked-list |
| 422 | 268 | Missing Number | 51.7% | Easy | 0.0048804391649084865 | https://leetcode.com/problems/missing-number |
| 423 | 154 | Find Minimum in Rotated Sorted Array II | 41.6% | Hard | 0.004780123824719199 | https://leetcode.com/problems/find-minimum-in-rotated-sorted-array-ii |
| 424 | 155 | Min Stack | 44.5% | Easy | 0.00474891074128171 | https://leetcode.com/problems/min-stack |
| 425 | 141 | Linked List Cycle | 41.1% | Easy | 0.0034937584669245472 | https://leetcode.com/problems/linked-list-cycle |
| 426 | 94 | Binary Tree Inorder Traversal | 63.3% | Medium | 0.0033551449021403577 | https://leetcode.com/problems/binary-tree-inorder-traversal |
| 427 | 309 | Best Time to Buy and Sell Stock with Cooldown | 47.4% | Medium | 0.0028498166907604426 | https://leetcode.com/problems/best-time-to-buy-and-sell-stock-with-cooldown |
| 428 | 260 | Single Number III | 64.3% | Medium | 0.0020288097849578786 | https://leetcode.com/problems/single-number-iii |
| 429 | 100 | Same Tree | 53.4% | Easy | 0.0014080047382258295 | https://leetcode.com/problems/same-tree |