ID,Title,Acceptance,Difficulty,Frequency,Leetcode Question Link 42,Trapping Rain Water,48.9%,Hard,0.004350670338744988, https://leetcode.com/problems/trapping-rain-water 977,Squares of a Sorted Array,72.1%,Easy,0.003891055492966611, https://leetcode.com/problems/squares-of-a-sorted-array 49,Group Anagrams,56.9%,Medium,0.0038040939835560453, https://leetcode.com/problems/group-anagrams 200,Number of Islands,46.8%,Medium,0.0028897578265903614, https://leetcode.com/problems/number-of-islands 206,Reverse Linked List,62.5%,Easy,0.0023398665252948926, https://leetcode.com/problems/reverse-linked-list