ID,Title,Acceptance,Difficulty,Frequency,Leetcode Question Link 37,Sudoku Solver,43.6%,Hard,0.0346243462817872, https://leetcode.com/problems/sudoku-solver 165,Compare Version Numbers,27.4%,Medium,0.029283880120642022, https://leetcode.com/problems/compare-version-numbers 21,Merge Two Sorted Lists,53.5%,Easy,0.02011578137441701, https://leetcode.com/problems/merge-two-sorted-lists 268,Missing Number,51.7%,Easy,0.010947682628191997, https://leetcode.com/problems/missing-number 200,Number of Islands,46.8%,Medium,0.006490251382779317, https://leetcode.com/problems/number-of-islands