ID,Title,Acceptance,Difficulty,Frequency,Leetcode Question Link 529,Minesweeper,59.1%,Medium,0.03486918507635715, https://leetcode.com/problems/minesweeper 146,LRU Cache,33.2%,Medium,0.031510805207477295, https://leetcode.com/problems/lru-cache 304,Range Sum Query 2D - Immutable,38.6%,Medium,0.023009339909829205, https://leetcode.com/problems/range-sum-query-2d-immutable 695,Max Area of Island,62.7%,Medium,0.019939965763769146, https://leetcode.com/problems/max-area-of-island 986,Interval List Intersections,67.3%,Medium,0.011438500466121056, https://leetcode.com/problems/interval-list-intersections 200,Number of Islands,46.8%,Medium,0.011015601921505717, https://leetcode.com/problems/number-of-islands 63,Unique Paths II,34.6%,Medium,0.008375258336732413, https://leetcode.com/problems/unique-paths-ii 36,Valid Sudoku,48.7%,Medium,0.0069420618952821065, https://leetcode.com/problems/valid-sudoku 23,Merge k Sorted Lists,40.2%,Hard,0.0038759738446929853, https://leetcode.com/problems/merge-k-sorted-lists 79,Word Search,35.6%,Medium,0.0016410260092945288, https://leetcode.com/problems/word-search