ID,Title,Acceptance,Difficulty,Frequency,Leetcode Question Link 759,Employee Free Time,66.3%,Hard,0.8067517126995383, https://leetcode.com/problems/employee-free-time 695,Max Area of Island,62.7%,Medium,0.7079785078050851, https://leetcode.com/problems/max-area-of-island 1229,Meeting Scheduler,52.7%,Medium,0.5152176154540078, https://leetcode.com/problems/meeting-scheduler 1359,Count All Valid Pickup and Delivery Options,57.9%,Hard,0.4639892692240469, https://leetcode.com/problems/count-all-valid-pickup-and-delivery-options 355,Design Twitter,30.3%,Medium,0.3183174263408411, https://leetcode.com/problems/design-twitter 1174,Immediate Food Delivery II,58.5%,Medium,0.12555653398976382, https://leetcode.com/problems/immediate-food-delivery-ii 1173,Immediate Food Delivery I,80.4%,Easy,0.06592172080482424, https://leetcode.com/problems/immediate-food-delivery-i 37,Sudoku Solver,43.6%,Hard,0.01821543989134118, https://leetcode.com/problems/sudoku-solver 210,Course Schedule II,40.7%,Medium,0.01704828902223426, https://leetcode.com/problems/course-schedule-ii 56,Merge Intervals,39.3%,Medium,0.013819532422258866, https://leetcode.com/problems/merge-intervals 227,Basic Calculator II,36.9%,Medium,0.01239941490503826, https://leetcode.com/problems/basic-calculator-ii 36,Valid Sudoku,48.7%,Medium,0.007258242715805398, https://leetcode.com/problems/valid-sudoku 15,3Sum,26.8%,Medium,0.004940992758742591, https://leetcode.com/problems/3sum 121,Best Time to Buy and Sell Stock,50.5%,Easy,0.0047725193990346675, https://leetcode.com/problems/best-time-to-buy-and-sell-stock 146,LRU Cache,33.2%,Medium,0.004600353139061353, https://leetcode.com/problems/lru-cache