ID,Title,Acceptance,Difficulty,Frequency,Leetcode Question Link 740,Delete and Earn,48.6%,Medium,0.35086940302246983, https://leetcode.com/problems/delete-and-earn 547,Friend Circles,58.6%,Medium,0.21411487503668122, https://leetcode.com/problems/friend-circles 1010,Pairs of Songs With Total Durations Divisible by 60,47.4%,Easy,0.166463766150424, https://leetcode.com/problems/pairs-of-songs-with-total-durations-divisible-by-60 366,Find Leaves of Binary Tree,70.6%,Medium,0.15413619386178415, https://leetcode.com/problems/find-leaves-of-binary-tree 133,Clone Graph,34.8%,Medium,0.017381665875995565, https://leetcode.com/problems/clone-graph 10,Regular Expression Matching,26.8%,Hard,0.01542711432325032, https://leetcode.com/problems/regular-expression-matching 41,First Missing Positive,32.0%,Hard,0.006163347707668678, https://leetcode.com/problems/first-missing-positive