301,Remove Invalid Parentheses,43.3%,Hard,0.13310393847431484, https://leetcode.com/problems/remove-invalid-parentheses 1190,Reverse Substrings Between Each Pair of Parentheses,61.5%,Medium,0.09928670042921932, https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses 55,Jump Game,34.6%,Medium,0.059854228581496645, https://leetcode.com/problems/jump-game 253,Meeting Rooms II,45.7%,Medium,0.04945628059066218, https://leetcode.com/problems/meeting-rooms-ii 227,Basic Calculator II,36.9%,Medium,0.04870104158125306, https://leetcode.com/problems/basic-calculator-ii 759,Employee Free Time,66.3%,Hard,0.04861224405509378, https://leetcode.com/problems/employee-free-time 56,Merge Intervals,39.3%,Medium,0.04173304225331761, https://leetcode.com/problems/merge-intervals 20,Valid Parentheses,39.0%,Easy,0.0023005704055949323, https://leetcode.com/problems/valid-parentheses 15,3Sum,26.8%,Medium,0.0021990113314367685, https://leetcode.com/problems/3sum