priorityQueue in c++/java/python https://leetcode.com/problems/find-the-kth-largest-integer-in-the-array/discuss/1431847/cjavapython-3-solutions-minheap-maxheap-quickselect-clean-concise/1064930
non-standard : recursive dfs + memoization https://leetcode.com/problems/minimum-number-of-work-sessions-to-finish-the-tasks/discuss/1431836/C%2B%2B-Solution-or-Recursion-%2B-Memoization
using c++ map to get maxProfit in scheduling jobs with start,end,profit https://leetcode.com/problems/maximum-profit-in-job-scheduling/discuss/409009/JavaC%2B%2BPython-DP-Solution
verify preorder serialization is valid or not https://leetcode.com/submissions/detail/544562413/
is s subsequence of t https://leetcode.com/submissions/detail/545052502/
c++ convert string to int, find if vector of string contains a given string using any_of generate random string of lenth n of 0s and 1s https://leetcode.com/problems/find-unique-binary-string/discuss/1418743/Sweep-OMG-and-Randomization related to cantor daigonalization
merge k sorted lists https://leetcode.com/submissions/detail/536791690/
header.h trick in some indian guy solution in recent kickstart