Algo

kadane https://leetcode.com/submissions/detail/545186446/

sudoku solver https://leetcode.com/submissions/detail/542160718/

cantor's diagonalization https://leetcode.com/problems/find-unique-binary-string/discuss/1418687/Detailed-Explanation-O(N)-Java-C%2B%2B-Python-short-concise-code-Cantor's-Diagonalization

unexpected binary search 
https://leetcode.com/submissions/detail/539776707/

normalize array https://www.geeksforgeeks.org/count-inversions-array-set-3-using-bit/

mergeSort inversionCount https://www.hackerearth.com/practice/algorithms/sorting/merge-sort/tutorial/

unionFind:
normal and weighted
https://www.hackerearth.com/submission/4517329/

better approaches

generic solution, 
find number of s that can be formed with chars in t
https://leetcode.com/submissions/detail/537300191/

cpp

All algos
https://docs.microsoft.com/en-us/cpp/standard-library/algorithm?view=msvc-160

Ostream
https://docs.microsoft.com/en-us/cpp/standard-library/overloading-the-output-operator-for-your-own-classes?view=msvc-160

class Date
{
    int mo, da, yr;
public:
    Date(int m, int d, int y)
    {
        mo = m; da = d; yr = y;
    }
    friend ostream& operator<<(ostream& os, const Date& dt);
};

ostream& operator<<(ostream& os, const Date& dt)
{
    os << dt.mo << '/' << dt.da << '/' << dt.yr;
    return os;
}


timeout
https://docs.microsoft.com/en-us/cpp/standard-library/effects-of-buffering?view=msvc-160


cout formatting
https://docs.microsoft.com/en-us/cpp/standard-library/using-insertion-operators-and-controlling-format?view=msvc-160


c++ lambda examples
https://docs.microsoft.com/en-us/cpp/cpp/examples-of-lambda-expressions?view=msvc-160

links.md

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/

https://atcoder.github.io/ac-library/production/document_en/
https://github.com/ecnerwala/cp-book