In this HackerEarth Minimum Nodes problem solution You are given a tree with N nodes…

In this HackerEarth Words And Trees problem solution You are given a rooted tree with…

In this HackerEarth Optimal Edge Weights problem solution There is a state (territory) which is…

In this HackerEarth Multiple Subtrees <Liv.ai> problem solution You are given a tree (not necessarily…

In this HackerEarth Matrix and Volume problem solution You are given a large box of…

In this HackerEarth Little Shino and K Ancestor problem solution Assume that you are given…