Tiger's leetcode solution

There is a brick wall in front of you. The wall is rectangular and has several rows of bricks. The bricks have the same height but different...

Koko loves to eat bananas.  There are  N  piles of bananas, the  i -th pile has  piles[i]  bananas.  The guards have gone and will come back...

  There are   N   students in a class. Some of them are friends, while some are not. Their friendship is transitive in nature. For example, ...

Given two strings  s1  and  s2 , write a function to return true if  s2  contains the permutation of  s1 . In other words, one of the first ...

  Given an array consists of non-negative integers, your task is to count the number of triplets chosen from the array that can make triangl...

Suppose you have  n  integers labeled  1  through  n . A permutation of those  n  integers  perm  ( 1-indexed ) is considered a  beautiful a...

  Given a binary tree   root . Split the binary tree into two subtrees by removing 1 edge such that the product of the sums of the subtrees ...