Given a string s and an integer k, return true if you can use all the characters in s to construct k palindrome strings or false otherwise. Explanation: It is impossible to construct 3 palindromes ...

//Given a linked list of N nodes where nodes can contain values 0s, 1s, and 2s only. The task is to segregate 0s, 1s, and 2s linked list such that all zeros segregate to head side, 2s at the end of ...