Tag: coding exercise
Given a binary tree root and an integer target, delete all the leaf nodes with value target. Note that once you delete a leaf node with value target, if …
Determine whether an integer is a palindrome. An integer is a palindrome when it reads the same backward as forward. Example 1: Input: 121 Output: true Example 2: Input: …
Given a binary tree, return the sum of values of nodes with even-valued grandparent. (A grandparent of a node is the parent of its parent, if it exists.) If …
Given an integer n. No-Zero integer is a positive integer which doesn’t contain any 0 in its decimal representation. Return a list of two integers where: A and B …
There are n people whose IDs go from 0 to n – 1 and each person belongs exactly to one group. Given the array groupSizes of length n telling …
