Tag: breadth first search algorithm

Teaching Kids Programming: Videos on Data Structures and Algorithms You are given a positive integer n. A binary string x is valid if all substrings of x of length …

Teaching Kids Programming: Videos on Data Structures and Algorithms There is an undirected tree with n nodes labeled from 0 to n – 1 and n – 1 edges. …

Teaching Kids Programming: Videos on Data Structures and Algorithms You are given a positive integer n, you can do the following operation any number of times: Add or subtract …

Teaching Kids Programming: Videos on Data Structures and Algorithms You are given a list of bombs. The range of a bomb is defined as the area where its effect …

Teaching Kids Programming: Videos on Data Structures and Algorithms Given the root of a binary tree, return the zigzag level order traversal of its nodes’ values. (i.e., from left …