Tag: hash set
Teaching Kids Programming: Videos on Data Structures and Algorithms There is a malfunctioning keyboard where some letter keys do not work. All other keys on the keyboard work properly. …
Teaching Kids Programming: Videos on Data Structures and Algorithms You are given a list of lowercase alphabet strings words where each string is of the same length. Return whether …
Teaching Kids Programming: Videos on Data Structures and Algorithms Given all the nodes of an N-ary tree as an array Node tree where each node has a unique value. …
Given an alphanumeric string s, return the second largest numerical digit that appears in s, or -1 if it does not exist. An alphanumeric string is a string consisting …
Teaching Kids Programming: Videos on Data Structures and Algorithms Given a list of integers nums, return the number of elements x there are such that x + 1 exists …