Teaching Kids Programming: Videos on Data Structures and Algorithms Yesterday we talked about summing up the first N odd numbers, we know that the equation is N*N. Today, let’s …
You are given a list of integers nums, and want to make the values equal. Consider an operation where you pick an integer in the list and increment every …
Teaching Kids Programming: Videos on Data Structures and Algorithms The Sum of First N Odd Numbers goes like this 1, 1+3=4, 1+3+5=9, 1+3+5+7=16 … As we can guess the …
Given a string s containing balanced parentheses “(” and “)”, split them into the maximum number of balanced groups. Constraints n ≤ 100,000 where n is length of s. …
Teaching Kids Programming: Videos on Data Structures and Algorithms Given NxN chess board, you are asked to place N queens so that they are not attacking each other horizontally, …
You are given a phone number as a string number. number consists of digits, spaces ‘ ‘, and/or dashes ‘-‘. You would like to reformat the phone number in …