Given a list of integers nums, return whether the number of occurrences of every value in the array is unique. Note: Numbers can be negative. Constraint n ≤ 100,000 …
Teaching Kids Programming: Videos on Data Structures and Algorithms Given a positive integer num, return the sum of its digits. Bonus: Can you do it without using strings? Constraints …
Teaching Kids Programming: Videos on Data Structures and Algorithms The factorial of a number n is defined as n! = n * (n – 1) * (n – 2) …
You are given a lowercase alphabet string s, and an offset integer k. Replace every letter in s with a letter k positions further along the alphabet. Note: If …
November 29, 2020
algorithms, data structure, Hash Map / Hash Set, programming languages, Python, python, Recursion, teaching kids programming, Two Pointer, youtube video
Teaching Kids Programming: Videos on Data Structures and Algorithms This is actually a very famous known problem for beginners to into Algorithms & Data Structures. Given a list of …
Given an N by N matrix of letters matrix, return whether there are exactly N different letters that appear in the matrix and each letter appears exactly once in …