Two Sum

Given an array of integers numbers and an integer target, return indices of the two numbers such that they add up to target.

Pomodoro

The Pomodoro Technique is a time management system that encourages people to work with the time they have.

Credit card

You can enter and validate a credit card form.

Data Structures

This project tries to explain in a clear and visual way how data structures work in the JS language.

String Compression

Given an array of characters "chars", compress it using an algorithm to search for repeated characters.

Boats to Save People

Return the minimum number of boats to carry every given person.

Removing Stars From a String

You are given a string s, which contains stars '*', return the string after all stars have been removed.

Maximum value of coins.

There are n piles of coins on a table. Each pile consists of a positive number of coins of assorted denominations. In one move, you can choose any coin on top of any pile, remove it, and add it to your wallet.

Sum of Square Numbers.

Given a non-negative integer c, decide whether there're two integers a and b such that a^2 + b^2 = c.