Problem Statement (Asked By Facebook) Given the mapping a = 1, b = 2, …, z = 26, and an…

A unival tree (short for "universal value tree") is a tree in which all nodes have the same value. Given…

Problem Statement (Asked By Airbnb) Given a list of integers, write a function to compute the largest sum of numbers…

Design a job scheduler that accepts a function f and an integer n. The scheduler should execute the function f…

Build an autocomplete system that, given a query string s and a set of possible query strings returns all strings…

There is a staircase with N steps, and you can ascend either 1 step or 2 steps at a time….

Given an integer k and a string s, write a function to determine the length of the longest substring in…

The formula for the area of a circle is given by πr². Use the Monte Carlo method to approximate the…

You are given a stream of elements that is too large to fit into memory. Write an algorithm to select…

You manage an e-commerce website and need to keep track of the last N order IDs in a log. Design…

A builder plans to construct N houses in a row, where each house can be painted in K different colors….

You are given two singly linked lists that intersect at some node. Your task is to find and return the…