Riot Games Interview Questions

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Most Strongly Connected

You're given the following multi dimensional array matrix: js const matrix 1, 1, 0, 0, 0 , 0, 1, 1, 0, 0 , 0, 1, 0, 1, 0 , 1, 0, 0, 0, 0 Could you find the largest concentration of connected 1 s in the matrix? Write MostConnectedOnes matrix: array class o...

Difficulty: 8/10

Generate All String Permutations

Write an algorithm that takes an input string like "abc" , and prints out all possible permutations of the string. A permutation of a group of elements is defined as one of the n! number possible arrangements the elements can take, where n is the number of elements in the range. We'd expect t...

Difficulty: 6/10

Bottom Left Node Value

Assume we're using a binary tree lessons an intro to binary trees and search trees in writing a video game via Binary Space Partitioning https: en.wikipedia.org wiki Binary_space_partitioning . We need to identify the bottom left leaf, that is the leftmost value in the lowest row of the bi...

Difficulty: 4/10

The Coin Change Problem

If I give you coins of denominations 3, 7, 9 a coin worth 3 cents, a coin worth 7 cents, etc. , can you tell me the minimum number of coins that are needed to make a total of 37 ? You can assume that an infinite supply of all these coins are available to you. This challenge is about so...

Difficulty: 8/10

Fizz Buzz

Fizz Buzz is a classic interview question that apparently many experienced engineering candidates often can't solve! Let's cover it today. We're given a number in the form of an integer n . Write a function that returns the string representation of all numbers from 1 to n based on the followin...

Difficulty: 3/10

Build a Calculator

Let's build a very basic calculator by programming it! You've probably seen one that look similar to this: But we won't be building a physical calculator HardwareDaily will need to wait! instead, we'll be writing a simple program that can serve as one. Can you write a function that will evalua...

Difficulty: 7/10

Classical N-Queen Problem

N Queen Problem: The Chessboard Conundrum Imagine stepping into an interview room, and the interviewer asks you to solve the N Queen problem. It's a modern take on the classic 8 Queen Puzzle https: en.wikipedia.org wiki Eight_queens_puzzle , where you place queens on a chessboard in such a way ...

Difficulty: 4/10

Max Per Level

Given a binary tree, write a method to return an array containing the largest by value node values at each level. In other words, we're looking for the max per level . So for instance, given the following binary tree, we'd get 2, 7, 9 if the method grabbed the correct maxes. js ...

Difficulty: 4/10

How Out of Order

*This was submitted by user Hackleman.* Determine how "out of order" a list is by writing a function that returns the number of inversions in that list. Two elements of a list L , L i and L j , form an inversion if L i j . For example, the list 5, 4, 3, 2, 1 has 10 inversi...

Difficulty: 5/10

Introduction to Amazon EC2

AWS EC2 Amazon **Elastic Compute Cloud** **AWS Amazon Web Services ** is the superhero of the tech world, providing a full range of services like a buffet, from computation and memory to databases, translation, networking, and more. The Elastic Compute Cloud, **EC2**, is the muscle that ma...

Difficulty: 5/10

Hash Tables

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Difficulty: 5/10

R Vs Python for Machine Learning

**R Vs Python for Machine Learning** So you're thinking of building a machine learning project, and it's time to decide on a programming language. Although programming languages R and Python offer similar capabilities, they differ in syntax, libraries and community support. Let's take a closer l...

Difficulty: 5/10

Interview Reports

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66 Riot Games Interview Questions Answers...

If you were given more initiatives than you could handle, what would you do? How did you hear about the position In Riot Games? What attracted you to this company In Riot Games? What would you do if y...

People at Riot Games Say

This information was sourced from reviews originally posted on Glassdoor.

Products you work on are games and entertainment that people all over the world are passionate about. Easy to find motivation if you are intrinsically motivated.