They say practice makes perfect. Well here's your chance to practice!
We've compiled a list of over 50 different practice coding interview questions, like the ones that you will see in coding interviews at Google, Facebook, and Microsoft. Not only do you get practice interview questions and answers, but we create detailed explanation videos for each solution, showing you how to solve it in an interview.
When you're practicing these interview questions, be sure to practice writing them down on paper. You may not have a computer in you interview, so don't get used to having one when you practice.
Not sure how to get started with your coding interview prep? Check out our getting started page here.
Coding Interview Questions by Category
Looking for something specific? Try looking for the best practice coding interview questions for you in one of these categories.
| All Problems | ||
| Easy | Medium | Hard |
| Arrays | Bit Manipulation | Dynamic Programming |
| Graphs | Linked Lists | Queues |
| Recursion | Searching | Sorting |
| Stacks | Strings | Trees |
Not sure what you're looking for? Check out some of our recent coding interview questions.
Coding Interview Question: Median of Arrays
Coding Interview Question: Find the median of two sorted arrays. Click for the solution.
Coding Interview Question: Priority Queue
Coding Interview Question: Implement a priority queue. Click for the solution.
Coding Interview Question: 0-1 Knapsack
Coding Interview Question: Given a list of items, find the maximum value you can generate from the items. Click for the solution.
Coding Interview Question: Matrix Product
Coding Interview Question: Given a matrix, find the path from top left to bottom right with the greatest product. Click for the solution.
Coding Interview Question: Find Duplicates
Coding Interview Question: Given an array of integers where each value 1 <= x <= len(array), write a function that finds all the duplicates in the array. Click for the solution.
Coding Interview Question: Integer to Roman Numerals
Coding Interview Question: Given an integer, write a function to return its roman numeral representation. Click for the solution.
