Coding Interview Questions

Review this list of 515 Coding interview questions and answers verified by hiring managers and candidates.

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Find the minimum total cost to supply water to all the houses in a village. Has video answer
Find the shortest subsequence of a cyclic string S that contains all characters of a pattern k.
2 years ago1 answer
Given a collection of rooms where Alibada is in one and moves one room a day to an adjacent room, write a program to determine if you can find Alibada with the given list of rooms.
4 years ago2 answers
Find the shortest path in a graph.
4 months ago3 answers
What are virtual functions?
2 years ago2 answers
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Explain callback functions.
2 years ago1 answer
Given a list of strings, find the number of occurrences of the second letter of the first word, and return the character and its count.
6 months ago1 answer
Determine a ship's capacity to ship packages in D days.
3 years ago
Design a distributed training system across hundreds of nodes.
9 months ago
Given an integer n, return the number of steps to reach 1 following these rules: if n is even, divide by 2; if odd, multiply by 3 and add 1.
2 years ago1 answer
Find Customers by Department
2 years ago4 answers
Find all permutations of a given string.
5 years ago2 answers
Remove duplicates in an array of objects.
a year ago
Given a Directed Acyclic Graph (DAG), write a function to return the length of the longest path.
2 months ago
Given an array of points on a plane (x,y), write a function to return the distance between the closest pair of points.
2 years ago1 answer
Implement a method to convert an integer to a string of bytes without using built-in helper functions.
6 months ago
Calculate the minimum number of turns required to open a lock. Has video answer
Determine if an array of integers from 1 to n contains a duplicate in constant time and space.
2 years ago2 answers
Review the given code for a React.js based Tic-tac-toe game written in Typescript and suggest improvements.
2 years ago1 answer
Given a number of courses and a list of prerequisite pairs, return true or false depending on whether it is possible to finish all courses.
8 months ago

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Coding Interview Questions

Find the minimum total cost to supply water to all the houses in a village. Has video answer

Find the shortest subsequence of a cyclic string S that contains all characters of a pattern k.

Given a collection of rooms where Alibada is in one and moves one room a day to an adjacent room, write a program to determine if you can find Alibada with the given list of rooms.

Find the shortest path in a graph.

What are virtual functions?

Explain callback functions.

Given a list of strings, find the number of occurrences of the second letter of the first word, and return the character and its count.

Determine a ship's capacity to ship packages in D days.

Design a distributed training system across hundreds of nodes.

Given an integer n, return the number of steps to reach 1 following these rules: if n is even, divide by 2; if odd, multiply by 3 and add 1.

Find Customers by Department

Find all permutations of a given string.

Remove duplicates in an array of objects.

Given a Directed Acyclic Graph (DAG), write a function to return the length of the longest path.

Given an array of points on a plane (x,y), write a function to return the distance between the closest pair of points.

Implement a method to convert an integer to a string of bytes without using built-in helper functions.

Calculate the minimum number of turns required to open a lock. Has video answer

Determine if an array of integers from 1 to n contains a duplicate in constant time and space.

Review the given code for a React.js based Tic-tac-toe game written in Typescript and suggest improvements.

Given a number of courses and a list of prerequisite pairs, return true or false depending on whether it is possible to finish all courses.

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