Coding Interview Questions

Review this list of 458 Coding interview questions and answers verified by hiring managers and candidates.

+ Share interview

Find a triplet in an array with a given sum. Has video answer
+32 years ago25 answers
Given a hierarchical file system with inherited and overridden permissions, write a function to determine whether a user has access to a file at a specific time.
2 months ago
Session Data Analysis.
10 months ago6 answers
Explain the differences between stack and heap memory allocation.
3 years ago2 answers
Given an array with objects colored red, white, or blue, sort them so those of the same color are adjacent. Use integers 0, 1, 2 to represent RWB respectively.
a year ago2 answers
Get your questions answered
Our question database is made possible by user contributions. What were you asked in your most recent interview?
Share
Implement an iterator class that supports next, hasNext, getState, and setState, then extend it to treat a list of iterators as one continuous iterator with a global index.
a month ago
Lowest Earning Employees
22 answers
Linked List Cycle
+22 years ago19 answers
Given a nested merchandise catalog dictionary, extract attributes for a specific item and traverse related items recursively to build the full relationship tree.
7 months ago
Implement inorder traversal for an N-ary tree.
2 years ago1 answer
Project Budgets
3 years ago26 answers
Marketing Channel Attribution
10 months ago14 answers
Debug and extend a Python codebase by adding an async exponential retry mechanism with timeouts and backoff so failures are retried until success.
7 months ago
Items on Sale
3 years ago22 answers
Implement K-Means Clustering Has video answer
4 answers
Find the maximum product of any two integers in an array.
5 years ago11 answers
Given an integer, reverse it. Integers are within range [-2^15, 2^15 - 1].
a year ago1 answer
Maximum Profit
4 months ago26 answers
Write a function to return all prime numbers up to a given number n.
+12 years ago12 answers
Here’s a user-journey flowchart, the command-line output at each step, and the code. Can you identify the bugs causing the errors and fix them?
9 months ago

Showing 121-140 of 458

Popular roles

Software Engineer Data Engineer Machine Learning Engineer Data Scientist Data Analyst

Interviewed recently?

Help improve our question database (and earn karma) by telling us about your experience

+ Share interview experience

Trending companies

Coding Interview Questions

Find a triplet in an array with a given sum. Has video answer

Given a hierarchical file system with inherited and overridden permissions, write a function to determine whether a user has access to a file at a specific time.

Session Data Analysis.

Explain the differences between stack and heap memory allocation.

Given an array with objects colored red, white, or blue, sort them so those of the same color are adjacent. Use integers 0, 1, 2 to represent RWB respectively.

Implement an iterator class that supports next, hasNext, getState, and setState, then extend it to treat a list of iterators as one continuous iterator with a global index.

Lowest Earning Employees

Linked List Cycle

Given a nested merchandise catalog dictionary, extract attributes for a specific item and traverse related items recursively to build the full relationship tree.

Implement inorder traversal for an N-ary tree.

Project Budgets

Marketing Channel Attribution

Debug and extend a Python codebase by adding an async exponential retry mechanism with timeouts and backoff so failures are retried until success.

Items on Sale

Implement K-Means Clustering Has video answer

Find the maximum product of any two integers in an array.

Given an integer, reverse it. Integers are within range [-2^15, 2^15 - 1].

Maximum Profit

Write a function to return all prime numbers up to a given number n.

Here’s a user-journey flowchart, the command-line output at each step, and the code. Can you identify the bugs causing the errors and fix them?

Explore questions by company

Explore questions by role

Follow Us