Coding Interview Questions

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

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Longest Increasing Subsequence
a year ago1 answer
Permutations
+2a month ago8 answers
Find the equilibrium index in an array where sum of elements to the left is equal to sum of elements to the right.
a year ago1 answer
Implement a time-based key value store with set and get, plus extra methods.
6 months ago
Top Customer by Orders
2 years ago8 answers
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Shortest Cell Path
3 years ago14 answers
Predict User App Deletion Has video answer
3 answers
Find the largest perimeter of an island given a two-dimensional array of 1's and 0's representing land and water.
2 years ago1 answer
Write a function to print 1 to n without using a loop.
2 years ago2 answers
Leetcode 227: Given a string containing non-negative integers, mathematical operators, and spaces, implement a basic calculator to evaluate the expression.
9 months ago
You're given a time-based key-value store that keeps having new key-value pairs added. Implement a windowed average.
a year ago1 answer
Find duplicate files in a file system. Has video answer
4 months ago1 answer
Given a list of sentences, find the top n most frequent words.
2 years ago1 answer
Implement BFS traversal.
a year ago
Write a function that takes an array of integers and checks for duplicate values in any contiguous window of size N.
2 years ago1 answer
Implement @ tagging like Teams/Slack.
7 months ago
Initial Contact Attribution
2 years ago7 answers
Find Statistical Evidence for Conversion Rate Has video answer
1 answer
Implement the power function without using pow method or or exponentiation operator.
a year ago
Consecutive Logins
3 years ago4 answers

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Coding Interview Questions

Longest Increasing Subsequence

Permutations

Find the equilibrium index in an array where sum of elements to the left is equal to sum of elements to the right.

Implement a time-based key value store with set and get, plus extra methods.

Top Customer by Orders

Shortest Cell Path

Predict User App Deletion Has video answer

Find the largest perimeter of an island given a two-dimensional array of 1's and 0's representing land and water.

Write a function to print 1 to n without using a loop.

Leetcode 227: Given a string containing non-negative integers, mathematical operators, and spaces, implement a basic calculator to evaluate the expression.

You're given a time-based key-value store that keeps having new key-value pairs added. Implement a windowed average.

Find duplicate files in a file system. Has video answer

Given a list of sentences, find the top n most frequent words.

Implement BFS traversal.

Write a function that takes an array of integers and checks for duplicate values in any contiguous window of size N.

Implement @ tagging like Teams/Slack.

Initial Contact Attribution

Find Statistical Evidence for Conversion Rate Has video answer

Implement the power function without using pow method or or exponentiation operator.

Consecutive Logins

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