Coding Interview Questions

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

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Rotating the Box
2 years ago
Implement a circular buffer.
2 years ago4 answers
Design a task scheduler in Python.
a month ago9 answers
Given a list of strings, find all strings that encode to the same value using a Caesar Cipher. (A Caesar Cipher rotates characters, e.g. in CC3: a->d, b->e, ..., z->c)
8 months ago1 answer
Given a sequence of credit issuance and usage events, where credits may expire or have usage constraints, write a function to translate the list into the user’s remaining credit pool and total available credits.
a month ago
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Given an array of task durations (in minutes), return the pairs of tasks that can be completed within 60 minutes. For example, for [1, 43, 20, 59, 30, 30], return [[0, 3], [4, 5]].
a year ago2 answers
Given a list of words, find the number of prefix pairs, i.e. pairs i, j where words[i] == words[j] or words[i].startswith(words[j]) or words[j].startswith(words[i]).
2 years ago1 answer
Find the maximum subarray sum.
+124 months ago31 answers
How do you split a machine learning dataset for training, evaluation, and testing? Has video answer
5 years ago3 answers
Sort a binary array in linear time.
+13 months ago7 answers
Find the maximum possible stability of any subset of servers. Return the result modulo 10^9+7. E.g. Consider set of servers where reliability = [1, 2, 2], availability = [1, 1, 3].
a year ago1 answer
Construct a binary tree given its preorder and inorder traversals.
+26 months ago10 answers
Sales Report
2 years ago10 answers
Given a string of parentheses types and an array of their efficiency ratings, write a function to find the most efficient valid parentheses sequence that can be formed. Return its total efficiency score.
a year ago2 answers
Survey Sampling
3 years ago16 answers
Merge k sorted linked lists. Has video answer
+62 years ago13 answers
Determine if two sentences are similar.
4 years ago18 answers
Clone a linked list with a random pointer.
a year ago
Validate IP Address
3 years ago25 answers
Sort a K-Messed Array
2 years ago21 answers

Showing 161-180 of 458

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Coding Interview Questions

Rotating the Box

Implement a circular buffer.

Design a task scheduler in Python.

Given a list of strings, find all strings that encode to the same value using a Caesar Cipher. (A Caesar Cipher rotates characters, e.g. in CC3: a->d, b->e, ..., z->c)

Given a sequence of credit issuance and usage events, where credits may expire or have usage constraints, write a function to translate the list into the user’s remaining credit pool and total available credits.

Given an array of task durations (in minutes), return the pairs of tasks that can be completed within 60 minutes. For example, for [1, 43, 20, 59, 30, 30], return [[0, 3], [4, 5]].

Given a list of words, find the number of prefix pairs, i.e. pairs i, j where words[i] == words[j] or words[i].startswith(words[j]) or words[j].startswith(words[i]).

Find the maximum subarray sum.

How do you split a machine learning dataset for training, evaluation, and testing? Has video answer

Sort a binary array in linear time.

Find the maximum possible stability of any subset of servers. Return the result modulo 10^9+7. E.g. Consider set of servers where reliability = [1, 2, 2], availability = [1, 1, 3].

Construct a binary tree given its preorder and inorder traversals.

Sales Report

Given a string of parentheses types and an array of their efficiency ratings, write a function to find the most efficient valid parentheses sequence that can be formed. Return its total efficiency score.

Survey Sampling

Merge k sorted linked lists. Has video answer

Determine if two sentences are similar.

Clone a linked list with a random pointer.

Validate IP Address

Sort a K-Messed Array

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