Data Structures & Algorithms Interview Questions

Review this list of 336 Data Structures & Algorithms interview questions and answers verified by hiring managers and candidates.

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Given an array of integers and an integer k, find the number of continuous subarrays whose sum equals k.
3 months ago
Course Schedule
+103 days ago12 answers
Given stock prices for the next n days, how can you maximize your profit by buying or selling one share per day? Has video answer
+122 years ago23 answers
Reverse a linked list in groups of K.
2 months ago
Letter Combinations of a Phone Number
8 months ago
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Given an array of integers, return the pairs with the minimum absolute difference between them.
a year ago2 answers
Write a function to balance parentheses in a given string by removing the fewest characters possible. Ensure that each opening parenthesis has a corresponding closing parenthesis and each pair is properly nested.
2 years ago5 answers
Given a list of items with different sizes, write an algorithm to pack these items into the minimum number of batches without exceeding the capacity of each batch.
2 years ago1 answer
Find peak element in an array
a year ago2 answers
Detect circular dependencies between fields in the CSV data.
5 months ago
Product of Array Except Self Has video answer
+33 months ago74 answers
Most Common Words
5 months ago37 answers
Print the top view of nodes in a binary tree.
a year ago6 answers
Cycle Detection in Package Manager.
9 months ago2 answers
Lexicographic Grid Travel.
a year ago2 answers
Given a binary tree, check if each node is the average of all descendants
a year ago2 answers
Given an array of integers and a number N, find the length of the longest contiguous subarray such that the difference between any two elements in the subarray is less than N.
9 months ago3 answers
Find the Duplicates
6 months ago40 answers
Climbing Stairs
+23 months ago21 answers
Given an m x n grid of characters board and a string word, return true if word exists in the grid.
3 months ago

Showing 41-60 of 336

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Data Structures & Algorithms Interview Questions

Given an array of integers and an integer k, find the number of continuous subarrays whose sum equals k.

Course Schedule

Given stock prices for the next n days, how can you maximize your profit by buying or selling one share per day? Has video answer

Reverse a linked list in groups of K.

Letter Combinations of a Phone Number

Given an array of integers, return the pairs with the minimum absolute difference between them.

Write a function to balance parentheses in a given string by removing the fewest characters possible. Ensure that each opening parenthesis has a corresponding closing parenthesis and each pair is properly nested.

Given a list of items with different sizes, write an algorithm to pack these items into the minimum number of batches without exceeding the capacity of each batch.

Find peak element in an array

Detect circular dependencies between fields in the CSV data.

Product of Array Except Self Has video answer

Most Common Words

Print the top view of nodes in a binary tree.

Cycle Detection in Package Manager.

Lexicographic Grid Travel.

Given a binary tree, check if each node is the average of all descendants

Given an array of integers and a number N, find the length of the longest contiguous subarray such that the difference between any two elements in the subarray is less than N.

Find the Duplicates

Climbing Stairs

Given an m x n grid of characters board and a string word, return true if word exists in the grid.

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