This question is a key problem for testing your understanding of matrix, arrays, hash-table. View the full solution and explanation on PrepLinc .

This question is a key problem for testing your understanding of dynamic-programming, recursion, memoization. View the full solution and explanation on PrepLinc .

This question is a key problem for testing your understanding of dynamic-programming, matrix. View the full solution and explanation on PrepLinc .

This question is a key problem for testing your understanding of matrix, math. View the full solution and explanation on PrepLinc .

This question is a key problem for testing your understanding of stack, monotonic-stack, sorting. View the full solution and explanation on PrepLinc .

This question is a key problem for testing your understanding of matrix, simulation. View the full solution and explanation on PrepLinc .

This question is a key problem for testing your understanding of cycle-detection, linked-list, two-pointers. View the full solution and explanation on PrepLinc .

This question is a key problem for testing your understanding of arrays, math. View the full solution and explanation on PrepLinc .

This question is a key problem for testing your understanding of hash-table, arrays. View the full solution and explanation on PrepLinc .

What types of DSA questions are on this page?

This page contains a curated list of Data Structures and Algorithms (DSA) questions frequently asked in technical interviews at top tech companies. It covers topics like Arrays, Strings, Linked Lists, Trees, Graphs, and Dynamic Programming.

How can I find questions for my specific skill level?

Use the 'Stage' filter to select your preparation level—from 'Just Starting' to 'Placement Season'. This helps you focus on problems that are challenging but not overwhelming.

Are the solutions to these DSA questions available?

Yes, each question is linked to a detailed solution and explanation. We encourage you to try solving the problem yourself first, then review the solution to understand the optimal approach.

Arrays String Linked List Hashing Binary Trees Graphs Sorting Recursion Backtracking Dynamic Programming Sliding Window System Design Operating Systems Object Oriented Programming (OOP)

DSA Interview Question Bank

Practice with real DSA problems from verified student interviews. Stop using random online questions and start preparing with what companies are *actually* asking.

Topic

Stage

Set Matrix Zeroes