Tcs Coding Interview Questions (2026)
Most-reported questions and how to practice them
240 coding questions reported by candidates for Tcs, sorted by how often they were reported. Source: community-sourced LeetCode company lists.
What the Tcs question data shows
Of the 240 questions reported for Tcs, 47% are medium, 9% are hard and 44% are easy. The most reported are Friday Purchases I, Two Sum, Longest Palindromic Substring, Palindrome Number, Maximum Subarray.
This list comes from community-sourced LeetCode company lists. It covers coding questions only. It does not tell us how many rounds Tcs runs, what each round covers, or what it pays, and those change by role, level and team, so we do not list them. Ask your recruiter what each round covers, and check the company's careers page.
Prepare for the rest of the loop with the coding interview patterns guide, the system design framework, and the STAR method guide. Written by Kieron.
Practice what you read with a free AI mock interview, see how the tools compare in our AI interview copilot comparison, or check Aissence pricing.
Tcs Interview Questions
240 LeetCode questions — sorted by frequency. Question frequency is community-sourced from public interview reports and may not reflect the current process; verify details with the employer.
Last reviewed: September 5, 2026 · Source: LeetCode company-wise interview questions (community reports) · Reviewed by the Aissence Editorial Team.
Friday Purchases I
Two Sum
Longest Palindromic Substring
Palindrome Number
Maximum Subarray
Move Zeroes
Longest Substring Without Repeating Characters
Reverse Integer
Container With Most Water
Longest Common Prefix
3Sum
Remove Duplicates from Sorted Array
Find the Index of the First Occurrence in a String
Valid Parentheses
Jump Game
Sort Colors
Best Time to Buy and Sell Stock
Single Number
Majority Element
Second Highest Salary
Tips for Success at Tcs
Start with the 30 most reported Tcs questions, then work down the list.
Mediums are the bulk of the list (47%), so spend most of your time there.
Time yourself: 20 to 30 minutes per medium, then explain your solution out loud as if to an interviewer.
After each problem write down the pattern and the signal that revealed it. Patterns transfer to problems you have not seen.
Pair coding practice with a system design framework and prepared behavioral stories; most loops include more than coding.
How to Practice for Tcs Interviews
Practice answering out loud with an AI interviewer built from your resume and the job description, and get a score and specific fixes for each answer. We are not affiliated with Tcs, and the mock interview is general practice rather than a simulation of Tcs's own format.
- ✓ Free mock interview built from your resume and the job description
- ✓ Desktop Interview Copilot for live interviews, where the rules allow it
- ✓ Behavioral practice with feedback on structure and specifics
- ✓ System design practice with follow-up questions
Frequently Asked Questions
How many LeetCode questions should I practice for Tcs?
Are these the actual Tcs interview questions?
What is the difficulty mix for Tcs?
What is the Tcs interview process?
How do I prepare beyond coding questions?
Prepare for Your Tcs Interview
Run a free mock interview from your resume and see where your answers need work.
Start Preparing Free