TCS interview practice
TCS Coding Interview Questions and Programming Practice Start with verified evidence.
Practice from 4 TCS-tagged public coding problems, organized only by the stage, topic, difficulty, and recency metadata FastPrep can verify.
- Catalog
- 4 public practice assets (4 coding)
- Start here
- Use the stage named in your invitation
- Evidence
- OA metadata, shown in context
OA practice path
Online Assessment
Build a timed implementation rhythm from prompt to edge cases. Problems are ranked by repeated public catalog sightings.
4 TCS-tagged Online Assessment problems available.
| Company | Problem | Difficulty | Public evidence | Action |
|---|---|---|---|---|
TCTCS | Count Array InversionsArraySorting | Medium | 1 public reportLast reported Aug 2026 | Practice |
TCTCS | Count Smaller Prior ElementsArraySegment Tree | Medium | 1 public reportLast reported Aug 2026 | Practice |
TCTCS | Array Rank TransformArrayHash Table | Easy | 1 public reportLast reported Jul 2026 | Practice |
TCTCS | Gym Fees Calculator | Unrated | 1 public reportLast reported Mar 2026 | Practice |
01 · Preparation plan
Compare static ordering with incremental rank information.
TCS's compact public coding set is concentrated in ordering and counts. Rank transformation, inversions, and smaller-prior-element queries make a coherent progression from static sorting to maintained order statistics. The page does not claim comprehensive coverage of any current TCS recruitment program or assessment version. This is a suggested practice sequence, not the employer's interview process. Your invitation and recruiter guidance remain the source of truth.
- 01
Compress values into ordered ranks
Use rank transformation to preserve relative order while removing irrelevant numeric gaps. Equal values must receive the same compressed rank.
- Test negative and repeated values.
- Keep original positions for output.
- Define whether ranks begin at zero or one.
- 02
Count cross-boundary inversions
Inversion counting is useful for augmenting merge sort with a contribution calculation. A merge decision can account for several pairs at once.
- Define the strict comparison for duplicates.
- Test sorted and reverse-sorted arrays.
- Use a wide counter for large inputs.
- 03
Maintain counts as elements arrive
The smaller-prior-elements exercise changes a static count into an online prefix query. Coordinate compression and a cumulative-count structure can separate value range from input size.
- Query before inserting the current value.
- Distinguish smaller from smaller-or-equal.
- Check a sequence of identical values.
02 · Evidence boundary
What “TCS interview questions” means here.
It means practicing transferable implementation, testing, and technical reasoning with public catalog assets FastPrep tags to TCS. It does not mean FastPrep has access to the company's assessments or any private interview bank.
Repeated public sightings and last-reported dates can help you prioritize practice, but they cannot predict the questions, format, or platform in a specific interview.
- Only TCS-tagged FastPrep catalog problems appear above.
- Stage labels and report dates remain visible as context.
- No official, private, leaked, or proprietary questions are claimed.
03 · Plain answers
TCS interview practice questions, answered plainly.
This page owns technical-practice intent for TCS. Hiring activity, timelines, and market signals remain on the separate hiring-insights page.
01Is this an exact TCS NQT or other recruitment-test simulation?
No. The available company-tagged exercises establish a focused programming practice set, not a current program's full syllabus, scoring, timing, or question order. Use the employer's official test instructions and treat this page as supplementary technical preparation.
02Is FastPrep affiliated with TCS?
No. FastPrep is an independent interview-preparation product and is not affiliated with TCS. The page uses FastPrep's public practice catalog and does not claim official, private, leaked, or proprietary employer questions.
03How are TCS problems assigned to interview stages?
Stage labels come from FastPrep's public problem metadata. A problem can carry more than one reported stage, and hiring processes can change by role, level, location, and date. Treat the labels as preparation context, not a guarantee.
04Which TCS interview stage should I practice first?
Start with the stage named in your invitation or recruiter message. If no stage is known, use the largest available set to build general problem-solving fluency, then rehearse explanation and testing separately.
05Does this page predict the TCS interview process?
No. Public catalog counts, stage tags, and last-reported dates can help prioritize practice, but they cannot predict a specific interview's questions, sequence, timing, or platform.
Your next stage, made concrete
Pick a problem. Solve it end to end.
Start with the stage named in your invitation, then use public evidence as context—not as a promise of what you will be asked.
Open the practice set