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Open practiceInfosys interview practice
Infosys Coding Interview Questions and Programming Practice Start with verified evidence.
Practice from 36 Infosys-tagged public coding problems, organized only by the stage, topic, difficulty, and recency metadata FastPrep can verify. The broader public catalog also includes 4 system-design exercises.
- Catalog
- 40 public practice assets (36 coding)
- Start here
- Use the stage named in your invitation
- Evidence
- OA · Phone · Onsite 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.
| Company | Problem | Difficulty | Public evidence | Action |
|---|---|---|---|---|
INInfosys | Count Equal-Distinct Character PartitionsDynamic ProgrammingSliding Window | Hard | 1 public reportLast reported Oct 2026 | Practice |
INInfosys | Maximum Alternating-Index Packet ValueGreedySorting | Medium | 1 public reportLast reported Oct 2026 | Practice |
INInfosys | Usable Water with Contaminated PillarsTwo PointersArray | Medium | 1 public reportLast reported Oct 2026 | Practice |
INInfosys | Count Reachable Values by Halving and DecrementingBreadth-First SearchHash Table | Medium | 1 public reportLast reported Sep 2026 | Practice |
INInfosys | Minimum Paid Swaps to Group Ones and TwosArrayGreedy | Medium | 1 public reportLast reported Sep 2026 | Practice |
INInfosys | Maximum Purchases with a Cooler-Bag FeeArrayGreedy | Medium | 1 public reportLast reported Aug 2026 | Practice |
INInfosys | Count Valid A-B-C Sequences Under a Modulo-Four RuleDynamic ProgrammingMath | Hard | 1 public reportLast reported Aug 2026 | Practice |
INInfosys | Maximum Product of a Strictly Increasing Contiguous SubarrayArrayDynamic Programming | Medium | 1 public reportLast reported Aug 2026 | Practice |
INInfosys | Minimum Cost to Assign Candidates to Two CitiesArrayGreedy | Medium | 1 public reportLast reported Aug 2026 | Practice |
INInfosys | Maximum Subarray Sum After Swaps | Unrated | 1 public reportLast reported Feb 2026 | Practice |
INInfosys | Find Number of Good Subsequences 🍅Dynamic ProgrammingCombinatorics | Hard | 1 public reportLast reported Apr 2024 | Practice |
INInfosys | Number of Unique Elements After Modifications 🍁ArrayPrefix Sum | Medium | 1 public reportLast reported Mar 2024 | Practice |
INInfosys | Obtain Maximum Score Using Minimum SwapsGreedySorting | Medium | 1 public reportLast reported Feb 2024 | Practice |
INInfosys | Extract CardsGreedyArray | Hard | 1 public reportLast reported Feb 2024 | Practice |
Phone practice path
Phone Screen
Practice solving while explaining assumptions, tradeoffs, and complexity. Problems are ranked by repeated public catalog sightings.
| Company | Problem | Difficulty | Public evidence | Action |
|---|---|---|---|---|
INInfosys | Swap Two Gender ValuesDatabase | Easy | 1 public reportLast reported Oct 2026 | Practice |
INInfosys | Second-Highest Distinct SalaryDatabase | Easy | 1 public reportLast reported Sep 2026 | Practice |
Onsite practice path
Onsite
Practice complete solutions and defend the choices behind them. Problems are ranked by repeated public catalog sightings.
20 Infosys-tagged Onsite problems available.
| Company | Problem | Difficulty | Public evidence | Action |
|---|---|---|---|---|
INInfosys | Tenth-Highest Distinct SalaryDatabase | Medium | 2 public reportsLast reported Oct 2026 | Practice |
INInfosys | Maximize the Even-Odd Index Product GapArrayMath | Medium | 1 public reportLast reported Oct 2026 | Practice |
INInfosys | Minimum Nonadjacent Flips for an Alternating Binary StringStringGreedy | Medium | 1 public reportLast reported Oct 2026 | Practice |
INInfosys | Assign Cookies With Matching ParityArrayGreedy | Medium | 1 public reportLast reported Sep 2026 | Practice |
INInfosys | Count Equal Code Pairs Within Distance KArrayHash Table | Medium | 1 public reportLast reported Sep 2026 | Practice |
INInfosys | Daily Successful Transactions Per DepartmentDatabase | Easy | 1 public reportLast reported Sep 2026 | Practice |
INInfosys | Detect Substring In Any RotationString | Easy | 1 public reportLast reported Sep 2026 | Practice |
INInfosys | Enumerate All SubsequencesStringBacktracking | Medium | 1 public reportLast reported Sep 2026 | Practice |
INInfosys | Longest Substring Without Repeating CharactersStringSliding Window | Medium | 1 public reportLast reported Sep 2026 | Practice |
INInfosys | Product Of Array Except SelfArrayPrefix Sum | Medium | 1 public reportLast reported Sep 2026 | Practice |
INInfosys | Filter Excel Employee Records with PandasDatabase | Easy | 1 public reportLast reported Sep 2026 | Practice |
INInfosys | Sort ColorsArraySorting | Medium | 1 public reportLast reported Aug 2026 | Practice |
INInfosys | Top K Frequent ElementsArrayHash Table | Medium | 1 public reportLast reported Aug 2026 | Practice |
INInfosys | Top-K Salaries Per DepartmentDatabase | Medium | 1 public reportLast reported Aug 2026 | Practice |
INInfosys | Swap Two Numbers Without a Third VariableBit Manipulation | Easy | 1 public reportLast reported Aug 2026 | Practice |
INInfosys | Merge Two Sorted Arrays In PlaceArraySorting | Hard | 1 public reportLast reported Jul 2026 | Practice |
INInfosys | Minimum Coins for a TargetDynamic Programming | Medium | 1 public reportLast reported Jul 2026 | Practice |
INInfosys | Sort Sentence WordsStringSorting | Easy | 1 public reportLast reported Jul 2026 | Practice |
INInfosys | Minimum Path Sum With Grid Switches | Unrated | 1 public reportLast reported May 2026 | Practice |
INInfosys | Null-Safe Full NameDatabase | Easy | 1 public reportLast reported Jan 2026 | Practice |
01 · Preparation plan
Progress from array invariants to constrained counting.
The Infosys set supports a gradual move from basic array operations to optimization and counting. Keep the general programming intent distinct from named recruitment programs: a company tag does not prove that an exercise belongs to a particular test version or specialist hiring track. This is a suggested practice sequence, not the employer's interview process. Your invitation and recruiter guidance remain the source of truth.
- 01
Maintain three array regions
Sort Colors is a focused invariant exercise: describe which regions are complete and which remain unclassified before moving a pointer.
- Test one color and alternating colors.
- Do not skip an unexamined swapped value.
- Explain the constant-space requirement.
- 02
Compare assignment differences
Use two-city assignment to reason about opportunity cost. The useful comparison is not each absolute cost but the cost of changing a candidate's destination.
- State the required capacity of each city.
- Test equal cost differences.
- Prove why the chosen ordering minimizes total cost.
- 03
Compress history into remainder states
The A-B-C sequence exercise is a way to practice counting under modular restrictions without enumerating every sequence.
- Define the state and legal transitions.
- Check short sequences by hand.
- Distinguish the rule's modulus from the answer modulus.
02 · Broader technical practice
Practice beyond standalone coding questions.
These public Infosys-tagged exercises cover additional technical formats. They are included only when a verified catalog record and a crawlable practice page both exist.
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Open practice03 · Evidence boundary
What “Infosys interview questions” means here.
It means practicing transferable implementation, testing, and technical reasoning with public catalog assets FastPrep tags to Infosys. 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 Infosys-tagged FastPrep catalog problems appear above.
- Stage labels and report dates remain visible as context.
- No official, private, leaked, or proprietary questions are claimed.
04 · Plain answers
Infosys interview practice questions, answered plainly.
This page owns technical-practice intent for Infosys. Hiring activity, timelines, and market signals remain on the separate hiring-insights page.
01Is this an exact Infosys recruitment-test question bank?
No. These are public company-tagged practice assets. They do not establish a current test's question order, scoring, duration, or program-specific syllabus. Use them to strengthen implementation and reasoning, then follow the official instructions for the particular Infosys role or recruitment program you entered.
02Is FastPrep affiliated with Infosys?
No. FastPrep is an independent interview-preparation product and is not affiliated with Infosys. The page uses FastPrep's public practice catalog and does not claim official, private, leaked, or proprietary employer questions.
03How are Infosys 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 Infosys 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 Infosys 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