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Infosys SDE Sheet: Interview Questions and Answers

Last Updated : 12 Feb, 2024
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A multinational information technology company based in India, Infosys Limited offers business consulting, IT, and outsourcing services. Founded in Pune and headquartered in Bangalore, Infosys is India’s second-largest IT company. Many students dream work at Infosys. This sheet will assist you to land a job at Infosys, we have compiled all the interview questions and answers.

Infosys SDE Sheet


Following are the ways Infosys hires On Campus Drives Off Campus Drives Competition like HackwithInfy, Infytq these are the most common jobs Infosys hires for System Engineer Specialist Programmer Digital Specialist Engineer Candidates who are eligible for Infosys recruitment process will go through the following three rounds:

  1. Online Assessment Test: It is divided into some sections with time limits and cutoffs for each. It involves questions to test your reasoning, mathematical and verbal ability, pseudocode, and puzzle-solving skills.
  2. Technical Interview: Generally, technical interview questions are based on your resume. Your field of specialization, projects you’ve worked on, obstacles you’ve faced, and how you overcame them. and generally asked about computer science concepts (like Data structures , Operating systems, Computer networks, DBMS, OOPS ) During this round, your problem-solving skills will also be tested. If you have done internships so be ready to answer the questions revolving around your internships and the role you played in them and what you did.
  3. HR Round: If you pass the technical interview, you will be invited to the HR interview round. In this meeting, topics such as notice periods, salaries, designations, locations, shift timings, etc. are likely to be discussed. and You could also be asked common questions like your background, education, hobbies, and even your view of life. And strengths, weaknesses, etc.

Infosys Syllabus


Why this sheet?

If you are preparing for the Infosys interview, this sheet is just for you. It is a collection of almost all coding interview questions asked historically in Infosys. Questions and answers in this sheet are grouped difficulty-wise with the practice link, and cover all major DSA topics like an array, string, graph, tree, LinkedList, etc.

Infosys InfyTQ: Infosys came up with the Infosys InfyTQ certification Exam (or generally termed as InfyTQ). Now, you must be curious to know what is InfyTQ Exam! InfyTQ is a certification examination that examines your industry readiness by analyzing your knowledge of programming and databases. The best part about InfyTQ is that upon clearing the examination, you get an opportunity to be interviewed directly for a job at Infosys.

Infosys HackWithInfy: HackWithInfy is a competitive coding competition for second-year to pre-final year students across India. In this competition, participants have to solve coding questions in a given time and top performers get a chance to interview Infosys.

Aptitude Ability: Hence, aptitude is no such thing to be afraid of during the placement process but yes it should be paid attention to because it is the screening test and if you don’t get through this then you will be out of the placement process. So here we have 6 sets to practice your aptitude skills.

Verbal Ability:To check your proficiency on English, they will check your grammar knowledge, for we prepared a set of 70 Questions that you can go through.

PseudoCode: A Pseudocode is defined as a step-by-step description of an algorithm. Pseudocode does not use any programming language in its representation instead it uses simple English language text as it is intended for human understanding rather than machine reading.

We have pre

Computer Subjects:

  • Database & Management System: A database is a collection of inter-related data which helps in the efficient retrieval, insertion, and deletion of data from the database and organizes the data in the form of tables, views, schemas, reports, etc.
  • Computer Networks: An interconnection of multiple devices, also known as hosts, that are connected using multiple paths for the purpose of sending/receiving data or media.
  • OOPS Concepts: As the name suggests, Object-Oriented Programming or OOPs refers to languages that use objects in programming. Object-oriented programming aims to implement real-world entities like inheritance, hiding, polymorphism, etc in programming

DataStructure & Algorithms:

  • A data structure is a group of data elements that provides the easiest way to store and perform different actions on the data of the computer. A data structure is a particular way of organizing data in a computer so that it can be used effectively. The idea is to reduce the space and time complexities of different tasks.
  • The word Algorithm means ” A set of rules to be followed in calculations or other problem-solving operations ” Or ” A procedure for solving a mathematical problem in a finite number of steps that frequently by recursive operations “.

You will require DSA to crack the coding rounds of Infosys, here we collected the most asked coding problems in Infosys Interview, all the problems are categorized into three parts, Easy, Medium and Hard as follows.

Easy Coding Problems

Articles Practice
Minimum number whose binary form is not a subsequence of given binary string Solve
How to quickly swap two arrays of same size in C++? Solve
C function to Swap strings Solve
Conversion of whole String to uppercase or lowercase using STL in C++ Solve
Count the number of unique characters in a given String Solve
Sort string of characters Solve
Program for addition of two matrices Solve
Program for subtraction of matrices Solve
Program to multiply two matrices Solve
Efficiently compute sums of diagonals of a matrix Solve
Program for factorial of a number Solve
Program to check the number is Palindrome or not Solve
Binary Search Solve
Next Permutation Solve
Program for Armstrong Numbers Solve
Area of Rectangle, Right Angled Triangle and Circle Solve
Find all angles of a given triangle Solve
Missing characters to make a string Pangram Solve
Program to check if two given matrices are identical Solve
Convert from any base to decimal Solve
Celsius to Fahrenheit Conversion Solve
Print 1 to n without using loops Solve
Middle of Three Solve
Binary representation Solve
Odd or Even Solve
Greatest of three numbers Solve
Number Of Open Doors Solve
Maximum Possible Sum of Products Solve
Check if given four points form a square Solve
Overlapping rectangles Solve
Sum of all prime numbers between 1 and N. Solve
Check if a number is power of another number Solve
Common Divisors Solve
Perfect Number Solve
Parallel or Perpendicular? Solve
Sum Palindrome Solve
XOR play Solve
Triangle shrinking downwards Solve
Pattern of Strings Solve
Y shaped pattern Solve
Display longest name Solve
Remove common characters and concatenate Solve
Check if string is rotated by two places Solve
Check if date is valid Solve
The Lazy Caterer’s Problem Solve
Program to print Sum Triangle for a given array Solve
Remainder Evaluation Solve
Party of Couples Solve
Form largest number from digits Solve
Print the left element Solve
Tidy Number Solve
Mean Solve

Medium Coding Problems

Articles Practice
Minimum number of jumps Solve
Minimize the Heights II Solve
Minimum Platforms Solve
Max length chain Solve
Fractional Knapsack Solve
Job Sequencing Problem Solve
Ishaan Loves Chocolates Solve
Minimum Cost Path Solve
Majority Element Solve
Stock buy and sell Solve
Largest Number formed from an Array Solve

Hard Coding Problems

Articles Practice
0 – 1 Knapsack Problem Solve
Partition Equal Subset Sum Solve
Wildcard Pattern Matching Solve
Form a palindrome Solve
Matrix Chain Multiplication Solve
Count Smaller elements Solve
Minimum number of deletions. Solve
Probability of Knight Solve
Longest Common Substring Solve
Max rectangle Solve
Longest Palindromic Substring Solve
Find all distinct subset (or subsequence) sums Solve
Find all possible palindromic partitions of a String Solve


Puzzles are one of the ways to check your problem-solving skills. These are tricky questions that let you think logically. Try to solve these 20 most popular puzzles asked in Interviews

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