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Infosys Pseudocode Question Samples and Tips for Freshers 2025

If you're aiming to excel in the Infosys pseudocode assessment, it's essential to focus on understanding the core concepts and strategies that drive the questions.

Pseudocode problems are designed to evaluate your ability to build logical structures and algorithms without worrying about language-specific syntax.

Key Topics in Infosys Pseudo Code Questions

Search Algorithms:

Linear Search and Binary Search are frequently tested. Questions could ask you to either predict the output of a given pseudo code or complete the missing parts of the algorithm. Understanding the logic behind these search methods and their time complexity is crucial.

Loops & Control Structures:

Expect questions involving loops (like for, while) and conditional statements (if-else). These test your ability to manipulate sequences and handle complex conditions in a simple algorithm. Be prepared to predict outcomes or fill in missing parts of the pseudocode to produce correct results.

Data Structures:

Basic data structures such as Stacks, Queues, and Linked Lists often appear. You may be tasked with writing pseudo code for operations like push, pop, enqueue, or dequeue. Linked list problems might include tasks like insertion, deletion, and traversal.

Sorting Algorithms:

Bubble Sort and Insertion Sort are commonly tested. These questions often require you to complete the pseudocode for sorting an array or determining the missing part of the algorithm to make it functional.

Recursion:

You may encounter problems that require recursive solutions. Understanding how recursion works, including base cases and recursive calls, is essential. Recursion problems test both logical thinking and the ability to work with a divide-and-conquer approach.

Object-Oriented Concepts:

Some questions may touch on object-oriented concepts such as inheritance or polymorphism. You might be given a class structure and asked to predict or write pseudo code that correctly interacts with objects or classes.

Are you looking for coding assessment questions related to Infosys? Click here to access coding practice sessions from moderate to challenging levels.

Top 5 Psuedocode MCQs for Infosys

Question 1: What does the following pseudocode find?

Function FindMaximum(arr):

max_value = arr[0]

FOR i = 1 TO length of arr - 1:

IF arr[i] > max_value THEN

max_value = arr[i]

RETURN max_value

Options:

a) Finds the sum of all elements in the array
b) Finds the maximum element in the array
c) Finds the median of the array
d) Finds the index of the first element greater than the average

Answer: b) Finds the maximum element in the array

Question 2: In the following pseudocode, what will the function return for n = 11?

Function IsPrime(n):

IF n <= 1 THEN

RETURN False

FOR i = 2 TO sqrt(n):

IF n mod i = 0 THEN

RETURN False

RETURN True

Options:

a) True
b) False
c) 11
d) 1

Answer: a) True

Question 3: What is the output of the following pseudocode for arr = [1, 2, 3, 4, 5]?

Function SumArray(arr):

sum = 0

FOR i = 0 TO length of arr - 1:

sum = sum + arr[i]

RETURN sum

Options:

a) 15
b) 10
c) 20
d) 30

Answer: a) 15

Question 4: How many passes will the Bubble Sort algorithm make for an array of size n?

Function BubbleSort(arr):

n = length of arr

FOR i = 0 TO n-1:

FOR j = 0 TO n-i-2:

IF arr[j] > arr[j+1] THEN

Swap arr[j] and arr[j+1]

RETURN arr

Options:

a) n-1 passes
b) n passes
c) 2n passes
d) n^2 passes

Answer: a) n-1 passes

Question 5: What does the following pseudocode return for n = 5?

Function Fibonacci(n):

IF n = 0 THEN

RETURN 0

ELSE IF n = 1 THEN

RETURN 1

a = 0

b = 1

FOR i = 2 TO n:

temp = a + b

a = b

b = temp

RETURN b

Options:

a) 5
b) 8
c) 3
d) 21

Answer: a) 5

Tips for Infosys’ Pseudocode

Practice Writing Pseudo Code: Focus on translating complex algorithms into pseudocode. Don’t just memorise the syntax—focus on understanding how algorithms work and how to represent them logically.
Master Data Structures: Brush up on common data structures and practice their implementation using pseudo code. Being able to quickly recognise the type of problem will save time during the exam.
Work on Time and Space Complexity: Understand the time and space complexities of the algorithms you practice. This can help you choose the most efficient approach when answering questions.
Solve Mock Problems: Use online platforms that simulate coding assessments similar to what you might encounter in the Infosys exam.

Conclusion

Infosys pseudocode questions are a critical part of their technical assessments, and mastering them requires a clear understanding of algorithms, data structures, and logical reasoning. By regularly practising pseudo code, analysing common problem types, and understanding underlying concepts, you can improve your problem-solving skills and enhance your performance in the Infosys recruitment process.

Frequently Asked Questions (FAQs)

1. What are the most common topics for Infosys pseudocode questions?

Common topics include search algorithms, sorting algorithms, basic data structures (linked lists, stacks, queues), loops, and recursion.

2. How can I improve my pseudocode skills for Infosys?

Regular practice is key. Focus on understanding algorithms and data structures and practice writing pseudo code instead of focusing on specific programming languages.

3. Is it necessary to know a programming language to solve pseudocode problems?

No, pseudocode is language-agnostic. The goal is to test your problem-solving and logical reasoning skills, not your knowledge of programming languages.

4. How do I know if my pseudocode is correct?

Practice with a variety of problems and validate your solutions using test cases. Also, focus on logic flow and efficiency.

5. Where can I find Infosys pseudocode practice questions?

You can search for online platforms that provide free coding practice questions specifically designed for Infosys assessments.

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