Cognizant GenC Next Coding Questions and Answers for Freshers 2025

For freshers aspiring to make a mark in the corporate IT sector, Cognizant's GenC Next program is a gateway to a rewarding career. The program's coding round is a pivotal stage that evaluates your technical prowess, logical thinking, and problem-solving capabilities. 

This article will walk you through every aspect of the coding test, offering valuable insights, tips, and resources to help you ace the challenge.

Overview of Cognizant GenC Next Coding Round

The coding round is strategically designed to identify candidates with strong analytical and programming skills. Here's what you can expect:

Key Topics to Prepare for Cognizant GenC Next Coding 

Focusing on these topics will enhance your chances of success:

1. Data Structures
• Arrays, Linked Lists, Stacks, Queues
• Trees (Binary, BST), Graphs
2. Algorithms
• Sorting and Searching Algorithms (QuickSort, MergeSort)
• Dynamic Programming, Greedy Algorithms
3. Problem-Solving Techniques
• Optimisation Problems
• Real-life Scenarios
4. Programming Concepts
• Object-Oriented Programming (OOP) Principles
• Recursion and Iterative Solutions
5. Logical and Analytical Reasoning
• Coding Puzzles
• Pattern Recognition Problems

Cognizant GenC Next Coding Questions & Solution

Problem Statement 1

There are N suns in a galaxy, each sun has M planets, each of the M planets have some number of moons, denoted by galaxy(i)(j), where galaxy(i)(j) denotes the number of moons of the jth planet having the ith sun.

Your task is to determine the maximum number of moons in any solar system. For each sun, calculate the total number of moons across all its planets and output the highest total number of moons found in a single solar system.

Input Format

The first line of input contains two space-separated integers, N and M, representing the number of suns and the number of planets per sun, respectively.

The next N lines of input contains M space separated integers, representing the number of moons for each planet around the respective sun.

Output Format

Display a single integer denoting the maximum total number of moons in a solar system (i.e., across all planets orbiting the same sun).

Solution C++

Solution Java

Solution Python

Problem Statement 2

Melisa likes the XOR operation very much. Recently, her teacher gave her a beautiful array A = [a1, a2, ..., an], where N is the size of the array, and asked her to find the XOR of all XOR values of all possible subarrays. Subarray XORs are the XOR values of all possible subarrays of the array A.

Your task is to compute the XOR of all these subarray XOR values.

Input Format

The first line of input consists of the integer N representing the size of an array.

The second line contains N space-separated integers representing the elements of the array.

Output Format

Print the XOR of all XOR values of all possible subarrays.

Solution C++

Solution Java

Solution Python

Problem Statement 3

You are an agent, to stop an attack you have to decipher a piece of encrypted code. The encrypted code contains two lines, each containing a sequence of characters. You know that to decipher the code, you have to merge the two lines by adding characters in alternating sequences. Finally, if one sequence is longer than the other, append it to the end.

Help the agent decrypt the code as soon as possible. 

Input Format

The first line of the input contains an integer n  — the size of the first sequence.

The second line of the input contains the first sequence.

The third line of the input contains an integer m  — the size of the second sequence.

The fourth line of the input contains the second sequence.

Output Format

Print the decoded sequence of characters.

Solution C++

Solution Java

Solution Python

Problem Statement 4

Given an array arr, your task is to replace each element in the array with the greatest element among the elements to its right. The last element of the array should be replaced with -1 since there are no elements to its right. The function should return the modified array after these transformations.

Input Format

The first line contains an integer N, representing the size of the array.

The second line contains N space-separated integers representing the elements of the array.

Output Format

A single line containing the elements of the modified array, with each element replaced by the greatest element among the elements to its right and the last element replaced by -1.

Solution C++

Solution Java

Solution Python

Problem Statement 5

A toy manufacturing factory produced N toys in a day. The manager has a list of product IDs and another list containing the sizes of the corresponding toys, each of length N. In other words, the i-th integer in the product IDs list represents the product ID of the i-th toy, and the i-th integer in the sizes list represents the size of the i-th toy.

However, the manager accidentally combined these lists by placing the product IDs list in front of the sizes list, resulting in a single list of 2N elements.

You are an employee, and the manager wants you to recover the data and present it as another list of 2N elements such that the product ID of each toy is followed by its size.

Input Format

The first line of the input contains a single integer N, representing the number of toys produced.

The second line contains 2*N space-separated integers representing the merged list given to you by the manager.

Output Format

Print 2*N space-separated integers representing the list wanted by the manager

Solution C++

Solution Java

Solution Python

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

Preparation Strategies for Cognizant GenC Next Coding 

• Understand the Basics: Strengthen your fundamentals in programming and data structures.
• Practice Daily: Solve problems on available online platforms to improve coding skills while effectively managing time.
• Mock Tests: Simulate the coding test environment to improve time management.
• Analyse Past Trends: Review question patterns from previous years for familiarity.
• Learn Debugging: Familiarize yourself with debugging tools to spot errors quickly.

Conclusion

The Cognizant GenC Next coding round is a test of both your programming expertise and logical thinking. With proper preparation, consistent practice, and a strategic approach, you can excel in this round and move closer to landing your dream job at Cognizant.

Use this guide to steer your preparation in the right direction and embrace the challenges of the coding round with confidence. Good luck!

Frequently Asked Questions (FAQs)

1. What programming languages are accepted?

You can use Python, Java, C++, or JavaScript during the test.

2. What is the best way to prepare for dynamic programming questions?

Practice common DP problems like the Knapsack problem and the Fibonacci sequence.

3. Are the coding questions evaluated automatically?

Yes, most coding tests use automated platforms to evaluate your code for correctness and efficiency.

4. Can I attempt all questions in any order?

Generally, you can choose the order, but it’s wise to tackle simpler problems first.

5. How much weight does the coding round carry in the selection process?

The coding round is crucial as it showcases your technical skills and determines your progression to further rounds.

Disclaimer: While we strive for accuracy, we do not guarantee its completeness or reliability. Readers are encouraged to verify all facts and statistics from the official company website or check independently before making decisions.

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