Cognizant Software Developer Interview Questions, Process, and Tips

Round duration - 60 Minutes
Round difficulty - Easy

It was an aptitude + ds+ os mcq. And 1 coding question

Q1. 
Pair Sum Problem Statement
Given an integer array ARR of size N and an integer S, your goal is to return a list of all pairs of elements such that the sum of elements of each pair equals S.
Example:
Inp...read more
Ans. 
Given an array of integers, find pairs whose sum equals a given integer S.
• Iterate through the array and for each element, check if the complement (S - current element) exists in a hash set.

• If the complement exists, add the pair to the result list.

• Sort the pairs based on the rules mentioned in the question.
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Round duration - 60 Minutes
Round difficulty - Easy

It was an technical round.
In the technical, they asked me to introduce myself and I gave the usual introduction of 1-2 minutes. 

Then they asked me about my preference for programming language and I said C++. 
Then they asked me to write a program for star pattern and they asked a few more questions about C++. 
They also asked about my branch and asked related to that question. They asked questions on oops, dbms and os.

Q1. 
Star Pattern Problem Explanation
Given a non-negative integer 'N', print a star pattern according to the specified format.
Input:
N (Total no. of rows)
Output:
Pattern in N lines
Example:
Consider N...read more
Ans. 
Print a star pattern based on the given non-negative integer 'N'.
• Iterate from 1 to N and print '*' in each row with increasing count

• Use nested loops to print spaces before the '*' in each row

• Ensure to print the correct number of spaces before the '*' in each row

• Handle the edge case where N is 0 separately
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