Centre for Development of Advanced Computing Associate Professional Interview Questions and Answers

Round duration - 50 Minutes
Round difficulty - Medium

Round done by video call. Duration was 50 minutes. Total were 2 persons taking interview. They mostly asked questions related to Data Structure like OOPS and Stack. Later they start asking SQL queries and Machine Learning Questions.

Q1. 
Add Two Numbers Represented as Linked Lists
Given two linked lists representing two non-negative integers, where the digits are stored in reverse order (i.e., starting from the least significant digit to ...read more
Ans. 
Add two numbers represented as linked lists in reverse order and return the sum as a linked list.
• Traverse both linked lists simultaneously, adding corresponding digits along with carry from previous sum.

• Handle cases where one list is longer than the other by considering carry.

• Create a new linked list to store the sum digits in reverse order.

• Remember to handle the case where there is a carry after adding all digits.
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Round duration - 30 Minutes
Round difficulty - Easy

Tech + HR round

Q1. 
Remove Duplicates from String Problem Statement
You are provided a string STR of length N, consisting solely of lowercase English letters.
Your task is to remove all duplicate occurrences of characters i...read more
Ans. 
Remove duplicate occurrences of characters in a given string of lowercase English letters.
• Iterate through the string and keep track of characters seen so far using a set.

• Append characters to a new string only if they are not already in the set.

• Return the new string without duplicate characters.
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