TCS iON SDE-2 Interview Questions and Answers

Round duration - 30 minutes
Round difficulty - Medium

Q1. 
Remove Consecutive Duplicates Problem Statement
Given a string S, your task is to recursively remove all consecutive duplicate characters from the string.
Input:
String S
Output:
Output string
Constr...read more
Ans. 
Recursively remove consecutive duplicate characters from a string.
• Use recursion to check if the current character is the same as the next character, if so, skip the next character

• Base case: if the string is empty or has only one character, return the string

• Recursive case: if the current character is the same as the next character, call the function recursively with the string excluding the next character
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Round duration - 90 minutes
Round difficulty - Easy

Q1. 
Reverse String Operations Problem Statement
You are provided with a string S and an array of integers A of size M. Your task is to perform M operations on the string as specified by the indices in array A...read more
Ans. 
Perform a series of reverse string operations on a given string based on specified indices.
• Iterate through the array of indices and reverse the substring of the string based on the given indices.

• Ensure to reverse the substring from the starting index to len(S) - starting index - 1.

• Continue the operations in the sequence specified by the array of indices to get the final string.
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Round duration - 50 minutes
Round difficulty - Medium