Vestian Global Workplace Services Interview Questions and Answers

Round duration - 45 minutes
Round difficulty - Easy

This was a test where 2 coding questions were to be solved in 45 minutes.

Q1. 
Excel Column Number Conversion
Given a column title as it appears in an Excel sheet, your task is to return its corresponding column number.
Example:
Input:
S = "AB"
Output:
28
Explanation:
The seq...read more
Ans. 
Convert Excel column title to corresponding column number.
• Iterate through the characters in the input string from right to left

• Calculate the value of each character based on its position and multiply by 26^index

• Sum up the values to get the final column number
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Q2. 
Check Permutation Problem
Determine if two given strings, str1 and str2, are permutations of each other.
Explanation:
Two strings are permutations of each other if the characters of one string can be re...read more
Ans. 
Check if two strings are permutations of each other.
• Create character frequency maps for both strings.

• Compare the frequency maps to check if they are permutations.

• Handle edge cases like empty strings or strings of different lengths.
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