Barclays Technical Associate Interview Questions and Answers for Freshers

Round duration - 60 minutes
Round difficulty - Medium

MySql query questions
2 coding questions 
oops questions 
Networking questions

Q1. 
Sum of Two Elements Equals the Third
Determine if a given array contains a valid triplet of integers where two elements sum up to the third. Specifically, find indices i, j, and k such that i != j, j != k...read more
Ans. 
Check if a given array contains a valid triplet where two elements sum up to the third.
• Iterate through all possible triplets and check if any of the conditions are satisfied.

• Use nested loops to compare each element with every other element in the array.

• Handle cases where the same element is repeated multiple times in the array.
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Q2. 
First Missing Positive Problem Statement
You are provided with an integer array ARR of length 'N'. Your objective is to determine the first missing positive integer using linear time and constant space. T...read more
Ans. 
Find the smallest positive integer missing from an array of integers.
• Iterate through the array and mark positive integers as visited by changing the sign of the corresponding index.

• After marking, iterate again to find the first positive integer with a positive value, indicating it was not visited.

• Return the index of the first positive integer found plus 1 as the missing positive integer.
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Round duration - 60 minutes
Round difficulty - Medium

Starting with tell me about yourself
Struggling with many SQL queries
And OOPS questions
And project based questions

Q1. 
Reverse String Word Wise
You are tasked with reversing the given string word-wise. This means that the last word in the input string should appear first, the second-last word second, and so on. Importantl...read more
Ans. 
Reverse the given string word-wise while keeping the characters of each word in their original order.
• Split the input string by spaces to get individual words

• Reverse the order of the words in the resulting array

• Join the words back together with spaces in between
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