HSBC Group Full Stack Engineer Interview Questions and Answers

Round duration - 75 minutes
Round difficulty - Easy

It was an online round taken through hackerrank. There were two coding questions of Easy level, Technical and Aptitude MCQs, that we had to solve.

Q1. 
Merge Intervals Problem Statement
You are provided with 'N' intervals, each containing two integers denoting the start time and end time of the interval.
Your task is to merge all overlapping intervals a...read more
Ans. 
Merge overlapping intervals and return sorted list by start time.
• Sort the intervals based on start time.

• Iterate through intervals and merge overlapping ones.

• Return the merged intervals sorted by start time.
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Q2. 
Count Distinct Substrings
You are provided with a string S. Your task is to determine and return the number of distinct substrings, including the empty substring, of this given string. Implement the solut...read more
Ans. 
Implement a function to count the number of distinct substrings in a given string using a trie data structure.
• Create a trie data structure to store the substrings of the input string.

• Traverse the trie to count the number of distinct substrings.

• Handle empty string as a distinct substring.

• Return the count of distinct substrings for each test case.
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Round duration - 15 Minutes
Round difficulty - Easy

It was a mix of Technical and Behavioural round.

Round duration - 30 minutes
Round difficulty - Easy

Final HR round for checking Compatibility with the Company.