GeeksforGeeks Experience · Jul 2025 · San Francisco

CouponDunia Interview Experience | Set 4 (Off-Campus for Internship)

SWE Phone Screen Intern Easy

Interview Experience

I applied of off campus for the internship. Selection consist of five rounds. I cleared all the rounds.Round 1:(Online Coding Test on Hacker Rank)This round consist of 3 q...

Full Details

I applied of off campus for the internship. Selection consist of five rounds. I cleared all the rounds.

Round 1 (Online Coding Test on Hacker Rank) This round consist of 3 question out of which two was easy and one was medium Q1. Run length Encoding of string with slight modification Q2. It was easy question dint remember Q3. A DP question variation of word break problem I did all the 3 questions and get call for the telephonic interview. Round 2:(Telephonic with real time coding with code pair) Q1. https://www.geeksforgeeks.org/dsa/root-to-leaf-path-sum-equal-to-a-given-number/ Q2. https://www.geeksforgeeks.org/dsa/root-to-leaf-path-sum-equal-to-a-given-number/ Q3 sql query to find 2nd highest salary and 6th highest salary Q4 6 pirate problem Round 3:(Skype round) Q1. given two string check if one is sub string of another or not Q2. given two string check if one is rotation of another or not. Q3. Alternate level order traversal of a binary tree. Q4. Heaps and its full code Q5. Given a file with millions of string sort them Q6. Given a linked list with millions of node a node will contain character from a to z . Sort them. Q7. There are 127 player in a knock out tournament how many min no of matches to be played to find out winner. Q8. DBMS indexing ,left join , outer join etc. Some concepts of OS. etc

About This Question

This is a candidate experience report from a coupondunia interview for a swe role (intern level) during the phone screen round reported in 2025.

It covers the following topics: Linked List, Strings, Trees, Dynamic Programming, Binary Tree, Sql .

Difficulty rating: Easy