Real Interview Questions

PhonePe Interview Questions (Real, Asked)

12 real questions candidates were actually asked at PhonePe interviews. Practice any of them out loud with Roundd AI and get instant feedback — free, no signup.

1. 1.

   Why PhonePe? Why not a company like Google or Amazon that pays more?

   SDE-1 · Technical

2. 2.

   What is the difference between stack memory and heap memory?

   SDE-1

3. 3.

   What is deadlock? What are its conditions, and describe a scenario where it may occur.

   SDE-1

4. 4.

   Design a system for a single lift in a 1000-floor building, then extend it to 3 lifts.

   SDE-1 · System Design

5. 5.

   Given an array of ratings for N children, find the minimum number of candies to distribute so every child gets at least one and any child with a higher rating than a neighbour gets more.

   SDE-1

6. 6.

   Given numCourses and a list of prerequisite pairs, determine whether you can finish all the courses.

   SDE-1

7. 7.

   Given a function rand6() that returns 1 to 6 with equal probability, implement rand12() as a one-liner.

   SDE-1 · Puzzle

8. 8.

   Design a data structure that supports adding an element, removing an element, and returning the minimum-frequency and maximum-frequency element.

   SDE-1

9. 9.

   Calculate the minimum cost of a journey from n1 to n2, where the cost of moving from one prime number to another is their difference.

   SDE-1

10. 10.

    Given m breads with costs and n sauces with costs and a budget B, choose exactly one bread and any number of sauces (each at most once) to make the bill as close as possible to B.

    SDE-1

11. 11.

    Given an array, add or subtract k from every element exactly once so that the difference between the maximum and minimum element is minimised.

    SDE-1

12. 12.

    Tell me about a recent argument you had — with whom, and how did you deal with it?

    SDE-1 · HR