Postman Coding Interview Questions
32 Postman coding interview problems with full optimal solutions — 10 easy, 17 medium, 5 hard. Every problem ships with multiple approaches (brute-force first, then the optimal), complexity tables for each, company-specific tips on what an Postman interviewer values, and a FAQ section.
Showing 5 problems of 32
- #22hardfoundational
22. Median of Two Sorted Arrays
Find the median of two sorted arrays in logarithmic time.
- #23hardfoundational
23. Merge k Sorted Lists
Merge k sorted linked lists into a single sorted list.
- #24hardfoundational
24. Trapping Rain Water
Compute how much rain water can be trapped between bars of given heights.
- #25hardfoundational
25. Minimum Window Substring
Find the smallest substring of s that contains every character of t with the required multiplicity.
- #31hardfoundational
31. Serialize and Deserialize Binary Tree
Encode a binary tree to a string and decode it back to an identical tree.