HP Coding Interview Questions
25 HP coding interview problems with full optimal solutions — 8 easy, 12 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 HP interviewer values, and a FAQ section.
Showing 2 problems of 25
- #1easyvery frequently asked
1. Two Sum
HP's firmware and driver teams frequently use look-up tables for O(1) dispatch — Two Sum tests whether you instinctively reach for a hash map instead of a brute-force scan, which matters when your code runs on embedded microcontrollers with tight loop budgets.
- #9easyoccasionally asked
9. Palindrome Number
HP firmware and driver code handles numeric identifiers for device serial numbers, cartridge IDs, and page counters. Palindrome Number tests digit-manipulation skills without string conversion — a meaningful constraint in embedded C where string allocation is expensive.