Gusto Coding Interview Questions
25 Gusto 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 Gusto interviewer values, and a FAQ section.
Showing 3 problems of 25
- #1easyfrequently asked
1. Two Sum
Find the two indices whose values sum to a target. Gusto uses this as a warm-up to see if you think in hash maps before brute force — they care about naming, clean early returns, and whether you'd write a test for the no-solution case.
- #20easyfrequently asked
20. Valid Parentheses
Check whether a string of brackets is properly nested and closed. Gusto asks this to test stack intuition and clean code — they want to see a minimal bracket map and early exits, not a sprawling switch statement.
- #206easyfrequently asked
206. Reverse Linked List
Reverse a singly linked list in-place. Gusto uses this to test pointer manipulation fundamentals and to see whether candidates can articulate the three-variable dance (prev, curr, next) before touching the keyboard.