Chegg Coding Interview Questions
25 Chegg coding interview problems with full optimal solutions — 14 easy, 8 medium, 3 hard. Every problem ships with multiple approaches (brute-force first, then the optimal), complexity tables for each, company-specific tips on what an Chegg interviewer values, and a FAQ section.
Showing 3 problems of 25
- #23hardfoundational
23. Trapping Rain Water
Compute total water trapped between histogram bars — a classic two-pointer hard that Chegg uses to assess whether candidates can reduce a prefix/suffix problem to O(1) space.
- #24hardfoundational
24. Median of Two Sorted Arrays
Find the median of two sorted arrays in O(log(m+n)) — a binary search hard that Chegg uses to test whether candidates can handle partitioned sorted data as arises in distributed search indexing.
- #25hardfoundational
25. Minimum Window Substring
Find the smallest substring of s containing all characters of t — a sliding window hard Chegg applies to substring matching in their document search and plagiarism detection pipelines.