Very tough LeetCode-style challenge.
I recommend looking at the hard LeetCode algorithmic challenges. I was stuck on the coding portion for a long time. Nothing about time complexity, space complexity, or Big O notation.
A difficult LeetCode problem was asked.
The following metrics were computed from 126 interview experiences for the Citadel Software Engineer role in United States.
Citadel's interview process for their Software Engineer roles in the United States is extremely selective, failing the vast majority of engineers.
Candidates reported having good feelings for Citadel's Software Engineer interview process in United States.