0130 min suggested
Find the right array pattern
Merge two sorted arrays. Then adapt your solution when one array has enough unused space to hold both. Explain how you avoid overwriting unread values.
What a strong answer demonstrates
A maintained invariant, correct boundary handling, and justified complexity.
0230 min suggested
Reason about string windows
Find the longest substring without repeating characters. Walk through a repeated character, an empty input, and a string with all unique characters.
What a strong answer demonstrates
Correct window updates, explicit character assumptions, and linear-time reasoning.
0320 min suggested
Behavioral storytelling
Describe a technical decision you changed after receiving feedback. Explain your contribution and the outcome.
What a strong answer demonstrates
Specific actions, honest reflection, and measurable impact.