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1Unique Window — Return Lengthmedium
2Part 2
3Part 3
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Based onLeetCode
mediumBlind 75
Analytics: Longest Unique Session Window
Also known as: Longest Substring Without Repeating Characters
This one is the sliding window pattern: grow, shrink, and maintain just enough state to stay linear. Interviewers love it because it reveals your stateful scanning and your edge-case discipline. Once your window update rules are consistent, you get linear time almost for free.
Sliding WindowString
👩🏫
👨💼
Meet Allison & Tim
Your AI coaches
Practice coding interviews out loud with real-time voice coaching. Your code actually runs.
Free · No sign up · Early access
1Unique Window — Return Lengthmedium
2Part 2
3Part 3
Start Part 1 to unlock your next challenge
Based onLeetCode
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