ByteDance / TikTokCoding·30 minMembers
Longest Substring with At Most K Distinct Characters
Members only
Sliding-window warmup in a TT SDE phone screen, paired with a much harder grid-with-fuel BFS problem.
SWE
sliding-window
hashmap
string
easy
Frequency
Low
Last asked
2026-09-04
Stage
phone-screen
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