ByteDance / TikTokCoding·60 minMembers
Spiral Matrix (LC 54) with Follow-Up Constraints
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LC 54 Spiral Matrix in an e-commerce backend intern first round, conducted in Chinese. After a DFS + visited-array answer, the interviewer adds two constraints: O(1) extra space (output excluded) and ...
SWE
array
grid
simulation
medium
Frequency
Single report
Last asked
2026-09-28
Stage
phone-screen
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