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Pin / Board Graph Distance

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Given a bipartite graph of boards and pins (each board owns a list of pins; pins can appear on multiple boards), answer three questions: are two pins related, shortest pin-to-pin distance via shared b...

SWE
MLE
graph
bfs
hashmap
medium
Frequency
Medium
Last asked
2026-09-23
Stage
phone-screen · onsite-coding

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