Algorithm · Pinterest · Hard
Distinct Active Pins per Time Segment Medium · Topics · Company Tags · Hints You are given a list of interaction records. Each record has three parts: an integer pin identifier, a start time s, and an end time e (s < e). A record indicates that the specified pin is considered active during the half‑open interval [s, e). A pin may appear in several records, and its active intervals can overlap each other. Within any time interval, the same pin must be counted only once, no…
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