Suggest Problems based on Intervals

Revision en1, by pop3, 2021-03-27 21:13:04

Can you please suggest problems which are based on segments, intervals, line sweep (for intervals etc), like this one. How to find such problems on codeforces or other judges? Thanks!

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en1 English pop3 2021-03-27 21:13:04 274 Initial revision (published)