12310 - Point Location

All about problems in Volume 123. If there is a thread about your problem, please use it. If not, create one with its number in the subject.

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12310 - Point Location

Post by test_tset »

Does the graph guarantee to be a cactus (every edge belongs to exactly one polygon).
if it is not,it will be too hard to deal with. even it is hard to write a checker to judge if it is...
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