摘要:
Problem DescriptionXiao Ming is a citizen who's good at playing,he has lot's of gold cones which have square undersides,let's call them pyramids.Anyon... 阅读全文
摘要:
Problem DescriptionDue to the curse made by the devil,Xiao Ming is stranded on a mountain and can hardly escape.This mountain is pretty strange that i... 阅读全文
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Problem DescriptionTerrorists put some mines in a crowded square recently. The police evacuate all people in time before any mine explodes. Now the po... 阅读全文