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FriendsTime Limit: 2 Seconds Memory Limit: 65536 KBAlice lives in the country where people like to make friends. The friendship is bidirectional and ... 阅读全文
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Density of Power NetworkTime Limit: 2 Seconds Memory Limit: 65536 KBThe vast power system is the most complicated man-made system and the greatest en... 阅读全文
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Break Standard WeightTime Limit: 2 Seconds Memory Limit: 65536 KBThe balance was the first mass measuring instrument invented. In its traditional for... 阅读全文
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ApplicationsTime Limit: 2 Seconds Memory Limit: 65536 KBRecently, the ACM/ICPC team of Marjar University decided to choose some new members from fres... 阅读全文