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The Luckiest number Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 5455 Accepted: 1448 Description Chinese people think of '8' as the luck 阅读全文
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Mondriaan's Dream Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 17769 Accepted: 10198 Description Squares and rectangles fascinated the f 阅读全文
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GSS5 - Can you answer these queries V #tree #tree You are given a sequence A[1], A[2], ..., A[N] . ( |A[i]| <= 10000 , 1 <= N <= 10000 ). A query is d 阅读全文
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Hotel Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 18195 Accepted: 7897 Description The cows are journeying north to Thunder Bay in Cana 阅读全文
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Lost Cows Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 11946 Accepted: 7690 Description N (2 <= N <= 8,000) cows have unique brands in t 阅读全文
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4003: [JLOI2015]城池攻占 Description 小铭铭最近获得了一副新的桌游,游戏中需要用 m 个骑士攻占 n 个城池。 这 n 个城池用 1 到 n 的整数表示。除 1 号城池外,城池 i 会受到另一座城池 fi 的管辖, 其中 fi <i。也就是说,所有城池构成了一棵有根树。这 阅读全文
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Subway tree systems Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 8049 Accepted: 3357 Description Some major cities have subway systems i 阅读全文
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Find them, Catch them Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 47222 Accepted: 14543 Description The police office in Tadu City deci 阅读全文