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Modular Production Line 时空限制: 1000ms /65536K An automobile factory has a car production line. Now the market is oversupply and the production line is 阅读全文
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[USACO15DEC]最大流Max Flow [USACO15DEC]最大流Max Flow [USACO15DEC]最大流Max Flow 时空限制1000ms / 128MB 题目描述 Farmer John has installed a new system of N−1 pipes to 阅读全文
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Mountaineers 题目描述 The Chilean Andes have become increasingly popular as a destination for backpacking and hiking. Many parts of the Andes are quite re 阅读全文
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Pizza Delivery 题目描述 Alyssa is a college student, living in New Tsukuba City. All the streets in the city are one-way. A new social experiment starting 阅读全文
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Explosion at Cafebazaar 题目描述 You are an engineer at Cafebazaar and your specialty is understanding networks and their behaviors. Your colleagues have 阅读全文
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Spell Boost 题目描述 Shadowverse is a funny card game. One day you are playing a round of this game.You have n cards, each with two attributes wi and xi. 阅读全文