摘要：
Assume the coasting is an infinite straight line. Land is in one side of coasting, sea in the other. Each small island is a point locating in the sea 阅读全文
posted @ 2019-02-10 14:30
EchoZQN
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摘要：
Polycarp has recently got himself a new job. He now earns so much that his old wallet can't even store all the money he has. Berland bills somehow com 阅读全文
posted @ 2019-02-10 14:22
EchoZQN
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