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Description You are given a description of a depot. It is a rectangular checkered field of n × m size. Each cell in a field can be empty (".") or it c 阅读全文
posted @ 2016-07-20 16:08
樱花落舞
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Description There will be a launch of a new, powerful and unusual collider very soon, which located along a straight line. n particles will be launche 阅读全文
posted @ 2016-07-20 16:01
樱花落舞
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