2012年9月13日
摘要：
River HopscotchTime Limit: 2000MSMemory Limit: 65536KTotal Submissions: 4473Accepted: 1928DescriptionEvery year the cows hold an event featuring a peculiar version of hopscotch that involves carefully jumping from rock to rock in a river. The excitement takes place on a long, straight river with a r 阅读全文
posted @ 2012-09-13 20:18
hebozi
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