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passriver
- 农夫过河程序。农夫载狼、羊、菜过一条河,每次只允许农夫和其中最多一样过河。若无农夫看管,狼若和羊在一起时,狼会吃掉羊;若羊和菜一起时,羊会吃掉菜。使农夫、狼羊和菜安全到达河的对岸。-The farmer across the river program. Farmer set the wolf, sheep, vegetables across a river, each of which allows only up to the farmer and the same river. With