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- 问题陈述:有一推销员,欲到n(n<=10)个城市推销产品。为了节省旅行费用,在出发前他查清了任意两个城市间的旅行费用,想找到一条旅行路线,仅经过每个城市一次,且使旅行费用最少。-Problem Statement: a salesman, n (n < = 10) cities want to sell products. Before departure in order to save travel expenses, he find out the cost of travel