Problem Description: A salesman traveling salesman problem to a number of cities to sell commodities, known distance between cities (or travel).
问题描述：旅行商问题 某售货员要到若干城市去推销商品，已知各城市之间的路程（或旅费）。
The E-marketplace can use "a combination of pictures, literal description, and regulated classification" to introduce the quality and details of the traded commodities.
电子商务市场可以用“结合图片、文字描述、规范的分类“来介绍交易商品的质量和细节。
The E-marketplace can use "a combination of pictures, literal description, and regulated classification" to introduce the quality and details of the traded commodities.
电子商务市场可以用“结合图片、文字描述、规范的分类“来介绍交易商品的质量和细节。
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