摘要:
Description These are N cities in Spring country. Between each pair of cities there may be one transportation track or none. Now there is some cargo t 阅读全文
摘要:
作者:张朋飞 出处:http://www.cnblogs.com/hxsyl/ 本文版权归作者张朋飞所有,欢迎转载和商用,但未经作者同意必须保留此段声明,且在文章页面明显位置给出原文连接,否则保留追究法律责任的权利. 一.问题引入 问题:从某顶点出发,沿图的边到达另一顶点所经过的路径中,各边上权值之 阅读全文