poj1860(Bellman-Ford变形,含负权的单源最短路径,判断是否有正权环)
Currency Exchange
Time Limit: 1000MS Memory Limit: 30000K
Total Submissions: 24879 Accepted: 9059Description
Several currency exchange points are working in our city. Let us suppose that
原创
2016-04-15 22:30:00 ·
558 阅读 ·
0 评论