摘要: 题目 Musicians of a popular band "Flayer" have announced that they are going to "make their exit" with a world tour. Of course, they will visit Berland 阅读全文
posted @ 2020-05-26 15:51 Shawk 阅读(108) 评论(0) 推荐(0)
摘要: Dijkstra SPFA 堆优化dij Dijkstra基于贪心思想,指适用为边权都是非负数的图 而且这样写不能用于求最长路,需要进行优化,求最长路可以用SPFA 最长路没有子结构,子段最长不一定总的最长。如图: Code priority_queue< pair<int, int> > q; / 阅读全文
posted @ 2020-05-26 12:51 Shawk 阅读(133) 评论(0) 推荐(0)