【题目来源】https://www.acwing.com/problem/content/description/180/【题目描述】 给定一张 N 个点(编号 1,2…N),M 条边的有向图,求从起点 S 到终点 T 的第 K 短路的长度,路径允许重复经过点或边。 注意࿱…
一、A* 算法简介A* algorithm is a popular choice for graph search. Breadth First Search is the simplest of the graph search algorithms. Graph search algorithms, including A*, take a “graph” as input. A* algorithm is a modification of Dijkstra’s Algorithm…