本程序是使用动态规划算法来解决单源最短路径问题。使用时，先输入每个头结点的邻接顶点个数，然后输入每个邻接顶点的数据。-This procedure is to use the dynamic programming algorithm to solve the single-source shortest path problem. When used, enter each of the first number of vertices adjacent node, and then ente