编写的warshall算法、级别划分的算法的综合性算法。由于课程没要求进行编写区域划分算法，而区域划分是级别划分的前提，因此该算法中也把区域算法进行了编程实现-Prepared warshall algorithm, the algorithm-level partition algorithm integrated. As the program did not require the preparation of regional division algorithm, which is t