多校联赛第一场(hdu4862) Jump Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 644 Accepted Submission(s): 275 Problem Description There are n*m grids, each grid contains a number, ranging from 0-9.…
题目 Source http://acm.hdu.edu.cn/showproblem.php?pid=4807 Description The campus of Nanjing University of Science and Technology can be viewed as a graph with N vertexes and M directed edges (vertexes are numbered from 0 to N - 1). Each edge has the s…