their RouterBoard 1xx and 5xx series devices. The original Mikrotik code -lso was based on the driver for Linux 2.4.xx published by Mikrotik for * their RouterBoard 1xx and 5xx series devices. The original Mikrotik code * seems not to have a

写一个程序，帮助前来咨询的游客找一条出发地和目的地之间的最短路径。如果有若干条路径都是最短的，那么需要输出最便宜的一条路径。(Write a program that helps visitors come to the shortest path between a destination and a destination. If there are several paths that are shortest, then you need to output the cheapest p