C语言编译全国交通咨询模拟系统，可以查询火车，飞机的航班以及任意地点的最短到达时间和最便宜到达方式。-C Compiler National Transport Advisory simulation system, you can check train, plane flights, as well as anywhere the shortest arrival time and the cheapest way to reach.

全国交通咨询模拟完整正确的代码，注有系统要求等。-the correct and complete code for national transportation consultation