求多源最短路径的一个算法,编码风格清晰明了-Multi-source shortest path for an algorithm, coding style clear

这是传说中异常强悍的暴雪公司研究的哈希算法，采用三个哈希表来防止冲突，代码简练自成一体，无论是思想还是代码风格都非常值得大家学习！-This is the legendary Blizzard of abnormal powerful study of the hash algorithm, using three hash table to prevent conflict, the code concise self-contained, whether it is coding style