哈夫曼树的建立（二叉链表#include<iostream> #include<algorithm> #include<cstdio> #include<string> #include<vector> 版权声明：本文为m0_51098079原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接和本声明。原文链接：https://blog.csdn.net/m0_51098079/article/details/117636025