哈夫曼费用计算C++

#include<stdio.h>
#include<string.h>
#include<math.h>
#include<iostream>
#include<limits.h>
#include<algorithm>
#include<queue>
#include<vector>
#include<set>
#include<stack>
#include<string>
#include<sstream>
#include<map>
#include<cctype>
using namespace std;
int main()
{
    int huff[],num,index = ,total = ;
    while(scanf("%d",&num)!=EOF)
    {
        for(int i=;i<num;i++)
            cin>>huff[i];

        while(index<num-)
        {
            sort(huff+index,huff+num);
            //printf("----%d====%d==(((%d==%d----\n",huff[index],index,num,huff[index+1]);
            huff[num++] = huff[index] + huff[index+];

            total += huff[num-];
            index += ;
        }
        cout<<total<<endl;
    }

}