#include<stdio.h>
#include<string.h>
int mian()
{
    int ji(int a,int b);
    int t,*p[100],change;
    int n,m,min,sec,i,j,time[100],score[100]={0};
    char song[100][31],str[31];
    while(scanf("%d",&n) && n){
        scanf("\n");
        for(i=0; i<n; i++){
            scanf("%s%d:%d\n",song[i],&min,&sec);
            time[i]=min*60+sec;
            p[i]=score+i;
        }
        scanf("%d\n",&m);
        for(i=0; i<m; i++){
            scanf("%s%d:%d\n",str,&min,&sec);
            t=min*60+sec;
            for(j=0; j<n; j++)
                if(strcmp(song[j],str)==0)
                    score[j]+=ji(t,time[j]);
        }
        for(i=0; i<n; i++)
            for(j=1; j<n; j++)
                if(*p[i] < *p[j] || *p[i]==*p[j] && strcmp(song[p[i]-score],song[p[j]-score])>0){
                    change=*p[i];
                    *p[i]=*p[j];
                    *p[j]=change;
                }
        for(i=0;i<n ;i++)
            printf("%s %d\n",song[p[i]-score],*p[i]);
    }
    return 0;
}

int ji(int a,int b)
{
    if ((double)a/(double)b<0.20)
        return 1;
    else if((double)a/(double)b<0.40)
        return 2;
    else if((double)a/(double)b<0.60)
        return 3;
    else if((double)a/(double)b<0.80)
        return 4;
    else return 5;
}

我的工程是win32 console application  文件是 c++ source file
网上找了种错的解决方法，没什么用。。。。求大虾帮助。。。！！！！！！！
compile 通过，但是build的时候出现错误：

--------------------Configuration: a - Win32 Debug--------------------
Linking...
LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
Debug/a.exe : fatal error LNK1120: 1 unresolved externals
执行 link.exe 时出错.

a.exe - 1 error(s), 0 warning(s)

注意看输出窗口的错误提示啊，
"unresolved external symbol _main"
一看就知道你的 main写错了

**，谢谢。。。