> #include <stdio.h>
> int n,p,i,j,simp[101],rating[101],min,max;  // rating[] 表示复杂度
> bool sim[101],exist;                   // simp[]表示被当作最简单的次数
>                                       //sim[]记录是否为要输出的题号 
> int main()
> {
>     scanf("%d%d",&n,&p);
>     for(i=1; i<=p; i++)
>     {
>         sim[i] = true;
>         simp[i] = 0;
>     }    
>     for(i=0; i<n; i++)
>     {
>         for(j=1; j<=p; j++)
>             scanf("%d",&rating[j]);
>         min = 1001;
>         max = -1;
>         for(j=1; j<=p; j++)
>         {
>             if(rating[j]<min)
>                 min = rating[j];
>             if(rating[j]>max)
>                 max = rating[j];
>         }
>         for(j=1; j<=p; j++)
>         {
>             if(rating[j]==max)
>                 sim[j] = false;
>             if(rating[j]==min)
>                 simp[j]++;
>         //    printf("sim[%d] = %d   max = %d,  min = %d\n",j,sim[j],max,min);
>         }  
>                 
>     }
>     exist = false;
>     for(i=1; i<=p; i++)
>     {
>         if(simp[i]<=n*0.5)
>             sim[i] = false;
>         if(sim[i])
>             exist = true;    
>     }    
>     if(exist)
>     {
>         for(i=1; !sim[i]; i++);
>         printf("%d",i);
>         for(i++; i<=p; i++)
>             if(sim[i])
>                 printf(" %d",i);
>         printf("\n");
>     }
>     else
>         printf("0\n"); 
>   //  scanf("\n");           
>     return 0;
> }    

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