一道C语言题目求找错

#include
void main()
{
    int n,m,i,j,count,s;
    double a[51][51],sum1[51],sum2[51];
    while(scanf("%d%d",&n,&m)!=EOF)
    {
        for(j=1;j<=m;j++)
        {
            sum2[j]=0;
        }
        for(i=1;i<=n;i++)
        {
            sum1[i]=0;
            for(j=1;j<=m;j++)
            {
                scanf("%lf",&a[i][j]);
                sum1[i]+=a[i][j];
                sum2[j]+=a[i][j];
            }
        }
        for(i=1;i<=n;i++)
        {
            if(i!=n)
                printf("%.2lf ",sum1[i]/(double)m);
            else
                printf("%.2lf",sum1[i]/(double)m);
        }
        printf("\n");
        for(i=1;i<=m;i++)
        {
            if(i!=m)
                printf("%.2lf ",sum2[i]/(double)n);
            else
                printf("%.2lf",sum2[i]/(double)n);
        }
        printf("\n");
        count=0;
        for(i=1;i<=n;i++)
        {
            s=0;
            for(j=1;j<=m;j++)
            {
                if(a[i][j]>=sum2[j]/(double)n)
                    s++;
            }
            if(s==m)
                count++;
        }
        printf("%d\n\n",count);
    }
}