HDU——2023 —— 求平均成绩

#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
    int n,m;
    int a[55][6];
    while (cin>>n>>m)
    {
        for (int i=0;i<n;i++)
        {
            for (int j=0;j<m;j++)
            {
                cin>>a[i][j];
            }
        }
        for (int i=0;i<n;i++)
        {
            int sum=0,;
            double average=0;
            for (int j=0;j<m;j++)
            {
                sum+=a[i][j];
            }
            average=sum/(m*1.0);
            if (i==0)
            {
                cout<<fixed<<setprecision(2)<<average;
            }
            else
                cout<<" "<<fixed<<setprecision(2)<<average;
        }
        cout<<endl;
        double average1[5];
        for (int j=0;j<m;j++)
        {
            int sum1=0;
            for (int i=0;i<n;i++)
            {
                sum1+=a[i][j];
            }
            average1[j]=sum1/(n*1.0);
            if (j==0)
            {
                cout<<fixed<<setprecision(2)<<average1[j];
            }
            else
                cout<<" "<<fixed<<setprecision(2)<<average1[j];
        }
        cout<<endl;
        int count=0;
        for (int i=0;i<n;i++)
        {
            int x=0;
            for (int j=0;j<m;j++)
            {
                if (a[i][j]>=average1[j])
                {
                    x++;
                }
            }
            if (x==m)
            {
                count++;
            }
        }
        cout<<count<<endl<<endl;
    }
    return 0;
}