求解

//
#include <bits/stdc++.h>
using namespace std;
float a[100][100];
int main()
{
	int n,m;
	cin>>n>>m;
	for (int i=0;i<n;i++)
		for (int j=0;i<m;j++) cin>>a[i][j];
	for (int i=0;i<n;i++)
    {
		for (int j=0;j<m;j++)
            {
			if (!(i==0||i==n||j==0||j==m)) a[i][j]=floor((a[i+1][j]+a[i-1][j]+a[i][j-1]+a[i][j+1]+a[i][j])*1.0/5+0.5);
            cout<<a[i][j]<<" ";
            }
        cout<<"\n";
    }	
    return 0;
}