一只题解

#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,m;
    cin>>n>>m;
    int s[n+5][m+5];
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            cin>>s[i][j];
        } 
    } 
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            double sc=0;
            if(i==0||j==0||i==n-1||j==m-1)sc=s[i][j];
            else sc=(s[i+1][j]+s[i-1][j]+s[i][j-1]+s[i][j+1]+s[i][j])/5;
            if(sc-sc/1>=0.5)cout<<sc+1;
            else cout<<sc;
            cout<<" ";
        } 
        cout<<endl;
    }
	return 0;
}