python/TangDou/XiTi/1087.cpp

#include <bits/stdc++.h>

using namespace std;

int main() {
    int n, m, a[100][100] = {0}, b[100][100] = {0};
    cin >> n >> m;
    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < m; ++j) {
            cin >> a[i][j];
            //初始化b
            b[i][j] = a[i][j];
        }
    }


    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < m; ++j) {
            if (i == 0 || i == n - 1 || j == 0 || j == m - 1) {
                continue;
            }
            //五个值
            b[i][j] = (a[i][j] + a[i - 1][j] + a[i + 1][j] + a[i][j - 1] + a[i][j + 1]) / 5;
        }
    }
    //输出结果
    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < m; ++j) {
            cout << b[i][j] << " ";
        }
        cout << endl;
    }
    return 0;
}