func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     int grid[n][n];     int nro = 1;     for (int i = 0; i < n; i++) {       if (!(i & 1))         for (int j = 0; j < n; j++) grid[j][i] = nro++;       else         for (int j = 0; j < n; j++) grid[n - 1 - j][i] = nro++;     }     for (int i = 0; i < n; i++) {       for (int j = 0; j < n; j++) cout << grid[i][j] <<    ;       cout << endl;     }   }   