func_code_string: #include <bits/stdc++.h>   using namespace std;   template <class T>   void printVector(std::vector<std::vector<T>> const &matrix) {     for (std::vector<T> row : matrix) {       for (T val : row) {         std::cout << val;       }       std::cout <<   n ;     }   }   static void solve() {     int n;     cin >> n;     char D =  D ;     char star =  * ;     std::vector<std::vector<char>> matrix(n, std::vector<char>(n, star));     int mid = n / 2;     int from = mid;     int to = mid;     for (int i = 0; i < n; i++) {       for (int j = from; j <= to; j++) {         matrix[i][j] = D;       }       if (i >= mid) {         from++;         to--;       } else {         from--;         to++;       }     }     printVector(matrix);   }   int main() {     solve();     return 0;   }   