Varianta3Subiectul2Problema5.cpp

#include <iostream>
using namespace std;
int main() {
  int i, n, j, a[30][30];
  cin >> n;
  for (i = 0; i < n; i++)
    for (j = 0; j < n; j++)
      if (i == j)
        a[i][j] = 0;
      else
        a[i][j] = n - j;
  for (i = 0; i < n; i++) {
    for (j = 0; j < n; j++)
      cout << a[i][j] << " ";
    cout << endl;
  }
  return 0;
}