5.

5.#

 1#include <iostream>
 2
 3using namespace std;
 4
 5int main() {
 6  int YH[7][7];
 7  for (int i = 1; i <= 6; i++) {
 8    YH[i][1] = 1;
 9    YH[i][i] = 1;
10  }
11  for (int i = 3; i <= 6; i++) {
12    for (int j = 2; j < i; j++) {
13      YH[i][j] = YH[i - 1][j] + YH[i - 1][j - 1];
14    }
15  }
16  for (int i = 1; i <= 6; i++) {
17    for (int j = 1; j <= i; j++) {
18      cout << YH[i][j] << '\t';
19    }
20    cout << '\n';
21  }
22  return 0;
23}