C++输出指定层高金字塔图案

#include <iostream>
using namespace std;

int main(){
	int n;
	cin >> n;
	
	for (int i = 1;i <= n;i ++){
		for (int j = 1;j <= n - i;j ++){
			cout << " ";
		}
		for (int k = 1;k <= 2 * i - 1;k ++){
			cout << "*";
		}
		cout << endl;
	}
	return 0;
}