【思路】：最基本。

【AC程式碼】：

#include <iostream>
#include <algorithm>
#include <iomanip>
#include <cstdio>
#include <cstring>
using namespace std;

int main()
{
	//freopen("in.txt", "r", stdin);
	//freopen("out.txt", "w", stdout);
	int n = 0, i = 0, j = 0;
	
	//input
	cin >> n;
	
	for (i = n; i >= 1; i--)
	{
		for (j = i; j >= 1; j--)
			cout << "* ";
		cout << endl;
	}
	return 0;
}