题解 | K形图案

#include <stdio.h>


int main()
{
	int n = 0; 
	while (scanf("%d", &n) == 1)
	{
		if (n >= 2 && n <= 20)
		{
			for (int i = 0; i < n + 1; i++)
			{
				for (int j = 0; j <= n - i; j++)
				{
					printf("* ");
				}
				printf("\n");
			}
			for (int l = 0; l < n; l++)
			{
				for (int k = 0; k <= l + 1; k++)
				{
					printf("* ");
				}
				printf("\n");
			}
		}
		else
		{
			break; 
		}
	}
	return 0; 
}