题解 | 反斜线形图案

#include <stdio.h>


int main()
{
	int n = 0; 
	while (scanf("%d", &n) != EOF)
	{
		if (n >= 2 && n <= 20)
		{
			for (int i = 0; i < n; i += 1)
			{
				for (int j = 0; j < i; j++)
				{
					printf(" ");
				}
				for (int k = 0; k <= i; k++)
				{
					if (k == i)
					{
						printf("*");
					}
				}
				printf("\n");
			}
		}
		else
		{
			printf("输入不在范围\n");
			break; 
		}
	}
	return 0; 
}