1027 打印沙漏

#include 
int main(void){
	int k, j, l, n, i;
	char ch[2];
	scanf("%d %s",&n,ch);
	k = 22;
	while (2 * k * k > n + 1)
		k--;
	for (i = k; i >= 1;i--) {
		for (j = 1;j<=k-i; j++)
			printf(" ");
		for (j = 1;j<=2*i-1; j++) 
			printf("%c",ch[0]);
		if(k!=1)
		printf("n");
	}
	for (i = 2; i <= k; i++) {
		for (j = 1; j <= k - i; j++)
			printf(" ");
		for (j = 1; j <= 2*i-1; j++)
			printf("%c",ch[0]);
		if(i!=k)
		printf("n");
	}
	l = n - (2 * k * k - 1);
	if (l>0&&n!=1)
		printf("n%d", l);
	if (n == 1)
		printf("n0");
	return 0;
 }