一个新手写的C语言输出金字塔程序

#include 
#define N 20
int main(void) {
	int i, j, space = N / 2, y = N / 2 + 1;

	for (int i = 0; i < y; i++) {
		for (int j = 1; j <= space; j++) {
			printf(" ");
		}

		for (int j = 1; j <= i * 2 + 1; j++) {
			printf("*");
		}
		space -= 1;

		printf("n");
	}

	return 0;

}