题解 | #四季#

#include <stdio.h>

int main()
{
	int a;
	int b = 0;
	int c = 100000;

	scanf("%d", &a);

	while (b < 4)
	{
		a %= c;
		c /= 10;
		b++;
	}
	//利用取余去掉年份，留下月份，然后判断月份属于哪个季节
	if (a >= 3 && a <= 5)
	{
		printf("spring\n");
	}
	else if (a >= 6 && a <= 8)
	{
		printf("summer\n");
	}
	else if (a >= 9 && a <= 11)
	{
		printf("autumn\n");
	}
	else if (a == 12 || a == 1 || a == 2)
	{
		printf("winter\n");
	}
	return 0;
}