View Code of Problem 81

#include<stdio.h>

struct Time
{
	int year;
	int mouth;
	int day;
};

int main(void)
{
	struct Time time1;
	int sum;
	scanf("%d %d %d",&time1.year,&time1.mouth,&time1.day);
	if(time1.year%4==0)
	{
		if(time1.year%100!=0||time1.year%400==0)
		{
			switch(time1.mouth)
			{
				case 1:sum=time1.day;break;
				case 2:sum=31+time1.day;break;
				case 3:sum=31+29+time1.day;break;
				case 4:sum=31+29+31+time1.day;break;
				case 5:sum=31+29+31+30+time1.day;break;
				case 6:sum=31+29+31+30+31+time1.day;break;
				case 7:sum=31+29+31+30+31+30+time1.day;break;
				case 8:sum=31+29+31+30+31+30+31+time1.day;break;
				case 9:sum=31+29+31+30+31+30+31+31+time1.day;break;
				case 10:sum=31+29+31+30+31+30+31+31+30+time1.day;break;
				case 11:sum=31+29+31+30+31+30+31+31+30+31+time1.day;break;
				case 12:sum=31+29+31+30+31+30+31+31+30+31+30+time1.day;break;
			}
		}
		else
		{
			switch(time1.mouth)
			{
				case 1:sum=time1.day;break;
				case 2:sum=31+time1.day;break;
				case 3:sum=31+28+time1.day;break;
				case 4:sum=31+28+31+time1.day;break;
				case 5:sum=31+28+31+30+time1.day;break;
				case 6:sum=31+28+31+30+31+time1.day;break;
				case 7:sum=31+28+31+30+31+30+time1.day;break;
				case 8:sum=31+28+31+30+31+30+31+time1.day;break;
				case 9:sum=31+28+31+30+31+30+31+31+time1.day;break;
				case 10:sum=31+28+31+30+31+30+31+31+30+time1.day;break;
				case 11:sum=31+28+31+30+31+30+31+31+30+31+time1.day;break;
				case 12:sum=31+28+31+30+31+30+31+31+30+31+30+time1.day;break;
			}
		}
	}
	else
	{
		switch(time1.mouth)
			{
				case 1:sum=time1.day;break;
				case 2:sum=31+time1.day;break;
				case 3:sum=31+28+time1.day;break;
				case 4:sum=31+28+31+time1.day;break;
				case 5:sum=31+28+31+30+time1.day;break;
				case 6:sum=31+28+31+30+31+time1.day;break;
				case 7:sum=31+28+31+30+31+30+time1.day;break;
				case 8:sum=31+28+31+30+31+30+31+time1.day;break;
				case 9:sum=31+28+31+30+31+30+31+31+time1.day;break;
				case 10:sum=31+28+31+30+31+30+31+31+30+time1.day;break;
				case 11:sum=31+28+31+30+31+30+31+31+30+31+time1.day;break;
				case 12:sum=31+28+31+30+31+30+31+31+30+31+30+time1.day;break;
			}
	}
	printf("%d\n",sum);
	return 0;
}