Skip to content

Latest commit

 

History

History
123 lines (96 loc) · 1.85 KB

4.md

File metadata and controls

123 lines (96 loc) · 1.85 KB

题目：输入某年某月某日，判断这一天是这一年的第几天？

#include<stdio.h>

int main()
{
	int year, month, day;
	scanf("%d,%d,%d", &year, &month, &day);

	int cnt = 0;

	if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0))
	{
		switch (month)
		{
		case 1:
			cnt = day;
			break;

		case 2:
			cnt = 31 + day;
			break;

		case 3:
			cnt = 31 + 29 + day;
			break;

		case 4:
			cnt = 31 + 29 + 31 + day;
			break;

		case 5:
			cnt = 31 + 29 + 31 + 30 + day;
			break;

		case 6:
			cnt = 31 + 29 + 31 + 30 + 31 + day;
			break;

		case 7:
			cnt = 31 + 29 + 31 + 30 + 31 + 30 + day;
			break;

		case 8:
			cnt = 31 + 29 + 31 + 30 + 31 + 30 + 31 + day;
			break;

		case 9:
			cnt = 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + day;
			break;

		case 10:
			cnt = 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + day;
			break;

		case 11:
			cnt = 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + day;
			break;

		case 12:
			cnt = 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + day;
			break;
		}
	}
	else
	{
		switch (month)
		{
		case 1:
			cnt = day;
			break;

		case 2:
			cnt = 31 + day;
			break;

		case 3:
			cnt = 31 + 28 + day;
			break;

		case 4:
			cnt = 31 + 28 + 31 + day;
			break;

		case 5:
			cnt = 31 + 28 + 31 + 30 + day;
			break;

		case 6:
			cnt = 31 + 28 + 31 + 30 + 31 + day;
			break;

		case 7:
			cnt = 31 + 28 + 31 + 30 + 31 + 30 + day;
			break;

		case 8:
			cnt = 31 + 28 + 31 + 30 + 31 + 30 + 31 + day;
			break;

		case 9:
			cnt = 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + day;
			break;

		case 10:
			cnt = 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + day;
			break;

		case 11:
			cnt = 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + day;
			break;

		case 12:
			cnt = 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + day;
			break;
		}
	}

	printf("这一天是这一年的第%d天", cnt);

	return 0;
}