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POJ 2080 Calendar

2024-07-17 13:29:56   214人阅读

/*

中文题目 日历
中文翻译-大意 给一个数字，叫你求它是2000-1-1以后的日期和星期
解题思路：星期几很好求，只要对7求模就得到星期几了。他也告诉你2000年1月1号是星期六

难点详解：星期几的字符数组第一个要注意。至于年月日，就是用总天数减去每一天的天数，减去多少年，年就是多少，

同理月份也是一样，但最后要加上一个1；
关键点：细心
解题人：lingnichong
解题时间：2014/08/14   12:38
解题体会：注意细节
*/


Calendar
Time Limit: 1000MS Memory Limit: 30000K
Total Submissions: 11335 Accepted: 4189

Description

A calendar is a system for measuring time, from hours and minutes, to months and days, and finally to years and centuries. The terms of hour, day, month, year and century are all units of time measurements of a calender system. 
According to the Gregorian calendar, which is the civil calendar in use today, years evenly divisible by 4 are leap years, with the exception of centurial years that are not evenly divisible by 400. Therefore, the years 1700, 1800, 1900 and 2100 are not leap years, but 1600, 2000, and 2400 are leap years. 
Given the number of days that have elapsed since January 1, 2000 A.D, your mission is to find the date and the day of the week.

Input

The input consists of lines each containing a positive integer, which is the number of days that have elapsed since January 1, 2000 A.D. The last line contains an integer ?1, which should not be processed. 
You may assume that the resulting date won’t be after the year 9999.

Output

For each test case, output one line containing the date and the day of the week in the format of "YYYY-MM-DD DayOfWeek", where "DayOfWeek" must be one of "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday" and "Saturday".

Sample Input

1730
1740
1750
1751
-1

Sample Output

2004-09-26 Sunday
2004-10-06 Wednesday
2004-10-16 Saturday
2004-10-17 Sunday

Source

Shanghai 2004 Preliminary




#include<stdio.h>

int m1[2][12]={31,28,31,30,31,30,31,31,30,31,30,31,31,29,31,30,31,30,31,31,30,31,30,31};
int year[2]={365,366};
char week[7][10]={"Saturday","Sunday","Monday","Tuesday","Wednesday","Thursday","Friday"};

int leap(int m)
{
	if(m%4==0&&m%100!=0||m%400==0)
		return 1;
	else
		return 0;
}
int main()
{
	int day,weekday;
	int i,j;
	while(scanf("%d",&day),day!=-1)
	{
		weekday=day%7;
		for(i=2000;day>=year[leap(i)];i++)
			day-=year[leap(i)];
		for(j=0;day>=m1[leap(i)][j];j++)
			day-=m1[leap(i)][j];
		printf("%d-%02d-%02d %s\n",i,j+1,day+1,week[weekday]);
	}
	return 0;
}


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