每日一九度之题目1043：Day of Week-白红宇

每日一九度之题目1043：Day of Week

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发布时间：2019-06-12

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题目描述：

We now use the Gregorian style of dating in Russia. The leap years are years with number divisible by 4 but not divisible by 100, or divisible by 400.

For example, years 2004, 2180 and 2400 are leap. Years 2004, 2181 and 2300 are not leap.

Your task is to write a program which will compute the day of week corresponding to a given date in the nearest past or in the future using today’s agreement about dating.

输入：

There is one single line contains the day number d, month name M and year number y(1000≤y≤3000). The month name is the corresponding English name starting from the capital letter.

输出：

Output a single line with the English name of the day of week corresponding to the date, starting from the capital letter. All other letters must be in lower case.

样例输入：

9 October 200114 October 2001

样例输出：

TuesdaySunday

提示：

Month and Week name in Input/Output:

January, February, March, April, May, June, July, August, September, October, November, December

Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday

已知年月日，计算星期的公式有两个，一个是蔡勒公式，另一个就是基姆拉尔森计算公式。

具体的我也就不写了，大家可以百度。O(∩_∩)O哈哈~

我用的是基姆拉尔森计算公式。可以试着用蔡勒公式做下。但是那个比这个麻烦一点，因为还要计算出世纪c。

//Asimple#include 
     
      #include 
      
       #include 
       
        #include 
        
         #include 
         
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            #include 
            
             #include 
             
              #include 
              #include 
               
                #include 
                
                 #include 
                 
                  #define INF 0x7fffffffusing namespace std;const int maxn = 115;typedef long long ll;int year, days;string moths[] = { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"};string str;string weeks[]={ "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday","Sunday"};int main(){ while( cin >> days >> str >> year ){ int m; for(int i=0; i<13; i++){ if( str == moths[i] ){ m = i + 1; break; } } if( m == 1 || m == 2 ){ m += 12; year --; } int a = (days + 2 * m + 3 * (m + 1) / 5 + year + year / 4 - year / 100 + year / 400) % 7; cout << weeks[a] << endl; } return 0;}

转载于:https://www.cnblogs.com/Asimple/p/5896342.html

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