SGU115 - Calendar

115. Calendar

time limit per test: 0.5 sec. 
memory limit per test: 4096 KB

 

First year of new millenium is gone away. In commemoration of it write a program that finds the name of the day of the week for any date in 2001.

 

Input

Input is a line with two positive integer numbers N and M, where N is a day number in month M. N and M is not more than 100.

 

Output

Write current number of the day of the week for given date (Monday – number 1, … , Sunday – number 7) or phrase “Impossible” if such date does not exist.

 

Sample Input

21 10

Sample Output

7

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Author	: Michael R. Mirzayanov
Resource	: PhTL #1 Training Contests
Date	: January 2002

 

 

题解：傻逼题。。。

View Code

 1 #include <stdio.h>

 2 #include <stdlib.h>

 3 const int month[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};

 4 int main(void)

 5 {

 6     int n,m,ans,i;

 7     scanf("%d%d",&n,&m);

 8     ans=n;

 9     if(n>month[m])

10     printf("Impossible\n");

11     else

12     {

13         for(i=1;i<m;i++)

14         ans+=month[i];

15         printf("%d\n",(ans-1)%7+1);

16 

17     }

18     return 0;

19 }