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

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 }