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
| 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 }