Calendar
Problem Description
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
Solution
代码语言：javascript复制#include <bits/stdc .h>
int main() {
std::ios::sync_with_stdio(false);
std::vector<int> month{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
int n, m;
std::cin >> n >> m;
if(m > 12 || n > month[m - 1]) {
std::cout << "Impossible";
}
int day = 0;
for(int i = 0; i < m - 1; i ) {
day = month[i];
}
day = n - 1;
std::cout << day % 7 1 << std::endl;
}
