CCF CSP 201509-2 日期计算

题目链接：http://118.190.20.162/view.page?gpid=T31

题目就是给定年份以及第几天，反推几月几号。。。水

 1 #include <iostream>
 2 #include <algorithm>
 3 #include <string>
 4 #include <cstring>
 5 #include <stack>
 6 #include <cstdio>
 7 using namespace std;
 8 int n,m,i;
 9 int isRun(int x)
10 {
11     return x%400==0||(x%4==0&&x%100!=0);
12 }
13 int a[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
14 int main()
15 {
16     while(cin>>n>>m){
17         if(isRun(n)) a[2]=29;
18         else a[2]=28;
19         for(i=0;i<13;i++){
20             if(m>a[i]){
21                 m-=a[i];
22             }
23             else break;
24         }
25         cout<<i<<endl;
26         cout<<m<<endl;
27         //printf("%d-%02d-%02d
",n,i,m);
28     }
29     return 0;
30 }

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