今年的第几天？

题目

代码

 1 #include<iostream>
 2 #include<algorithm>
 3 using namespace std;
 4 
 5 int ISYEAP(int x){
 6     if((x%100!=0 && x % 4 == 0) || (x % 400 == 0) )return 1;
 7     else return 0;
 8 }
 9 int dayOfMonth[13][2] = {
10     0,0,
11     31,31,
12     28,29,
13     31,31,
14     30,30,
15     31,31,
16     30,30,
17     31,31,
18     31,31,
19     30,30,
20     31,31,
21     30,30,
22     31,31
23 };
24 typedef struct Date{
25     int Day;
26     int Month;
27     int Year;
28     void nextDay(){
29         Day++;
30         if(Day > dayOfMonth[Month][ISYEAP(Year)]){
31             Day = 1;
32             Month++;
33             if(Month > 12){
34                 Month = 1;
35                 Year++;
36             }
37         }
38     }
39 }Date;
40 
41 int buf[3001][13][32];
42 int main(){
43     Date tmp;
44     tmp.Year = 0,tmp.Month = 1,tmp.Day = 1;
45     int cnt = 0;
46     while(tmp.Year != 3001){
47         buf[tmp.Year][tmp.Month][tmp.Day] = cnt;
48         tmp.nextDay();
49         cnt++;
50     }
51     int y,m,d;
52     while(scanf("%d%d%d",&y,&m,&d) != EOF){
53         int days = abs(buf[y][m][d] - buf[y][1][1]) + 1;  //算和今年元旦的差值
54         printf("%d
",days);
55     }
56     return 0;
57 }