第 1 測資點(100%): WA (line:1)
答案不正確

您的答案為: 226879
正確答案為: 227031

#include <stdio.h>

int month_days(int Y,int M){
 switch(M){
 case 1: case 3: case 5: case 7:
 case 8: case 10: case 12:
 return 31;
 break;
 case 4: case 6: case 9: case 11:
 return 30;
 break;
 case 2:
 if(Y % 400 == 0 || (Y % 4 == 0 && Y % 100 != 0)){
 return 29;
 }else{
 return 28;
 }
 break;
 default :
 return -1;
 break;
 }
}

int year_days(int y){
 if(y % 400 == 0 || (y % 4 == 0 && y % 100 != 0)){
 return 366;
 }else{
 return 365;
 }
}
int day_sum(int Y,int M,int D){
 int i,sum;
 for(i = 1,sum=D;i < M;i++){
 sum += month_days(Y,i);
 }
 return sum;
}

int main(void){
 int y_1,m_1,d_1;
 int y_2,m_2,d_2;
 int temp;
 int i,ans;
 while(scanf("%d%d%d%d%d%d",&y_1,&m_1,&d_1,&y_2,&m_2,&d_2) != EOF){
 int sum_1 = 0,sum_2 = 0;
 if(y_2 > y_1){
 temp = y_2;
 y_2 = y_1;
 y_1 = temp;
 temp = m_2;
 m_2 = m_1;
 m_1 = temp;
 temp = d_2;
 d_2 = d_1;
 d_1 = temp;
 }
 sum_2 = day_sum(y_2,m_2,d_2);
 for(i = y_1;y_1 > y_2;--y_1){
 sum_1 += year_days(i);
 }
 sum_1 += day_sum(y_1,m_1,d_1);
 if(sum_1 >= sum_2){
 ans = sum_1 - sum_2;
 }else{
 ans = sum_2 - sum_1;
 }
 printf("%d\n",ans);
 }
 return 0;
}