描述
有两个日期，求两个日期之间的天数，如果两个日期是连续的我们规定他们之间的天数为两天

输入描述：
有多组数据，每组数据有两行，分别表示两个日期，形式为YYYYMMDD

输出描述：
每组数据输出一行，即日期差值
示例1

输入：
20110412
20110422

输出：
11

#include<stdio.h>
using namespace std;void nextDay(int &year, int &month, int &day) {int dayOfMonth[] = {0,31,28,31,30,31,30,31,31,30,31,30,31};int isLeap = (year % 400 == 0) || (year % 4 == 0 && year % 100 != 0);// isLeap is Leap Year is 1 isLeap ? dayOfMonth[2] = 29 : dayOfMonth[2] = 28;day++;//if (day > dayOfMonth[month]) {month++;day = 1;}// if (month > 12) {year++;month = 1;} 
} /*
20011202
20011226
25
*/
int main() {int year, month, day;int year1, month1, day1;while(scanf("%4d%2d%2d\n%4d%2d%2d", &year, &month, &day, &year1, &month1, &day1)!=-1) {int count = 1;	// 起始天数为1 while (year!=year1 || month!=month1 || day!=day1 ) {nextDay(year, month, day);count++;}printf("%d",count);}return 0;
}