题目描述：
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：
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：
每组数据输出一行，即日期差值
样例输入： 2011041220110422样例输出： 11
Java AC 代码：
import java.util.Scanner; public class Main {/*** @param args*/public static void main(String[] args) {// TODO Auto-generated method stubint date1, date2;Scanner inScanner = new Scanner(System.in);while (inScanner.hasNext()) {date1 = inScanner.nextInt();date2 = inScanner.nextInt();int temp;if (date1 > date2) {temp = date1;date1 = date2;date2 = temp;}int year1, month1, day1, year2, month2, day2;year1 = date1 / 10000;month1 = (date1 / 100) % 100;day1 = date1 % 100;year2 = date2 / 10000;month2 = (date2 / 100) % 100;day2 = date2 % 100;System.out.println(diff(year1, month1, day1, year2, month2, day2));}}public static boolean isLeap(int year) {if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0)return true;else {return false;}}public static int diff(int year1, int month1, int day1, int year2,int month2, int day2) {int farAwayfromYuanDanofYear1 = countDaysSinceNewYear(year1, month1, day1);int farAwayfromYuanDanofYear2= countDaysSinceNewYear(year2, month2, day2);int count =0;if(year1 == year2){return Math.abs(farAwayfromYuanDanofYear1-farAwayfromYuanDanofYear2)+1;}else {for(int i = year1+1;i<year2;i++){if(isLeap(i))count+=366;else {count+=365;}}if(isLeap(year1))return count+farAwayfromYuanDanofYear2 + 367 – farAwayfromYuanDanofYear1;else {return count+farAwayfromYuanDanofYear2 + 366 – farAwayfromYuanDanofYear1;}}}public static int countDaysSinceNewYear(int year, int month, int day) {int[] leapMonth = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };int[] commonMonth = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };int farAwayfromYuadan = 0;if (isLeap(year)) {for (int i = 0; i < month; i++) {farAwayfromYuadan += leapMonth[i];}} else {for (int i = 0; i < month; i++) {farAwayfromYuadan += commonMonth[i];}}return farAwayfromYuadan + day;}}/**************************************************************Problem: 1096User: CarvinLanguage: JavaResult: AcceptedTime:90 msMemory:15464 kb****************************************************************/Java WA（为什么？）import java.util.Scanner; public class Main{public static void main(String[] args){int year1=0,year2=0;int month1=0,month2 = 0;int day1,day2;int leapDay1,leapDay2;int i;String str1,str2;Scanner cin=new Scanner(System.in);while(cin.hasNext()){year1=0;year2=0;leapDay1=0;leapDay2=0;str1=cin.nextLine();str2=cin.nextLine();char strarray1[]=str1.toCharArray();char strarray2[]=str2.toCharArray();for(i=0;i<4;i++){year1=year1*10+strarray1[i]-'0';year2=year2*10+strarray2[i]-'0';}month1=(strarray1[4]-'0')*10+strarray1[5]-'0';month2=(strarray2[4]-'0')*10+strarray2[5]-'0';day1=(strarray1[6]-'0')*10+strarray1[7]-'0';day2=(strarray2[6]-'0')*10+strarray2[7]-'0';for (i=0;i<year1||i<year2;i++){if (leapYear(i)&&(i<year1)){leapDay1++;}if (leapYear(i)&&(i<=year2)){leapDay2++;}}int total_day1=year1*365+month(month1)+day1+leapDay1;int total_day2=year2*365+month(month2)+day2+leapDay2;System.out.println((total_day1>total_day2?total_day1-total_day2:total_day2-total_day1)+1);}}public static int month(int y){int a[]=new int[13];int sum=0;a[0]=0;a[1]=a[3]=a[5]=a[7]=a[8]=a[10]=a[12]=31;a[2]=28;a[4]=a[6]=a[9]=a[11]=30;for (int i=1;i<=y;i++){sum+=a[i];}return sum;}public static boolean leapYear(int y){if(y % 400 == 0 || (y % 100 != 0 && y % 4 == 0))return true;elsereturn false;}}/**************************************************************Problem: 1096User: CarvinLanguage: JavaResult: Wrong Answer****************************************************************/以及C++ 超时：#include <iostream>#include <string>#include <cmath>using namespace std;bool leapYear(int y);int month(int m);int main(){string str1;string str2;int year1=0,year2=0;int month1,month2;int day1,day2;int i;while (getline(cin,str1)){getline(cin,str2);int leapDay1=0,leapDay2=0;for (i=0;i<4;i++){year1=year1*10+str1[i]-'0';year2=year2*10+str2[i]-'0';}month1=(str1[4]-'0')*10+str1[5]-'0';month2=(str2[4]-'0')*10+str2[5]-'0';day1=(str1[6]-'0')*10+str1[7]-'0';day2=(str2[6]-'0')*10+str2[7]-'0';for (i=0;i<year1;i++){if (leapYear(i)){leapDay1++;}}for (i=0;i<year2;i++){if (leapYear(i)){leapDay2++;}}int total_day1=year1*365+month(month1)+day1+leapDay1;int total_day2=year2*365+month(month2)+day2+leapDay2;//cout<<total_day1<<endl;//cout<<total_day2<<endl;//cout<<abs(total_day1-total_day2)+1<<endl;cout<<(total_day1>total_day2?total_day1-total_day2:total_day2-total_day1)+1<<endl;}return 1;} bool leapYear(int y){if(y % 400 == 0 || (y % 100 != 0 && y % 4 == 0))return 1;elsereturn 0;} int month(int m){int a[13];int sum=0;a[0]=0;a[1]=a[3]=a[5]=a[7]=a[8]=a[10]=a[12]=31;a[2]=28;a[4]=a[6]=a[9]=a[11]=30;for (int i=1;i<m;i++){sum+=a[i];}return sum;}/**************************************************************Problem: 1096User: CarvinLanguage: C++Result: Time Limit Exceed****************************************************************/
趁着有脾气装潇洒，有本钱耍个性，
