题目1096:日期差值 (2009年上海交通大学计算机研究生机试真题)

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:
20110412
20110422
样例输出:
11


代码如下:
#include "stdio.h"
  
int dayOfMonth[13][2]={   
    0,0,
    31,31,
    28,29,
    31,31,
    30,30,
    31,31,
    30,30,
    31,31,
    31,31,
    30,30,
    31,31,
    30,30,
    31,31
};
 
typedef struct Date{
    int year;
    int month;
    int day;
}Date;
 
int isRunNian(int year){  //判断是否是闰年
    if((year%100!=0&&year%4==0)||(year%400==0))
        return 1;
    else
        return 0;
}
 
int compare(Date d1,Date d2){
    if(d1.year>d2.year)
        return 1;
    else
        if(d1.year<d2.year)
            return 0;
        else{
            if(d1.month>d2.month)
                return 1;
            else
                if(d1.month<d2.month)
                    return 0;
                else{
                    if(d1.day>d2.day)
                        return 1;
                    else
                        if(d1.day<d2.day)
                            return 0;
                        else
                            return 2;//相同日期
                }
        }
     
}
 
void nextDay(Date* date){  //计算下一天
    (*date).day++;
    if((*date).day>dayOfMonth[(*date).month][isRunNian((*date).year)]){
        (*date).day=1;
        (*date).month++;
        if((*date).month>12){
            (*date).month=1;
            (*date).year++;
        }
    }
}
 
int main(int argc, char* argv[])
{
    Date date1,date2;
    while(scanf("%4d%2d%2d",&date1.year,&date1.month,&date1.day)!=EOF){
        scanf("%4d%2d%2d",&date2.year,&date2.month,&date2.day);
        //printf("%d\n",compare(date1,date2));
        //printf("date1.year:%d  date1.month:%d  date1.day:%d\n",date1.year,date1.month,date1.day);
        //printf("date2.year:%d  date2.month:%d  date2.day:%d\n",date2.year,date2.month,date2.day);
        Date big_Date,small_Date;
        if(compare(date1,date2)==1){
            big_Date.year=date1.year;       
            big_Date.month=date1.month;
            big_Date.day=date1.day;
            small_Date.year=date2.year;     
            small_Date.month=date2.month;
            small_Date.day=date2.day;
        }
        else{
            big_Date.year=date2.year;       
            big_Date.month=date2.month;
            big_Date.day=date2.day;
            small_Date.year=date1.year;     
            small_Date.month=date1.month;
            small_Date.day=date1.day;
        }
        int count=1;//用于计数
        while(compare(small_Date,big_Date)==0||compare(small_Date,big_Date)==1){//小日期追赶大日期,count计数
            count++;
            nextDay(&small_Date);
        }
        printf("%d\n",count);
    }
    return 0;
}
 
/**************************************************************
    Problem: 1096
    User: lcyvino
    Language: C
    Result: Accepted
    Time:10 ms
    Memory:912 kb
****************************************************************/

 

posted @ 2014-11-02 14:56  tinylcy  阅读(234)  评论(0编辑  收藏  举报