编写一个函数，要求输入年月日时分秒，输出该年月日时分秒的下一秒

/*************************************
    编写一个函数，要求输入年月日时分秒，
    输出该年月日时分秒的下一秒。
    如输入2004年12月31日23时59分59秒，
    则输出2005年1月1日0时0分0秒
**************************************/

#include <stdio.h>
#include <stdlib.h>

/* define function */
void InputData(void);
int LeapYear(int year);
void NextSec(void);

/* month[0];leap year month[1]; common year */
int Amonth[2][13]={
                   {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
                   {0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
                   };
int leap = 0;
int year, month, day, hour, minute, second;
/*
 * Function Name: LeapYear()
 * Describe: judge the current year is leap year or not
 * Paramete: int year:current year
 * Return Value: 1-leap year; 0-not
 */
int LeapYear(int year)
{
    if ( (year%4 == 0) && (year%100 != 0) || 
         (year%400 == 0) )
    {
         return 1;
    }
    else
    {
        return 0;
    }
}

/*
 * Function Name: InputData()
 * Describe: input data
 * Paramete: void
 * Return Value: void
 */
void InputData(void)
{
     printf("Input year(Press Enter to end input):");
     if (scanf("%d", &year) != 1 || (year < 1000))
     {
                     puts("Input year error");
                     getchar();
                     exit(0);
     }
     leap = LeapYear(year);
      
     printf("Input month:");
     if (scanf("%d", &month) != 1 || month<1 || month>12)
     {
                     puts("Input month error!");
                     getchar();
                     exit(0);
     }
     
     printf("Input Day:");
     if (scanf("%d", &day) != 1 || day<1 || day>Amonth[leap][month])
     {
                     puts("Input day error!");
                     getchar();
                     exit(0);
     }
     
     printf("Input Hour:");
     if (scanf("%d", &hour) != 1 || hour<0 || hour>59)
     {
                     puts("Input hour error!");
                     getchar();
                     exit(0);
     }
     
     printf("Input Minute:");
     if (scanf("%d", &minute) != 1 || minute<0 || minute>59)
     {
                     puts("Input minute error!");
                     getchar();
                     exit(0);
     }
     
     printf("Input Second:");
     if (scanf("%d", &second) != 1 || second<0 || second>59)
     {
                     puts("Input second error!");
                     getchar();
                     exit(0);
     }
}

/*
 * Function Name: NextSec()
 * Describle: Count the next second by the current time
 * Paramete； void
 * ReturnValue: void 
 */
void NextSec(void)
{
     if (++second == 60)
     {
                  second = 0;
                  minute++;
     }
     if (minute == 60)
     {
                minute = 0;
                hour++;
     } 
     if (hour == 24)
     {
              hour = 0;
              day++;
     }
     if (day == Amonth[leap][month]+1)
     {
             day = 1;
             month++;
     }
     if (month == 13)
     {
               month = 1;
               year++;
     }
     
     printf("The next second is %d-%d-%d %d:%d:%d\n\n",
             year, month, day, hour, minute, second);
}

int main(void)
{
    InputData();
    
    NextSec();
    
    system("PAUSE");
    return 0;
}