getAddDay 함수 구현

#include <stdio.h>

int ddd[] = {31,28,31,30,31,30,31,31,30,31,30,31};
   
int is_leap_year(int y)
{
    return ( y % 4 == 0 )&& (( y % 100 != 0) || (y % 400 == 0) );
}

int getAdd(int y, int m , int d, int i)
{
    d += i;
    while(d > ddd[m - 1])
    {
            if(m == 2 && is_leap_year(y))
                 d -= 29;
            else
                 d -= ddd[m - 1];
            m++;
           
            if(m > 12)
            {
                 m -= 12;
                 y++;
            }
    }
    printf("%04d%02d%02d\n", y, m, d);
}

main()
{
      int yyyy,mm,dd;
      int i;
      yyyy = 2006;
      mm = 12;
      dd = 20;
     
      for(i = 0; i < 100; i++){
            getAdd(yyyy, mm, dd, i);
      }
}