Leap year

leap_year.cpp

  int numDays(int month, int year)
  {
      if ( (month == 1 ) || (month == 3 ) || (month == 5 ) || (month == 7 ) || (month == 8 ) || 
          (month == 10 ) || (month == 12 ) )
      {
          return 31;
      }
      if (month == 2) 
      {
          if ( year % 4 != 0 )
          {
              return 28;
          }
          else if ( year % 100 != 0 )
          {
              return 29;
          }
          else if ( year % 400 != 0 )
          {
              return 28;
          }
          else
          {
              return 29;
          }
      }
      return 30;
  }