哪位高手能给一个用C语言写的万年历

// Yuna_2006_10_16
// A program of a celinder
#include <iostream>
using std::cin;
using std::cout;
using std::endl;

// the use of setw
#include <iomanip>
using std::setw;

#define BEGINYEAR 2000 // the year i use to begin
#define BEGINDAY 6 // 2000`s first day
const int aiMounth[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }; // everymounth`s days

// the fuction i call
int GetBeginDay( int, int ); // Get the first day of the mounth
int GetDays( int, int ); // Get the number of the days in a mounth
void PrintTitle(); // print the title
void PrintDate( int, int ); // print the date
int GetDaysOfaYear( int ); // get the number of days of a year

// the main begin here
int main()
{
int iYear, iMounth, iBeginDayOfaWeek, iDays;

// prompt and get the paramters i need
cout << "P