applebasketdlg.cpp

采用visual c++语言解决苹果和篮子问题。

// AppleBasketDlg.cpp : implementation file
//

#include "stdafx.h"
#include "AppleBasket.h"
#include "AppleBasketDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAppleBasketDlg dialog

CAppleBasketDlg::CAppleBasketDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CAppleBasketDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CAppleBasketDlg)
	m_iApple = 0;
	m_iBasket = 0;
	m_iResult = 0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CAppleBasketDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAppleBasketDlg)
	DDX_Control(pDX, IDC_LIST_RESULT, m_lstResult);
	DDX_Text(pDX, IDC_EDIT_APPLE, m_iApple);
	DDX_Text(pDX, IDC_EDIT_BASKET, m_iBasket);
	DDX_Text(pDX, IDC_EDIT_RESULT, m_iResult);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAppleBasketDlg, CDialog)
	//{{AFX_MSG_MAP(CAppleBasketDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BTN_CALC, OnBtnCalc)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CAppleBasketDlg message handlers

BOOL CAppleBasketDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CAppleBasketDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CAppleBasketDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CAppleBasketDlg::OnBtnCalc() 
{
    m_lstResult.ResetContent();
    UpdateData(TRUE);
    m_iResult=0;
    Calculate(m_iApple,m_iBasket,0,m_iResult);
    UpdateData(FALSE);
}


void CAppleBasketDlg::Calculate(int iApple, int iBasket, int iPreApple, int &iResult)
{
    int      iMaxApPerBsk;
    CString  str;
    int      i;

    iMaxApPerBsk=iApple/iBasket;
    for (i=0;i<=iMaxApPerBsk;i++)
    {
        if (i>=iPreApple)
        {
            if (iBasket>2)
                Calculate(iApple-i,iBasket-1,i,iResult);
             else
             {
                str.Format("%2d-%2d",i,iApple-i);
                m_lstResult.InsertString(iResult,str);
                iResult++;
            }
        }
    }
    return ;
}