C / C++ / MFC

void CAlertmakerDlg::OnSelchangeFont()  //on selection of combo box option<br />
{<br />
	UpdateData(); <br />
<br />
	if( m_fontnumber < 0 ) return;  //m_fontnumber is an int that holds the selected number in the combo box.<br />
<br />
	CString str;<br />
	m_fontlist.GetLBText( m_fontnumber, str );<br />
}<br />

#include <iostream.h><br />
#include <math.h><br />
#include <ctime><br />
<br />
//Function Prototypes<br />
void PersonalDisplay(void);<br />
int powerNOTRECURSIVE(int x, unsigned n);<br />
int powerRECURSIVE(int n, int k);<br />
<br />
void main(void){<br />
<br />
<br />
long ans=0;<br />
long base=0;<br />
long exponent=0;<br />
<br />
clock_t startclock = 0;<br />
clock_t endclock = 0;<br />
<br />
<br />
<br />
cout<<endl;<br />
<br />
cout<<"Enter the base: "<<endl;<br />
cin>>base; <br />
cout<<endl;<br />
cout<<"Enter the exponent: "<<endl;<br />
cin>>exponent; <br />
cout<<endl;<br />
<br />
  <br />
cout<<"Calling the RECURSIVE function...."<<endl;<br />
startclock = clock(); //Start sys clock<br />
ans=powerRECURSIVE(base,exponent);<br />
endclock = clock(); //End sys clock<br />
cout << "NonRecursive Time: " << (endclock-startclock) << endl;<br />
cout<<ans;<br />
}<br />
<br />
//Recursive Approach<br />
int powerRECURSIVE(int n, int k){<br />
	if(k==0) return 1;<br />
	int m=k>>1;<br />
	int z=powerRECURSIVE(n,m)*powerRECURSIVE(n,m);<br />
	if(k && 1)return z*n;<br />
	return z;<br />
}