PROGRAM FOR SCOPE RESOLUTION OPERATOR

//diff c & c++
#include<iostream.h>
#include<conio.h>
int m=10;
void main()
{
  int m=20;
  clrscr();
  if(m==20)
  {
    int k=m,m=30;
    cout<<"k="<<k<<"\n";
    cout<<"m="<<m<<"\n";
    cout<<"::m="<<::m<<"\n";
  }
  cout<<"m="<<m<<"\n";
  cout<<"::m="<<::m<<"\n";
  getch();
}