Program to illustrate Global Variables


      #include<iostream.h>
      #include<conio.h>
            int a, b, c ;                            // Global Variable Declaration
    void find_minimum ()
    {
        int min ;
        min = a ;
        if ( min > b )
            min = b ;
        if ( min > c )
            min = c ;
        cout << "\nThe minimum number is : "<<min ;
    }
    void main ()
    {      
        cout<< "\n Input three numbers : " ;
        cin>>a;
        cin>>b;
        cin>>c;       
        find_minimum () ;
        getch();
    }

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