Page 21 - INTRODUCTION_TO_C++_Neat
P. 21

GLOBAL VARIABLES

 #include <iostream.h>
             // Global variable declaration:
                          Int g;

 int main ()
 {

             // Local variable declaration:
                          int a, b;

              // actual initialization
                        a = 10;
                        b = 20;

    g = a + b;
    cout << g;
    return 0;
 }
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