What is the purpose of extern storage specifier.

1.	What is the purpose of extern storage specifier.
Answer» Used to resolve the scope of global symbol #include <iostream>using namespace std;main() { extern int i; cout<<i<<endl;}int i = 20;

Answer»

Used to resolve the scope of global symbol

#include <iostream>using namespace std;main() {   extern int i;         cout<<i<<endl;}int i = 20;

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