declaration of variables with same name as global,local and static

Question

I have the following code snippet and I have to analyse what the output will be:

#include 

  void f(int d);

  int a = 1, b = 2, c = 3, d = 4         


        

Answer 1

int a = 1, b = 2, c = 3, d = 4; ---> Global variables

int main(){
    int a = 5, c = 6;         ---> Shadows the global `a` and `c`

....

void f(int d){
    static int a = 0;         ---> local static variable visible only inside `f`

...