#include <stdio.h>
int main(){
int x = 30; // original x
printf(x in outer block: %d at %p\n, x, &x);
{
int x = 77; // new x, hides first x
printf(x in inner block: %d at %p\n, x, &x);
}
printf(x in outer block: %d at %p\n, x, &x);
while (x++ < 33) // original x
{
int x = 100; // new x, hides first x
x++;
printf(x in while loop: %d at %p\n, x, &x);
}
printf(x in outer block: %d at %p\n, x, &x);
return 0;
}
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