Why static variables are initialized by only constant? Why we can't initialized it by a other variables?

Question

https://code.sololearn.com/cJaVLyUklS34/?ref=app

Answer 1

What do you mean?

#include <stdio.h>

int main() {

static int p;

int c = 12;

p = c;

printf("%d", p);//12

return 0;
}

Answer 2

if we use -

int c=12;
static int p=c;
// Compiling error

Answer 3

Do this-
int c = 12;
static int p;
p = c;

You have to declare static first then initialize it.