Thread: global vs static variable

I see a difference between global and static variables These two variables do the same thing. But the theory says that these two are different

Code:

#include <stdio.h>

static int i = 0;
 


void m() {
static int j = 0;
      j++;
	  printf("%d \n", j);
}


int main() {
    m();
    m();
	
	i++; 
	printf("%d \n", i);
	i++;
	printf("%d \n", i);
  
    return 0;
}

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