Cant understand why my C program doesnt work..?

Question

Why does this program print 0, not 1? Seems that it doesnt step into the function..

#include
void a(void);
int i=0;
int main(void){
a;
printf("%d",i);
return(0);
}

void a(void){
i=1;
}

Answer 1

you don't call the function a.

you write
a;

instead of
a();

Answer 2

u have force i=0 always with the statement
int i=0;

Answer 3

Your initializing your variable "I" to "0" therefore its printing "0".