Consider the following C program:

#include <stdio.h>
#include <stdlib.h>
void f(int* q) {
    q = malloc(sizeof(int));
    *q = 45;
}
int main(void) {
    int i = 3;
    int* ptr = &i;
    f(ptr);
    printf("%d %d\n", i, *ptr);
    return 0;
}

Tick all the correct statements.