1 #include <stdio.h> 2 3 int main(void)4 main(void) { 5 int (*f)(int ch); 6 f = putchar; 7 f('x'); 8 (*f)('x'); 9 (******f)("hehe"[2]); 10 f = &putchar; 11 ((((***f))))('y'); 12 printf("hmlol\n"); 13 } 14 15