p to f

#include <stdio.h>

int sum(int a, int b) {
  return a + b;
}

int dif(int a, int b) {
  return a - b;
}

int mul(int a, int b) {
  return a * b;
}

int div(int a, int b) {
  return a / b;
}

int main() {
  int (*p[4])(int, int) = {sum, dif, mul, div};
  for (int i = 0; i < 4; i++) {
    printf("%d\n", (*p[i])(1, 2));
  }
  return 0;
}