Function Pointer Dispatch Table

Code

#include <stdio.h>

int add(int a, int b) { return a + b; }
int sub(int a, int b) { return a - b; }
int mul(int a, int b) { return a * b; }
int divide(int a, int b) { return a / b; }

int execute_command(int a, int b, int cmd) {
  // Your logic here using function pointer array

  int (*arr[4])(int, int) = {&add, &sub, &mul, &divide};

  return arr[cmd](a, b);
}

int main() {
  int a, b, cmd;
  scanf("%d %d %d", &a, &b, &cmd);

  int result = execute_command(a, b, cmd);
  printf("%d", result);

  return 0;
}

Solving Approach