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 (*fp)(int, int);
     fp=add;

     int (*fp1)(int, int);
     fp1=sub;

     int (*fp2)(int, int);
     fp2=mul;

     int (*fp3)(int, int);
     fp3=divide;

     int array[4]={fp(a,b),fp1(a,b),fp2(a,b),fp3(a,b)};

    return array[cmd];
}

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