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 (*fp1)(int, int) = add;
    int (*fp2)(int, int) = sub;
    int (*fp3)(int, int) = mul;
    int (*fp4)(int, int) = divide;

    int (*arr[4])(int, int) = {fp1, fp2, fp3, fp4};

    int (*fp)(int, int) = *(arr+cmd);

    return fp(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