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[])(int, int) = {add, sub, mul, divide};
    if(cmd == 0)
    {
        return arr[0](a,b);
    }
    else if(cmd == 1)
    {
        return arr[1](a,b);
    }
    else if(cmd == 2)
    {
        return arr[2](a,b);
    }
    else
    {
        return arr[3](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