Function Pointer Dispatch Table

Code

#include <stdio.h>
#include <stdlib.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 (*func[])(int, int)={add, sub, mul, divide};
    int res = func[cmd](a,b);
    //int res =0;
    /*switch(cmd){
        case 0: res = add(a,b); break;
        case 1: res = sub(a,b); break;
        case 2: res = mul(a,b); break;
        case 3: res = divide(a,b); break;
        default: exit(0);
    }*/
    return res;
}

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