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

    int (*arr[4])(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 if (cmd == 3){
        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