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 (*pAdd)(int,int)=add;
    int (*pSub)(int,int)=sub;
    int (*pMul)(int,int)=mul;
    int (*pDiv)(int,int)=divide;
    switch (cmd){
        case 0:{
            return pAdd(a,b);
        }
        case 1:{
            return pSub(a,b);
        }
        case 2:{
            return pMul(a,b);
        }
        case 3:{
            return pDiv(a,b);
        }

    }

    return 0;
}

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