194. Command Dispatch Table

#include <iostream>

// Global command functions
void cmdReset() { std::cout << "System Reset" << std::endl; }
void cmdStart() { std::cout << "System Start" << std::endl; }
void cmdStop()  { std::cout << "System Stop" << std::endl; }

int main() {

    void (*dispatchTable[])() = {cmdReset, cmdStart, cmdStop};
    
    int N;
    if (!(std::cin >> N)) return 0;

    for (int i = 0; i < N; ++i) {
        int cmdID;
        std::cin >> cmdID;

        if(cmdID >= 0 && cmdID < 3){
            dispatchTable[cmdID]();
        }
        else{
            std::cout << "Invalid Command" << std::endl;
        }
    }
    return 0;
}