Namespace Alias Usage

#include <iostream>
using namespace std;

// Long vendor HAL namespace
namespace VendorMegaChipCorporationUltraSeries9000_HardwareClockControlModule {
    void enableClock()  { cout << "CLOCK ENABLED"; }
    void disableClock() { cout << "CLOCK DISABLED"; }
}

// Create alias ClockHAL = <long vendor namespace>
namespace ClockHAL=VendorMegaChipCorporationUltraSeries9000_HardwareClockControlModule;
int main() {
    int cmd;
    cin >> cmd;

    // Write required calls here
    cmd==1 ? VendorMegaChipCorporationUltraSeries9000_HardwareClockControlModule::enableClock() : ClockHAL::disableClock();
    return 0;
}

Solving Approach