SHUT DOWN CODE IN C.

This program is modification/implementation  of  last program "of  shutdown your computer through programming"
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#include<windows.h>
#include<iostream>
using namespace std;
int main()
{
int x;
cout<<"x=1-shutdown\n";
cout<<"x=2-logoff\n";
cout<<"x=3-restart\n";
cout<<"x=4-hibbernet\n";
cin>>x;


switch(x)
{
case 1: system("shutdown/s");
break;
case 2: system("shutdown/l");
break;
case 3: system("shutdown/r");
break;
case 4: system("shutdown/h");
break;
}
return 0;
}