Program to shut down your PC (for win 7)

#include <stdio.h>
#include <stdlib.h>

main()
{
char ch;
printf("Do you want to shutdown your computer now (y/n)\n");
scanf("%c",&ch);
if (ch == 'y' || ch == 'Y')
system("C:\\WINDOWS\\System32\\shutdown /s");
return 0;
}