#include<iostream> //include input/output#include<windows.h> //include windows.h so we can use "Sleep"using namespace::std; //set it so we are using the std namespaceint main(){ int CountTime = 0; //local varialbe so we can hold the count time cout<<"How long would you like to countdown?"<<endl; //prompt the user cin>>CountTime;//get the user input, which is the time to count down //count down from 'CountTime' for(int j = CountTime; j != 0;) {	//print the current value,	cout<<j<<endl;	//Sleep for one second	Sleep(1000);	//and count down one.	--j; }//alert usercout<<"Time's up!"<<endl;//exit the program.return 0;}