Question

C++ Code Writing Prompt:

Countdown: Write a countdown program that prompts the user for a max value (i.e. 30). Print out a countdown from that number down to zero, then print “blast off!”

Answer 1

code:

#include<iostream>
using namespace std;
int main()
{
int n,i;
cout << "Enter a number which is less than 30 :";
cin >> n;
if(n>30)
{
cout<<"Enter a number less than 30";
}
for(i=n;i>=0;i--)
{
cout<<i<<" "<<"\n";
}
cout<<"blast off!";
return 0;
}

using namespace std; 3 int main() 4-{ 5 int n,i; 6 cout << "Enter a number which is less than 30 :"; 7 cin >> n; 8 if(n>30) 9- 10 cout<<"Enter a number less than 30"; 11 12 for(i=n;i>=0;i--)| 13 14 cout<<i<<" "<<"\n"; 15 16 cout<<"blast off!"; 17 return 0; 18 } input Enter a number which is less than 30 : 5 5 4 { } { } 3 2 1 0 ntact blast off!

  
Enter a number which is less than 30 :10 10 9 8 < 7 6 5 4 3 2 1 0 blast off!