To print following series 1 3 9 27 81....n
Source Code #include <iostream> using namespace std; void main () { int i=1; int ans=1; int upperlimit; cout<< "Please enter the uper limit :" ; cin>>upperlimit; while (i<=2 && ans<=upperlimit) // infinite loop and a conditional loop { cout<<ans<< "\t" ; ans=ans*3; } }