Is Armstrong Number : Problem Set

#1

What does the output format as boolean mean ?

#2

Hi Krishanu ,
Output format as boolean means you should print “true” if the entered number is an Armstrong Number and “false” if its not (Without the double quotes).

#3

Can you please give an example how can we use it to print true and false without using double quotes,by using if…else statement?

#4

Lets say I have written a function named check which returns a bool type .

bool check(int n)
{

}

Then in the main ( ) , I call this check function and then print “true” or “false” based on the value returned by this function

int n;
cin >> n;
if( check( n ) )
{ cout << “true” ; }
else
{ cout << “false” ; }

Alternatively you can use ‘boolalpha’ with cout to directly print “true” and “false” as well .

cout << boolalpha << check(n) ;

This will directly print “true” or “false” based on whatever check( ) returns.