How to properly use a bool function in c++

Question

I am working on a code project that wants me to use a boolean function but the lessons till now used ether int functions or void functions so I can't figure out how to get it to return anything no matter what I try it just says no output

Answer 1

Billy Stanley

Do num = num / 10
In while loop after backnum

And initialise backnum with 0

bool isPalindrome(int x) {
//complete the function
int num = x, backnum = 0, remainder = 0;

while (num != 0) {
remainder = num % 10;
backnum = backnum * 10 + remainder;
num = num / 10;
}

return backnum == x;
}

Answer 2

It seems that your "while" is an infinite loop, since num is never updated.

Answer 3

Thank you

Answer 4

My code

#include <iostream>
using namespace std;

bool isPalindrome(int x) {
//complete the function
int num = x, remainder, backnum;

while (num != 0) {
remainder = num % 10;
backnum = remainder + (backnum *10);

}
if (backnum == x) {
return true ;

}
else {
return false ;
}

}

int main() {
int n;
cin >>n;

if(isPalindrome(n)) {
cout <<n<<" is a palindrome";
}
else {
cout << n<<" is NOT a palindrome";
}
return 0;
}