cplusplus.com
C++ : Forum : Beginners : Palindrome
 
cplusplus.com
Information
Documentation
Reference
Articles
Forum
Forum
Beginners
Windows Programming
UNIX/Linux Programming
General C++ Programming
Lounge
Jobs


solved Palindrome

DoomCarnage (40)
Whats wrong with my programme? the cmd does not show what it suppose to show.(My programme is to generate out palindrom from 11 to 88 . reverse and add the original number those which are not palindrome for a maximum of 6 time untill they become a palindrome)

Here is my main code....

# include <iostream>
# include <cstdlib>
using namespace std ;

int palindrome(int number) ;
bool check(int number) ;

int main (void)
{
int iteration , count ,temp ;
count = 0 ;
for (iteration = 1 ; iteration <= 6 ; iteration ++)
{
cout <<iteration
<<" iteration"
<< endl ;
for (int number = 10 ; number <=88 ; number ++)
if(!check(number))
do
{
temp = number ;
palindrome(number) ;
number = number + temp ;
if(!check(number))
count++ ;
}
while (count <=6) ;
if(count == iteration)
cout <<"number " ;
}
system("pause") ;
return 0 ;
}

bool check(int number)
{
int reverseno , N ;
reverseno = 0 ;
N = number ;

while (number != 0)
{
reverseno = reverseno * 10 + N%10 ;
N = N/10 ;
}
if (number == reverseno)
return true ;
else
return false ;
}
int palindrom(int number)
{
int reverseno , N ;
reverseno = 0 ;
N = number ;

while (number != 0)
{
reverseno = reverseno * 10 + N%10 ;
N = N/10 ;
}
return reverseno ;
}








Last edited on
jdd (95)
Typo. You defined the function palindrom.

I think the reason you're getting a link error is that you have a palindrome function prototype (in your header), so the compiler knows that the function exists. Because of the typo, though, it can't find the function definition.

EDIT:

I really wish you wouldn't edit the original post to correct the error that you originally asked about. Not only does it do a disservice to others that may have the same problem, it makes me look silly for answering a seemingly unrelated question.
Last edited on
jdd (95)
In response to your new question, you are doing a couple of suspicious things in your code. First, the palindrome
function returns an int, but you treat it as if it has a void return type (i.e. you do not make use of the return
value). Second, take a look at this for loop:
1
2
3
4
5
6
7
8
9
10
11
 
for (int number = 10 ; number <=88 ; number ++)
if(!check(number))
do
{
temp = number ;
palindrome(number) ;
number = number + temp ;
if(!check(number))
count++ ;
}
while (count <=6) ;

You increment number as you loop, but you also change it inside the loop. I
didn't look to see what is actually happening to the value of it, but I'm about 100% sure it's not what you expect.

Third, you create an infinite loop:
1
2
3
4
5
 
while (number != 0)
{
reverseno = reverseno * 10 + N%10 ;
N = N/10 ;
}
Last edited on
DoomCarnage (40)
Okay sorry about that... I will change it back. As for the programme, i am still working on it. But thanks anyway.
Last edited on
Topic archived. No new replies allowed.