This is a part of large question :

5.The result of the transformation f (explained in the following) applied month times in a row to the year. The transformation f sends a positive integer n to n/2 if n is even and to 3n+1 if n is odd. So if the year is 2007, we see that f(2007) = 6022. If the month is 1 we stop there. Otherwise we apply f again to 6022. We see that f(6022) = 3011 and we stop if the month is 2. And so on. If the month is 5, the value generated should be 13552, since f(3011) = 9034, f(9034) = 4517 and f(4517) = 13552.

I wrote a function for this question but it seems can not generate expected output, anyone can help me to work it out ,my code is following:

Make the program tell you what is seeing and what it is doing at each step;

For example, in main:

In the function:


Regards,

Dave

cheers .... davekw7x ....i 've already worked it out with ur hint , just let tran=year at the bottom of the function,then repeat it . Thanks a lot !!!!!

what was the final code output for that question? i tried 2 do the same thing and it only outputs the number two over 200 times then ends.

Here's how it works:

1. Post your code. Tell us what compiler you are using. If there were any compiler messages, paste them into the post. Don't edit; don't paraphrase --- give us the entire message(s).

2. Tell us exactly you gave it as an input

3. Tell us what you expected to get from the program. (Did you put any debug print statements to make the program tell you what it was doing?)

Regards,

Dave

c++
hey ok sorry im new to this, im trying to figure out what is happening in allens code. i inputted this but i have a feeling that i am missing some brackets somewhere along the line. i recieve no errors but my function just isnt agreeing with me.

as the function

int TransYear( int month, int year )
{
int tran;
tran = year;

for (int i = 1; i <= month; i++)
{
if
(tran % 2 == 0)
tran = tran / 2;
else
tran = 3 * tran + 1;
}


return tran;
}

in main

cout << TransFormer (year, month) << endl;



about two mins after posting this however i realised my mistake ...in which my main was returning (year, month) not month year.
cout << TransFormer (year, month) << endl;
change to
cout << TransFormer (month, year) << endl;

thanks for the help

That is why I try to get people to post the code. Sometimes in explaining things to others and pasting the code into a post, they actually look at it. I have done this (spotting a mistake after explaining it to someone else and before they actually responded) about a million times. Maybe more.


And if you hadn't spotted it, then the print statements that I showed in my previous post would have shouted it at you. Really; it would just have jumped off of the page and yelled in your ear. The point of the exercise is not just to write a program to do some trivial task, but to get people into the mindset of attacking a problem and using the two most important resources at their disposal to solve it:

1. The programmer's brain and the brain extension known as the optical nerve.
2. The program itself.


Regards,

Dave

"We can face our problem.
We can arrange such facts as we have with order and method."
Hercule Poirot
--- in Murder on the Orient Express