Program Challenge 4
Here is the forum thread for the 4th Program Challenge!
Good Luck!
Program Challenge 4
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» Projects & Contests / Program Challenges
» Program Challenge 4
Summary:
Have the user input a number, and then convert it to the appropriate Roman numerals. You should include support for the main Roman numerals: I (1), V (5), X (10), L (50), C (100), D (500), and M (1000). You don't have to worry about decimals or negative numbers, but your program should be able to handle numbers as large as 10,000.
hasnt that already have been made, in both Omnicalc and in the program "Blah"?
http://www.ticalc.org/archives/files/fileinfo/361/36130.html
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KC2ZOF
Is not Omnicalc assembly, and "Blah" huge? Let's do something small enough to use with anything else.
/Socks
no… only part of BLAH is the roman numeral changer. the rest is math and stuff
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KC2ZOF
Well I'm in for it, I've got a program written already, just one question though: Should it convert something like "IIII" to "IV"? Currently mine doesn't but, it wouldn't be a problem really. It'll just add some memory which wouldn't really be necessary. In any case, I'm in.
I would say that it is necessary, because they are supposed to be Roman Numerals.
Or do you mean a person types in "IIII"? In which case it is unnecessary.
All the program needs to do is convert appropriate base 10 integers into Roman numerals. Not the reverse, and nothing else.
I look forward to your program though!
Cheers ~ James Kanjo
I understand that you input 27 and it returns XXVII, that wasn't the question. You answered it though. The file is uploaded and pending.
(account deleted)Oops, I accidentally made an extra account and accidentally posted with it. (I mix up my emails sometimes -_-) Disregard this.
There is a way to delete your second account.
Go to https://www.wikidot.com/account:you
Click "Account settings"
Then click "Delete account"
Is this program challenge still open?
No, sorry about that. But by all means attempt the challenge to improve your own programming skills (it is an achievement in itself).
I made a program 6 months ago that did exactly that. Darn, I wish I'd submitted it!
ive got a submission for it post it as soon as it gets approved plus its much more optimized than blah
edit:its up now
I've just tested it. It works quite nicely, but when I input 10000, which is the ceiling of the challenge, it gave me a domain error. Looks like you'll need to work that out and update it.
And, one other question. Why the ClrHome in the beginning? It seems unnecessary, and takes up space.
/Socks
ok fixed that put E10 instead of E4 for test lol and the clearhome is just form of habit i like a clear screen if someone could show me how to update a file ill put up new one
or just go to the line of code about a screen into it where it says If X=E10 change that to If X=E4
I'll submit my program pretty soon after I debug it.
Also, what if the user inputs a number, say 9858, and the Roman numerals are too long to be displayed since the home screen is only 16 characters wide. Should it then be displayed on the next line?
you could always display it on a pause then it would scroll
I'd say wrap around is best, since an Output( command does that w/out any additional code.
/Socks
Why not just output as answer?
because 9858 displays as
MMMMMMMMMDCCCLV…
when its actully
MMMMMMMMMDCCCLVIII
I am aware of that, I was just saying that it would be incredibly easy to output as answer (or even a string variable) and just let the user type "Ans" to scroll through it, that's how a function would work. It also takes less space.
I'm not sure what you guys are suggesting. If you used Output, and had the answer as a string, it would automatically wrap the answer for you.
I submitted my file!
I think my program will be the only one without using any string variables.
I've made my program too- just give me some time to upload it (time which I do not have now).
\Mapar007
Its the 21st and three people have added files. So this challenge should be getting a judgment day soon.
The participants list need to be updated I've seen:
noahbaby94(Me)
Zaphod_Beeblebrox
patriotsfan
Mapar007?
participating.
Edit: DP?
Yes, I was ready yesterday, but like you have questioned, I am still waiting for Mapar007 to upload.
I like the new DP by the way! ;)
James,
I just whipped up a solution and PMed it to you. Let me know if you'll accept it (being slightly late). I hope you'll take it, cause some of the coding in there was pretty slick =D
Edit: on second thought, seeing as how all the other entries are available publicly, I'll just post mine here. (I do not currently have access to a link cable.)
:Prompt N
:"_→Str0
:For(X,0,int(log(N
:10fPart(N/10→Z
:While Z
:sum({4.1,4.1,9.2}(Z={4,5,9→T
:sub("IVXLCDMvxlcdmni",2X+10fPart(T)+1,1)+Str0→Str0
:abs(Z-1-int(T→Z
:End
:int(N/10→N
:End
:Str0The string "IVXLCDMvxlcdmni" specifies the letters used in the numerals. The longer you make the string, the more digits the program can handle. To satisfy the program requirements, the string must have at least as many characters as "IVXLCDMvx"; everything else is extra digit support.
One thought on that - Using spaces would use less space than lower-case letters - each lower case letter is two bytes.
/Socks
Yes, that's true. Or you could replace them with arbitrary uppercase letters; something like "IVXLCDMNABYZQRST". That would be more functional than just spaces, as it supports more digits. I like the lower-case letters because it's the most obvious extension of the Roman numeral system (in my opinion).
And with that, I am closing the contest to submissions and beginning the judging process.
Though, patriotsfan, I can't find yours. Care to tell me where it is?
Never mind, my bad. Didn't think to look on the second page.
/Socks
Why wasn't my entry listed for challenge 4? I submitted it on Sep 24 and you closed submissions on Sep 26. Did you notice my program?
In case you haven't tried it, my program does support displaying 4 as IV, 40 as XL, 400 as CD, 4000 as Mv, and so on, for as many digits as you want. Same with 9s: 9 = IX, 90 = XC, 900 = CM, etc. I mention this because in your appraisal you mention a program 129 bytes in size that lost because it wrote 4 as IIII and didn't write 10,000 properly. As far as I know, my program is the only entry that is near 129 bytes, and I'm not sure if you got that right.
Your entry wasn't listed for challenge 4 because I accidentally missed it whilst upgrading the framework — sorry!
I have just listed it now for you.
I believe Socks reviewed your program, but to make sure I will check with him.
I'm not sure if I got it myself, it very well coud have been lost somewhere.
If you post a link, I'll check it out, and see how you score.
If it's as good as it sounds, you may even be given the winner's spot.
/Socks
Ah, I see. Here is the solution: http://tibasicdev.wikidot.com/challenges:10
Sorry for the late reply.
/forum/t-86719/program-challenge-4#post-