438 - The Circumference of the Circle

All about problems in Volume 4. If there is a thread about your problem, please use it. If not, create one with its number in the subject.

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RC's
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Re: 438 - The Circumference of the Circle

Post by RC's » Wed Apr 02, 2008 5:30 pm

of course i define PI as what the problem states :
Here is my code, i don't know what's wrong... it makes me really confused..

Code: Select all

CUT... AC already
Last edited by RC's on Sun Apr 06, 2008 6:07 pm, edited 1 time in total.

Obaida
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Re: 438 - The Circumference of the Circle

Post by Obaida » Sun Apr 06, 2008 7:20 am

You Made a bad mistake,
What about "long double and scanf("%lf.....)
I think it should be scanf("%Lf......)
Remove your code after Ac...
try_try_try_try_&&&_try@try.com
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RC's
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Re: 438 - The Circumference of the Circle

Post by RC's » Sun Apr 06, 2008 6:09 pm

ic2.. you are right, it was my mistake... but when i ran it on MSVC it produced right answers.. i don't know if gcc doesn't...
it's compiler issue i think.. by the way, thanks..

Jan
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Re: 438 - The Circumference of the Circle

Post by Jan » Sun Apr 06, 2008 9:09 pm

I don't know which version of MSVC you are using. I use MSVC 6.0 which doesn't support (the actual!!) 'long double'. You can use 'long double' though. But it acts as ordinary 'double'. So, '%lf' works for both 'double' and 'long double' in MSVC 6.0 (since both are same here).
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RC's
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Re: 438 - The Circumference of the Circle

Post by RC's » Mon Apr 07, 2008 5:47 pm

I use MSVC 9.0 Express Edition... When I debug here, it produced correct answers, just the same answers as I used %lf for the input...
But i don't know why when I changed %lf to %Lf it got AC.. I didn't change any other code..

blackSajia
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Re: 438 - The Circumference of the Circle

Post by blackSajia » Wed Nov 12, 2008 6:25 am

Hello How r u everybody. I am getting wrong answer in 438. The code given bellow :

Code: Select all



Plz help me where the error occured and give some I/O data. :lol:
Last edited by blackSajia on Sat Nov 15, 2008 11:01 am, edited 1 time in total.

Obaida
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Re: 438 - The Circumference of the Circle

Post by Obaida » Wed Nov 12, 2008 9:28 am

you should use long double. :D
try_try_try_try_&&&_try@try.com
This may be the address of success.

lnr
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Re: 438 - The Circumference of the Circle

Post by lnr » Sun Jun 28, 2009 7:30 am

Is there any condition for a point to be on the circle?
I am trying to solve this problem using this equation.
x*x+y*y+2*f*x+2*g*y+c=0;

arifcsecu
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Re: 438 - The Circumference of the Circle

Post by arifcsecu » Thu Sep 02, 2010 11:03 pm

i got 11 times WA using x^2+y^2+gx+fy+c=0 equation method.
At last i got accepted using Sunny methods.

Thanks Sunny Bhi..
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avatar
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Re: 438 - The Circumference of the Circle

Post by avatar » Thu Nov 24, 2011 4:32 pm

i was trying to use the following algorithm but it gave me WA:
1.i considered the given three points to be the vertex of a triangle
2.then i found the centroid
3.so actually that is the center of the circle surrounding the triangle
4.then from the centroid i found distance of any vertex which is actually the radius
5.then i applied the formula for circumference

another thing i could not use long double :oops:
if i use it answer is always -2.0000000
but why?????????


can anyone have the idea please.................... :roll:

alimbubt
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Re: 438 - The Circumference of the Circle

Post by alimbubt » Tue Jan 01, 2013 10:09 pm

Input:

Code: Select all

-1.0 -1.0 -1.0 7.0 5.0 12.0
0.0 -50.0 50.0 50.0 0.0 0.0
2.0 56.0 41.0 28.0 23.0 91.0
Output:

Code: Select all

58.55
496.73
206.54
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triplemzim
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Re: 438 - The Circumference of the Circle

Post by triplemzim » Sat May 18, 2013 6:02 pm

Here is my code... I got 7 times wa why?? Plz help.

Code: Select all

ACCEPTED

thanks brianfry.... :)
Last edited by triplemzim on Fri Jul 26, 2013 12:15 am, edited 1 time in total.

brianfry713
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Re: 438 - The Circumference of the Circle

Post by brianfry713 » Tue May 21, 2013 4:19 am

Print a newline after each value.
Check input and AC output for thousands of problems on uDebug!

triplemzim
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Re: 438 - The Circumference of the Circle

Post by triplemzim » Fri Jul 26, 2013 12:16 am

brianfry713 wrote:Print a newline after each value.
thanks brianfry... got ac

Savage COOKS
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Re: 438 - The Circumference of the Circle

Post by Savage COOKS » Wed Feb 10, 2016 3:21 am

Hey everyone, first post ever here. Problem 438 seemed pretty straight forward with no crazy cases. The program was run with critical input, and any other input that could be thought of from the debug page. Everything comes back correct. An <<endl was put at the end of each printout, to make sure there was line break between numbers. An extra <<endl was added here or there to try to see if more line breaks were needed, all resulting in WA. Once again, the numerics do match all the data that has been plugged into the debugger. Anyone care to shed some light on this program? I am hoping it is something stupidly silly.

Code: Select all

I think it is fixed now...
Thanks!

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