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SUMUP - Sum the Series |
Nilendu is a brilliant student of Mathematics and always scores A+ in it. His professor RamjiLal is quite impressed seeing his mathematical skills and asks him to sum the following series:
1/3 + 2/21 + 3/91 + 4/273 + .....
But the fact is Nilendu is quite lazy to do his assignment. He has to watch a film and many other activities to do. So he asks you for your help. Will you be able to solve it ??
Input
Input consists of t (number of test cases), then t line follows, each containing an integer N (1 <= N <= 10,000).
Output
A single line containing the sum upto Nth integer (rounded upto 5 digits)
Example
Input: 5Edit: The score is your source length. The smaller your code is, the more point you will get. All the solutions have been rejudged !!!
1
2
3
4
5
Output: 0.33333
0.42857
0.46154
0.47619
0.48387
| Added by: | Better late than never !!! |
| Date: | 2012-06-20 |
| Time limit: | 1s |
| Source limit: | 50000B |
| Memory limit: | 1536MB |
| Cluster: | Cube (Intel G860) |
| Languages: | All except: ASM64 |
| Resource: | RamjiLal Sir |
hide comments
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2013-08-01 02:20:32 Mostafa 36a2
@Mitch have a look :) |
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2013-07-31 09:40:04 ওয়াসী (Wasi)
wonder how to cut a byte off from my formula! |
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2013-07-30 23:34:45 Mostafa 36a2
I think this should be moved to riddle section ! But maybe it's easy for riddle ,good for Challenge :p Last edit: 2013-07-31 02:00:07 |
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2013-07-30 18:41:02 pranjuldb
easy problem, just need to find general term... !!!!! |
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2013-05-25 06:57:34 XeRoN!X
Looks like judge is broken, my 36 B solution shows 0 as score. --ans(francky)--> Info reported to admin. And I confirm the bug, my python solution gave me a 0 score too... (I disqualified it after the test). Re( xeronix ): It's fixed now but rejudge is required, i've sent a mail to admin with list of problems affected which need rejudging. Last edit: 2013-05-24 18:39:58 |
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2013-05-25 06:57:34 Mitch Schwartz
@Dominique: Yes, that's not a bug, the problem setter just chose to "Merge all languages in ranklist" so that only a user's top submission would be displayed in the overall rank list. And I've submitted my Ruby solution (which I wrote at the same time as Python but didn't bother submitting then because it wasn't an improvement over Python) to give you some motivation to save a byte. :) |
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2013-05-25 06:57:34 Dominique VAILLANT
Comparing these two links: http://www.spoj.com/ranks/SUMUP/start=20 http://www.spoj.com/ranks/SUMUP/lang=PYTH%202.7 we see that the results of 53 for Mitch Schwartz and numerix doesn't appear in the first one (all languages). @Mitch: Thanks for your response. Very motivating indeed! Last edit: 2013-05-12 04:03:14 |
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2013-05-25 06:57:34 Anuj_LuckFove!
Removed after AC! Last edit: 2013-01-10 10:46:54 |
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2013-05-25 06:57:34 Cain
input: 3 315 316 1000 output: 0.49999 0.50000 0.50000 |
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2013-05-25 06:57:34 K.P.
output..? 315 316 1000 Last edit: 2012-11-28 16:12:07 |
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