LGIC - LOGIC
Given a sequance of natural numbers.
Find N'th term of this sequence.
a1=2, a2=4, a3=11, a4=36, a5=147, a6=778 ... ... ... ... aN.
Input
Only one natural number 7<=N<20.
Output
One natural number. N'th term of the sequence.
Example
Input:
10
Output:
3629814
hide comments
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sharad mahajan:
2016-05-07 19:43:55
think with factorial
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kamran siddique:
2016-04-10 14:10:42
Not an Easy Trick at all !!!!! |
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beginner:
2015-02-14 21:45:09
AC in first go :) try to find the pattern ! |
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DIWAKAR BHARDWAJ:
2015-01-21 02:20:45
very easy trick |
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Minsuk Kim:
2015-01-21 02:20:45
lol took me a while to figure out the general formula hmmm |
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deepika:
2015-01-21 02:20:45
[removed. Don't provide answers and explanations in the comments section.] Last edit: 2014-11-07 20:04:18 |
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ISHANI:
2015-01-21 02:20:45
my AC complexity is O(N)
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Kanish_The_Vista:
2015-01-21 02:20:45
tricky question but weak test cases |
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Akash Gupta:
2015-01-21 02:20:45
whats the sequence ? |
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TCony:
2015-01-21 02:20:45
1 line in ruby, 36 bytes Last edit: 2014-02-13 08:47:58 |
| Added by: | Azat Taryhchiyev |
| Date: | 2012-02-15 |
| Time limit: | 1s |
| Source limit: | 50000B |
| Memory limit: | 1536MB |
| Cluster: | Cube (Intel G860) |
| Languages: | All |
| Resource: | KG Regional Contest |
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