Safrout's blog

SPOJ-12713. Strings STRSOCU
By Safrout, 12 years ago, In English

I have wrote an O(n^2) solution for this problem

http://www.spoj.com/problems/STRSOCU/

here is my code

http://ideone.com/hEO6jv

What could be a better Solution for it?

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12 years ago, hide # |
 
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I tried to optimize it a little bit and write it in C++ but it also gives TLE http://ideone.com/fb4hv5 I do not concatenate n times but i give the Z-function a number k to start matching from the character at index k It works correctly and the Z-values are correct but the time is too much

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12 years ago, hide # |
 
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This is the latest thing I did

I think I can't optimize more in an O(n^2) code

http://ideone.com/9OzGGX

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12 years ago, hide # |
 
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O(n) solution with suffix automaton: 2bc3OA

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