JZPGYZ - Sevenk Love Oimaster
Oimaster and Sevenk love each other.
But recently, Sevenk heard that a girl named ChuYuXun was dating with Oimaster.
As a woman's nature, Sevenk felt angry and began to check Oimaster's online talk with ChuYuXun. Oimaster talked with ChuYuXun n times, and each online talk actually is a string. Sevenk asks q questions like this, "how many strings in Oimaster's online talk contain this string as their substrings?"
Input
There are two integers in the first line, the number of strings n and the number of questions q. And n lines follow, each of them is a string describing Oimaster's online talk. And q lines follow, each of them is a question. n <= 10000, q <= 60000 the total length of n strings <= 100000, the total length of q question strings <= 360000
Output
For each question, output the answer in one line.
Example
Input: 3 3 hi,I'mChuYuXun..YouaresohandsomethatIfallinlovewithyou butIloveSevenk..you'dbettergoaway 55555555555 ChuYuXun you 55555555 Output: 1 2 1
hide comments
Garg Ankit:
2010-12-19 22:15:04
the last test case in the example above should yield the answer 4(according to me). Can anyone explain how is it 1? |
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Robert Gerbicz:
2010-12-19 22:03:18
After about ~20 sigabrt I've discovered that assert(0<=n&&0<=q); gets also runtime error, what is a big mistake.
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mike_nzk:
2010-12-19 06:29:08
I used an O(total_length_of_question_strings*log(total_length_of_n_strings)) algorithm and got AC. The time limit is not strict at all :) Last edit: 2010-12-19 06:30:30 |
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Siarhei Kulik:
2010-12-18 20:41:52
Can O(total_length_of_question_strings*log(total_length_of_n_strings)) pass or should I search for a better algo? Last edit: 2010-12-18 20:42:13 |
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[Trichromatic] XilinX:
2010-12-18 18:18:05
I think brute-force can not pass it with 2 second time limit, if the test data is well-designed. This problem is "E - Dominating Patterns" from ACM ICPC Asia Regional Contest, Hefei 2009/2010. (Even though in the real-time contest KMP algorithm can easily pass.) Last edit: 2010-12-18 19:38:06 |
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[Trichromatic] XilinX:
2010-12-18 16:21:26
Why not 2 seconds?
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Tom Chen:
2010-12-18 15:11:15
I change the time limit to 1.5s...maybe old one is too strict.. |
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Tom Chen:
2010-12-18 12:02:26
now testcases are added...sorry for inconvenience... Last edit: 2010-12-18 11:57:00 |
Added by: | Tom Chen |
Date: | 2010-12-18 |
Time limit: | 0.100s-1s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All except: ASM64 |
Resource: | own problem |