Emsawy's blog

By Emsawy, history, 5 years ago, In English

559B - Equivalent Strings what is causing Time Limit ? - And what is the best solution to avoid TL ? - solution http://codeforces.com/contest/559/submission/13479349

 
 
 
 
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5 years ago, # |
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Auto comment: topic has been updated by Emsawy (previous revision, new revision, compare).

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5 years ago, # |
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Auto comment: topic has been updated by Emsawy (previous revision, new revision, compare).

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5 years ago, # |
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ur doing it in o(n2)

well there is a solution like urs that the only difference is u can find if two strings are the same with hash

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    5 years ago, # ^ |
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    I reads about hash but i can`t understand the relation between hash and the problem . but , I used the array of char instead of strings and get AC http://codeforces.com/contest/559/submission/13719791

    could you illustrate the relation between hash and the problem and send me your code for it .

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      5 years ago, # ^ |
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      well if tow strings are equal then their hash is equal ! and as hash is only a number u can check it in O(1)