559B - Equivalent Strings what is causing Time Limit ? - And what is the best solution to avoid TL ? - solution http://codeforces.net/contest/559/submission/13479349
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my solution http://codeforces.net/contest/559/submission/13479349
Auto comment: topic has been updated by Emsawy (previous revision, new revision, compare).
Auto comment: topic has been updated by Emsawy (previous revision, new revision, compare).
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
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.net/contest/559/submission/13719791
could you illustrate the relation between hash and the problem and send me your code for it .
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)
thanks, I will try to do that .