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Why there so strict timelimit.
I solved this problem in OpenCup (where LT is 2 s). But for solve it there I need to make some optimization. Is it possible to increse timelimit to 2sec ?
My solution is O(NlogN).
Edited by author 01.04.2008 15:17 I also needed some minor optimizations to pass 1616 here which was accepted in OpenCup. AC 0.078 sec.
vector< vector<int> > and vector<int> get to big time ... I just delete edges with O(NlogN), but I understand how to do it with O(N). But I know O(M) solution for general but this solution don't use that we work with "cactus", I used it so have O(NlogN) solution. Who can tell me How to solve with O(n)? Just one DFS - 0.171 sec. even on vector<int> g[50000] Could somebody provide some tricky test cases?
Edit: Or maybe provide TC 3 or 10?
Edited by author 17.04.2011 09:46 can you give me some tests i've got 'wrong answer' for several times,
thank you very much! |
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