ameyanator's blog

Help needed to solve SPOJ question ADACYCLE. (Getting TLE)
By ameyanator, history, 7 years ago, In English

I've been trying to solve this question, but I keep on getting a TLE. At first I had an O(V*(E+V)) approach (link). Then I optimized my code so that I store the results of other nodes while calculating the answer of some node. (link). I'm still getting an TLE.

Can anyone please suggest another optimization/approach for this question so that I can get an AC?

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

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7 years ago, # |
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Urm anyone please?!

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7 years ago, # |
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Either adding cout.tie(0) or using scanf/printfmay work :).

UPD: No, it's not any of them, I tried.

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7 years ago, # |
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Your solution's complexity seems to be O(V3).

in worst case

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    7 years ago, # ^ |
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    Yes you are right and that is why I'm getting a TLE. :(.

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7 years ago, # |
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Update Solved the question. All it required was an optimization — Inside our bfs we need to consider only those nodes that the current node stems out to. We can preprocess this or use adjacency list representation.

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