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+22
"10-20 times slower" is definitely not about C# :) |
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+15
It looks like the only difference in kissbuaa's and xiaodao's 2000s is the link in the beginning.. ..which is pointing to the same solution, yep. http://codeforces.me/contest/273/submission/3115085 |
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+5
One more approach is to use a DFS which counts the number of simple loops in the graph.
Having performed it you just check that only one loop was found and that the graph is connected. However, m = n check is surely more elegant way :) |
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