ialwaysusethisaccount's blog

By ialwaysusethisaccount, 10 years ago, In English

http://codeforces.net/contest/472/problem/C

i dont understand the second test case. whatever handle we choose, the order will always be 2 3 1, the how the answer for 3 1 2 can be yes?

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10 years ago, # |
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What if gaoyuan chen uses chen, gennady korotkevich uses gennady and petr mitrichev uses petr? In that case, the order would be 3 1 2 right? This Permutation is possible hence the answer.