Created
January 8, 2017 20:28
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Star (URI1233): [ Intermediario / Matematica ] É possivel ver que se um numero K tem algum fator comum com N, entao ele ira voltar para a posicao inicial em alguma rodada. Alem disso, para cada coprimo X de N, as estrelas formadas por X e N - X sao iguais. Dessa forma, o resultado final é phi(N) / 2. |
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