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thank for your good idea , i used phi(m*n) = phi(m)*phi(n) in myself code , i only wrong test case 0 and pass all test case other.
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Project Euler #70: Totient permutation
You are viewing a single comment's thread. Return to all comments →
thank for your good idea , i used phi(m*n) = phi(m)*phi(n) in myself code , i only wrong test case 0 and pass all test case other.