| author | Christian Urban <urbanc@in.tum.de> |
| Mon, 15 Jan 2018 23:15:34 +0000 | |
| changeset 167 | 1bbd4db36151 |
| parent 144 | 41a2b4f2c30c |
| child 171 | 2545bdf5ace0 |
| permissions | -rw-r--r-- |
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// Part 1 about the 3n+1 conjecture |
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//================================== |
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package CW6a |
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object CW6a {
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def collatz(n: Long): Long = |
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if (n == 1) 1 else |
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if (n % 2 == 0) 1 + collatz(n / 2) else |
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1 + collatz(3 * n + 1) |
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def collatz_max(bnd: Long): (Long, Long) = {
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val all = for (i <- (1 to bnd.toInt).toList) yield collatz(i) |
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val max = all.max |
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(max, all.indexOf(max) + 1) |
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} |
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} |
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