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Diffstat (limited to 'H34.hs')
-rw-r--r-- | H34.hs | 3 |
1 files changed, 2 insertions, 1 deletions
@@ -1,3 +1,4 @@ -- http://en.wikipedia.org/wiki/Euler%27s_totient_function -totient :: Integral a => a -> Bool + +totient :: (Integral a) => a -> Int totient x = length $ filter ((==1).(gcd x)) [1..x] |