Contents

def collatz_steps(n):
    if n <= 0:
        raise ValueError("input should be positive")

    step_count = 0
    while n > 1:
        if is_odd(n):
            n = n * 3 + 1
        else:
            n = n / 2
        step_count += 1

    return step_count


def is_odd(n):
    return n % 2 == 1

Version data entries

71 entries across 71 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.179	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.178	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.177	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.176	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.175	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.174	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.173	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.172	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.171	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.170	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.169	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.167	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.166	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.165	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.164	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.163	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.162	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.161	tracks/python/exercises/collatz-conjecture/example.py
trackler-2.2.1.160	tracks/python/exercises/collatz-conjecture/example.py