3 ms·

Humans can't tell you whether this program will run forever on any particular (positive integer) input, or whether all inputs terminate. def collatz(n):

Humans can't tell you whether this program will run forever on any particular (positive integer) input, or whether all inputs terminate. def collatz(n): while n != 1: print(n) if n % 2 == 0: n = n // 2 else: n = n * 3 + 1 print(1)

kibibyte 6y ago
I think your indentation needs to be adjusted? Like so: def collatz(n): while n != 1: print(n) if n % 2 == 0: n = n // 2 else: n = n * 3 + 1 print(1) Otherwise, n = 1 terminates, and n != 1 gets stuck looping at lines 2-3.
Jyaif 6y ago
Thank you!