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From: Paul Rubin <no.email@nospam.invalid>
Newsgroups: comp.lang.python,comp.lang.lisp
Subject: Re: diff1(x) in Python: True if all adjacent items differ by 1, False otherwise.
Date: Sat, 15 Jun 2024 14:30:56 -0700
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HenHanna <HenHanna@devnull.tb> writes:
> def diff1(x):
>     if len(x) <= 1: return True
>     for i in range(len(x) - 1):
>         if abs(x[i] - x[i+1]) != 1:    return False
>     return True

def diff2(x):
  return all(abs(a-b)==1) for a,b in zip(x,x[1:]))