News for hackers. Stuff that matters.
Re:That XOR Trick (2020) by j-pb on Monday January 18, 2021 @09:56AM (#25822343)
Premise: A is containing all values in range [1, 4] except one:

Let's say that, without loss of generality:

> 1 ^ 2 ^ 3 ^ 4 ^ A[0]=1 ^ A[1]=2 ^ A[2]=3 ^ A[3]=4

However, A is now missing no value. Contradiction.

∎

There are no comments on this comment yet.