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Re:Linked List Problems (2002) [pdf] by atsushin on Sunday November 26, 2017 @03:18AM (#15779976)
Hi! Just a question, since I've never been good with proofs. Why use the modulo operator in the while-loop? Couldn't we just test if i != j?
Re:Linked List Problems (2002) [pdf] by tomjakubowski on Sunday November 26, 2017 @03:37AM (#15780027)
The modulo represents the cycle.

Maybe it would be helpful to rewrite the loop with a condition as you described, and %= i and j with n after incrementing (by 1 or by 2) both variables in the loop body.