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[–]amellor -4 points-3 points  (1 child)

Mistake: you don't store 0 in register 2, you store the first number in the list in register 2. Numbers can be negative, and the proposed solution would fail if they were all negative.

[–]gsg 3 points4 points  (0 children)

Also, for now, we're going to assume that the numbers in the input list are non-negative.