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by kazinator
1388 days ago
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Offset-based lets you refer to an abstract location that is after the last element without resorting to n + 1. [ ] [ ] [ ] ... [ ]
0 1 2 3 n-1 n
We can regard this n as a "virtual zero", and then make it possible to index the n - 1 element also indexable as just -1. The index -n then aliases to 0. |
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