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Topk-1 CPU #300
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Topk-1 CPU #300
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Added TopK-1 for CPU.
Testing:
There are likely not enough unit tests, however, I have done further testing against a naive implementation in another branch. If needed I can write more unit tests. I will PR the other branch depending on issue #299.
Algorithm:
Uses quickselect for expected O(n) complexity, however, the pivot is not yet randomized.