Use last element as QuickSort pivot#2185
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Summary
array.pop()instead of usingarray.shift()from the front of the array.62to85.Closes #265.
Verification
npx jest src/algorithms/sorting/quick-sort/__test__/QuickSort.test.js --runInBandnpx eslint src/algorithms/sorting/quick-sort/QuickSort.js src/algorithms/sorting/quick-sort/__test__/QuickSort.test.jsNote
Related: #171 proposes a broader median-of-three QuickSort pivot change and also touches Kruskal. This PR is intentionally narrower and only addresses the
shift()pivot cost described in #265.