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#376
If the
percentile
is 0 or 1, it's unnecessary to sort all the elements in the container before getting the output by the index; instead, we can just scan all the items in one traversal and get the minimum or maximum with a time complexity of O(n).All the tests passed after the modification. Besides, in the test
testPercentileWithStringsAndFunction
, since the function isString::length
and each string in the stream is of length 1, the sorting result should be the same as the original order of the input elements.I think the orginal test is not enough, so I add a new test for the function
percentileBy
.Edit: add a second test.