Py3排序 C++nth_element速解Leetcode 2099 Find Subsequence of Length K With t...

Py3排序 C++nth_element速解Leetcode 2099  Find Subsequence of Length K With the Largest Sum

C++的nth_element很好用，基本上是做partition，在這個問題可取代sort

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C++'s nth_element is very useful. It basically does partitioning and can replace sort in this problem.

[codes on Leetcode]https://leetcode.com/problems/find-subsequence-of-length-k-with-the-largest-sum/solutions/6893606/nth-element-counting-sort-c-100-py3-1-line/