题目 https://www.nowcoder.com/practice/e016ad9b7f0b45048c58a9f27ba618bf?tpId=190&&tqId=35209&rp=1&ru=/activity/oj&qru=/ta/job-code-high-rd/question-ranking import java.util.*; public class Finder { public static int findKth(int[] a, int n, int K) { return quickSort(a,0,n-1,K); // w...