1classSolution {2public:3doublefindkth(vector<int>& nums1,vector<int>& nums2,intk)4{5intm = nums1.size(),n =nums2.size();6if(m >n)7returnfindkth(nums2,nums1,k);//error 1. forget the "return";8if(m ==0)9returndouble(nums2[k -1]);//error 2. write as nums2[n - ...
原文地址 https://articles.leetcode.com/find-k-th-smallest-element-in-union-of/ 1importjava.util.Arrays;23publicclassFindKthElement {4publicintfindKthElement(int[] arr1,int[] arr2,intk) {5//k>0, assert arr1 != null, arr2 != null, k <= arr1.length + arr2.lengt6returnfindKth(...
The trivial way, O(m + n): Merge both arrays and the k-th smallest element could be accessed directly. Merging would require extra space of O(m+n). The linear run time is pretty good, but could we improve it even further? A better way, O(k): There is an improvement from the ...
原题链接在这里:http://www.lintcode.com/en/problem/kth-largest-element/# 在LeetCode上也有一道,采用了标准的quickSelect 方法,另外写了一篇帖子,代码更加模块化。 采用的quickSelect方法,取出pivot, 比pivot 小的都放在左边,比pivot大的都放在右边,若是pivot左边包括pivot的个数恰巧等于k, 就返回pivot. 若是...
Given anxnmatrix where each of the rows and columns are sorted in ascending order, find the kth smallest element in the matrix. Note that it is the kth smallest element in the sorted order, not the kth distinct element. Example: matrix = [ ...
Quick sort does not completely sorts two sub arrays when it gives us the correct position of pivot.By property of quick sort we know that all elements which are on left side of pivot are less than pivot. Let's say we have pivot swapped with jth element of the input set, so there are...