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(...
Can you solve this real interview question? Kth Largest Element in an Array - Given an integer array nums and an integer k, return the kth largest element in the array. Note that it is the kth largest element in the sorted order, not the kth distinct el
Can you solve this real interview question? Find the Kth Smallest Sum of a Matrix With Sorted Rows - You are given an m x n matrix mat that has its rows sorted in non-decreasing order and an integer k. You are allowed to choose exactly one element from
https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix/ 题目: n x n Note that it is the kth smallest element in the sorted order, not the kth distinct element. Example: matrix = [ [ 1, 5, 9], [10, 11, 13], [12, 13, 15] ], k = 8, return 13. ...
根据给的matrix的性质,可以知道最小的element一定是在左上角的,接下来小的值是在这个值的右边还是在这个值的下面没有办法确定,这里维护的是一个size为k的minHeap,通过传统的BFS做法,不停地把当前值的下面的和左边的传入minHeap,因为minHeap会自动的把最小值放到最上面,所以poll k次就可以知道第k小的。这里用到...
image.png k = 8, 返回 13。 注意: 你可以假设 k 始终有效,1 ≤ k ≤ n2。 思路: 题目给出的矩阵只是每一行和每一列是升序的,但是一个元素的下一个行元素和下一个列元素之间的大小是不定的。 我们要找第 k 小的元素,那么用一个 k 遍的循环来从小开始找。
题目描述: LeetCode 378. Kth Smallest Element in a Sorted Matrix Given a n x n matrix 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 or
https://leetcode-cn.com/problems/kth-smallest-element-in-a-sorted-matrix/ 耗时 解题:~3 h 题解:16 min 题意 给定一个 n x n 矩阵,其中每行和每列元素均按升序排序,找到矩阵中第 k 小的元素。 思路 首先可以断定最左上角的元素一定是最小的,并且对于每个元素都存在:ai,j<ai+1,jai,j<ai+...
LeetCode 378. Kth S Element in a Sorted Matrix 简介:给定一个 n x n 矩阵,其中每行和每列元素均按升序排序,找到矩阵中第k小的元素。请注意,它是排序后的第k小元素,而不是第k个元素。 Description Given a n x n matrix where each of the rows and columns are sorted in ascending order, find ...