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 order, not the kth distinct element. Example: image.png k = 8, return 13. Note: You may assu...
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. Note: You...
{public:intkthSmallest(vector<vector<int> >& matrix,intk) {intlen=matrix.size();boolinheap[1000][1000]; memset(inheap,0,sizeof(inheap)); priority_queue<Node>heap; heap.push(Node(0,0,matrix[0][0]));for(inti=0; i<k-1; i++) { Node now=heap.top();if(now.x<len-1&&inhea...
classSolution {public:intkthSmallest(vector<vector<int>>& matrix,intk) {intleft = matrix[0][0], right =matrix.back().back();while(left <right) {intmid = left + (right - left) /2, cnt =0;for(inti =0; i < matrix.size(); ++i) { cnt+= upper_bound(matrix[i].begin(), ma...
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
链接:https://leetcode-cn.com/problems/kth-smallest-element-in-a-sorted-matrix 著作权归领扣网络所有。商业转载请联系官方授权,非商业转载请注明出处。 思路 思路一 使用堆,维护一个最大堆,限定堆中的元素个数为 k ,将所有的元素依次压入堆中,当堆中元素大于 k 时,pop 出最大的元素。堆中最后一个元素...
Given a n x n matrix where each of the rows and columns are sorted inascending order, find the kth smallest element in the matrix. Note that it is ...
Explanation: The elements in the matrix are [1,5,9,10,11,12,13,13,15], and the 8th smallest number is 13 Example 2: Input: matrix = [[-5]], k = 1 Output: -5 Constraints: n == matrix.length == matrix[i].length 1 <= n <= 300 ...
378. Kth Smallest Element in a Sorted Matrix** https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix/ 题目描述 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 ...
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