publicintfindRadius(int[] houses,int[] heaters) { Arrays.sort(heaters);intresult =Integer.MIN_VALUE;for(inthouse : houses) {intindex =Arrays.binarySearch(heaters, house);if(index < 0) index = -(index + 1);intdist1 = index - 1 >= 0 ? house - heaters[index - 1] : Integer.MAX_...
leetcode分类刷题:二分查找(Binary Search)(四、基于值域的数组/矩阵类型) 22世纪冲刺 西安电子科技大学 信息与通信工程博士 来自专栏 · leetcode分类刷题 基于值域的二分法与基于定义域的题型不同,它的目标是从一“特殊排序序列”中确定“第k个元素值”,而不像基于定义域的题型是从排序序列中找小于等于...
1) 第一种思路为 因为每行是sorted, 并且后面的row要比前面的要大, 所以我们可以将它看做是一维的sorted array 去处理, 然后去Binary Search, 只是需要注意的是num = matrix[mid//lrc[1]:列数][mid%lrc[0]:行数]. 2) 第二种思路为, 找到可能在某一行(last index <= target),然后在该行中做常规的...
search(nums, target)) except EOFError: break leetcode 35. 搜索插入位置 from typing import List ''' 35. 搜索插入位置 题目描述:给定一个排序数组和一个目标值,在数组中找到目标值,并返回其索引。如果目标值不存在于数组中,返回它将会被按顺序插入的位置。 请必须使用时间复杂度为O(log n) 的算法。
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LeetCode之“树”:Validate Binary Search Tree 题目链接 题目要求: Given a binary tree, determine if it is a valid binary search tree (BST). Assume a BST is defined as follows: The left subtree of a node contains only nodes with keys less than the node's key....
leetcode 669. Trim a Binary Search Tree 修建二叉搜索树BST + 深度优先遍历DFS,Givenabinarysearchtreeandthelowestandhighestboundariesas
跟昨天做的leetcode81一样,我们可以用binary search。不同的是81是要求和target比较。而这里是要找出最小值。 先上我的solution: leetcode 153: class Solution { public int findMin(int[] nums) { int left = 0, right = nums.length - 1;
http://www.programcreek.com/2014/04/leetcode-binary-search-tree-iterator-java/ Anyway, Good luck, Richardo! My code: /** * Definition for binary tree * public class TreeNode { * int val; * TreeNode left; * TreeNode right; * TreeNode(int x) { val = x; } ...
98. Validate Binary Search Tree #38 Open hayashi-ay wants to merge 4 commits into main from hayashi-ay-patch-27 +200 −0 Conversation 1 Commits 4 Checks 0 Files changed 1 ConversationOwner hayashi-ay commented Feb 29, 2024 https://leetcode.com/problems/validate-binary-search-tree/...