其实我们也不必非要用中序遍历不可,用先序遍历同样可以利用到BST的性质,我们带两个变量low和high来分别表示上下界,初始化为int的极值,然后我们在递归函数中,分别用上下界和当前节点值的绝对差来更新结果res,参见代码如下: 解法二: classSolution {public:intgetMinimumDifference(TreeNode*root) {intres =INT_MAX;...
非BST的解法 代码源自LeetCode讨论区。利用了java的排序树。 publicclassSolution{ TreeSet<Integer> set =newTreeSet<>();intmin=Integer.MAX_VALUE;publicintgetMinimumDifference(TreeNode root){if(root ==null)returnmin;if(!set.isEmpty()) {if(set.floor(root.val) !=null) { min = Math.min(min,...
Loading...leetcode.com/problems/minimum-absolute-difference-in-bst/ 1、读题,Given a binary search tree with non-negative values, find the minimumabsolute differencebetween values of any two nodes. 节点的值都是non-negative , 求任意two nodes, 之间最小绝对值。 2、由于bst 特性,左子树的值小...
[leetcode] 530. Minimum Absolute Difference in BST Description Given a binary search tree with non-negative values, find the minimum absolute difference between values of any two nodes. Example: Input: 1 \ 3 / 2 Output: 1 Explanation: The minimum absolute difference is 1, which is the diff...
https://leetcode.com/problems/minimum-absolute-difference/ 题目描述 Given an array of distinct integers arr, find all pairs of elements with the minimum absolute difference of any two elements. Return a list of pairs in ascending order(with respect to pairs), each...
Thanks in Advance. One of Discussions:https://leetcode.com/problems/minimum-distance-between-bst-nodes/discuss/856052/My-Java-SOlution-DFS/705372Problem Link:https://leetcode.com/problems/minimum-distance-between-bst-nodes/ #dfs,bst,difference...
Minimum Distance Between BST Nodes Problem: Given a Binary Search Tree (BST) with the root node root, return the minimum difference between the values of any two different nodes in the tree. Example: Input: root = [4,2,6,1,3,null,null] Output: 1 Explanation: Note that root is a ...
今天介绍的是LeetCode算法题中Easy级别的第268题(顺位题号是1200)。给定一个由不同的整数组成的数组arr,找到所有对元素,其中任意两个元素的绝对差值都最小。 以升序返回关于配对的列表(相对于配对),每对[a,b]紧随其后: a,b来自arr a < b b-a等于arr中任何两个元素的最小绝对差 ...
BST的中序遍历是一个有序数组!!! /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */classSolution{public:intgetMinimumDifference(TreeNode*root){vector...
class Solution { int mod = (int)1e9+7; public int minAbsoluteSumDiff(int[] nums1, int[] nums2) { int n = nums1.length; int[] sorted = nums1.clone(); Arrays.sort(sorted); long sum = 0, max = 0; for (int i = 0; i < n; i++) { int a = nums1[i], b = nums2...