1. Two Sum Given an array of integers, return indices of the two numbers such that they add up to a specific target.You may assume that each input wou ...
Given a Binary Search Tree (BST) with the root noderoot, returnthe minimum difference between the values of any two different nodes in the tree.Example :Input: root = [4,2,6,1,3,null,null]Output: 1Explanation:Note that root is a TreeNode object, ..
Given a string, find the length of the longest substring without repeating characters. Examples: Given "abcabcbb", the answer is "abc", which the leng ...
Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input would have ex ...
1. 两数之和 Two Sum 题目描述 Given an array of integers, return indices of the two numbers such that they add up to a specific target. 给定一个整数数组 nums 和一个目标值 ta ...