摘要：Apache Log4j2 is an upgrade to Log4j that provides significant improvements over its predecessor, Log4j 1.x, and provides many of the improvements ava 阅读全文

摘要：题目内容 Given a Binary Search Tree and a target number, return true if there exist two elements in the BST such that their sum is equal to the given targ 阅读全文

摘要：题目内容 Given an array nums of n integers and an integer target, find three integers in nums such that the sum is closest to target. Return the sum of th 阅读全文

摘要：题目内容 Given an array nums of n integers, are there elements a, b, c in nums such that a + b + c = 0? Find all unique triplets in the array which gives 阅读全文

摘要：题目内容 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 ha 阅读全文