Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of zero. Note: The solution set must not contain duplicate triplets. For example, given array S = [-1,
题目: Given an array of size n, find the majority element. The majority element is the element that appears more than ⌊ n/2 ⌋ times. You may assume that the array is non-empty and the majority element always exist in the array. 思路:可以利用Dictionary将数组中每个数
421. 数组中两个数的最大异或值 421. Maximum XOR of Two Numbers in an Array 题目描述 给定一个非空数组,数组中元素为 a0, a1, a2, - , an-1,其中 0 ≤ ai < 231. 找到 ai 和 aj 最大的异或 (XOR) 运算结果,其中 0 ≤ i,j < n. 你能在 O(n) 的时间解决这个问题吗? 每日一算法2019/7/13Day 71LeetCode421. Maximum XOR of Two Numbers in
Given a non-empty array of numbers, a0, a1, a2, … , an-1, where 0 ≤ ai < 231. Find the maximum result of ai XOR aj, where 0 ≤ i, j < n. Could you do this in O(n) runtime? Example: Input: [3, 10, 5, 25, 2, 8] Output: 28 Explanation: The maximum resul