Majority Number II 原题链接: http://lintcode.com/en/problem/majority-number-ii/# Given an array of integers, the majority number is the number that occurs more than 1/3 of the size of the array. Find it. Note There is only one majority number in the arra…

Given an array of integers, the majority number is the number that occurs more than 1/3 of the size of the array. Find it. Note There is only one majority number in the array Example For [1, 2, 1, 2, 1, 3, 3] return 1 Challenge O(n) time and O(1) spa…

Given an array of integers, the majority number is the number that occurs more than 1/3 of the size of the array. Find it. Have you met this question in a real interview? Yes Example Given [1, 2, 1, 2, 1, 3, 3], return 1. Note There is only one major…

Given an array of integers and a number k, the majority number is the number that occurs more than 1/k of the size of the array. Find it. Have you met this question in a real interview? Yes Example Given [3,1,2,3,2,3,3,4,4,4] and k=3, return 3. Note…

题目 主元素II 给定一个整型数组,找到主元素,它在数组中的出现次数严格大于数组元素个数的三分之一. 样例 给出数组[1,2,1,2,1,3,3] 返回 1 注意 数组中只有唯一的主元素 挑战 要求时间复杂度为O(n),空间复杂度为O(1). 解题 利用HashMap,key值是元素值,value是出现次数,但是时间复杂度和空间复杂度都是O(N) public class Solution { /** * @param nums: A list of integers * @return: Th…

LeetCode169. Majority Element Given an array of size n, find the majority element. The majority element is the element that appears more than ⌊ n/2 ⌋ times. (Easy) You may assume that the array is non-empty and the majority element always exist in th…

Majority Number 原题链接:http://lintcode.com/en/problem/majority-number/# Given an array of integers, the majority number is the number that occurs more than half of the size of the array. Find it. Example For [1, 1, 1, 1, 2, 2, 2], return 1 Challenge O(…

Given an array of integers, the majority number is the number that occurs more than half of the size of the array. Find it. Notice You may assume that the array is non-empty and the majority number always exist in the array. Have you met this questio…

Given an array of integers, the majority number is the number that occurs more than half of the size of the array. Find it. Notice You may assume that the array is non-empty and the majority number always exist in the array. Have you met this questio…

一篇解析比较详细的文章:http://www.acmerblog.com/leetcode-single-number-ii-5394.html C++ 解法(1) 求出每个比特位的数目,然后%3,如果这个比特位只出现1次,那么这比特位就会余1,否则就会整除. 把每个余下的比特位求出来,就知道是哪个数只出现1次了. class Solution { public: /** * @param A : An integer array * @return : An integer */ int si…