【Lintcode】046.Majority Number

题目：

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 question in a real interview?

Yes

Example

Given [1, 1, 1, 1, 2, 2, 2], return 1

题解：

　　摩尔投票法

Solution 1 ()

class Solution {
public:int majorityNumber(vector<int> nums) {int cnt = 0;int res = nums[0];for(auto n : nums) {if (n == res) {cnt++;continue;} else {if(--cnt <= 0) {cnt = 1;res = n;}}}return res;}
};

转载于:https://www.cnblogs.com/Atanisi/p/6910262.html

【Lintcode】046.Majority Number相关推荐

【转】oracle数据库NUMBER数据类型
原文:http://www.jb51.net/article/37633.htm NUMBER ( precision, scale)a) precision表示数字中的有效位;如果没有指定prec ...
mysql的number类型对应的db2_【转】oracle数据库NUMBER数据类型
NUMBER ( precision, scale)a) precision表示数字中的有效位;如果没有指定precision的话,Oracle将使用38作为精度. b) 如果scale大于零,表 ...
【LintCode】算法题 1443. 最长AB子串
描述给你一个只由字母'A'和'B'组成的字符串s,找一个最长的子串,要求这个子串里面'A'和'B'的数目相等,输出该子串的长度. 这个子串可以为空. s的长度n满足 2<=n<=1000 ...
【lintcode】树形数据结构之Maxtree, Tree iterator, remove bst node, 优先队列之动态中位数Median, 矩阵dfs之word search II，最大连
解析 max ksubarray sum: 最大和 of 连续子序列 => 最大和 of k份连续子序列属于dp,30行代码搞定,注意一些边界. substr diff: 无queu ...
【Lintcode】1645. Least Subsequences
题目地址: https://www.lintcode.com/problem/1645/ 给定一个长nnn的数组AAA,问AAA最少能分解为多少个严格递减的子序列之并. 在AAA上定义偏序关系< ...
【Lintcode】1375. Substring With At Least K Distinct Characters
题目地址: https://www.lintcode.com/problem/substring-with-at-least-k-distinct-characters/description 给定一 ...
【Lintcode】1647. Path Search
题目地址: https://www.lintcode.com/problem/path-search/description 给定一个无向图,再给定两个点SSS和TTT,求所有SSS到TTT的简单路径 ...
【Lintcode】1723. Shortest Path in a Grid with Obstacles Elimination
题目地址: https://www.lintcode.com/problem/shortest-path-in-a-grid-with-obstacles-elimination/descriptio ...
【LeetCode】169. Majority Element
原题链接:https://leetcode.com/problems/majority-element/description/ 要求: Given an array of size n, find ...

【Lintcode】046.Majority Number

Notice

【Lintcode】046.Majority Number相关推荐

最新文章

热门文章