[2,3,4], the median is3 [2,3], the median is(2 + 3) / 2 = 2.5 Design a data structure that supports the following two operations: void addNum(int num) - Add a integer number from the data stream to the data structure. double findMedian() - Return the median of all elements...
题目来源: https://leetcode.com/problems/find-median-from-data-stream/ 题目描述:实现一个能插入数据和查询当前中位数的数据结构。 输入输出:输入输出格式请查看题目链接。 解题思路: 1,首先,一个很简单粗暴的想法是直接用vector储存数据并在每次查询时调用algorithm库中的sort函数进行排序,然后输出可直接输出中间...
[2,3], the median is (2 + 3) / 2 = 2.5 Design a data structure that supports the following two operations: void addNum(int num) - Add a integer number from the data stream to the data structure. double findMedian() - Return the median of all elements so far. For example: addN...
Design a data structure that supports the following two operations: void addNum(int num) - Add a integer number from the data stream to the data structure. double findMedian() - Return the median of all elements so far. For example: add(1)add(2)findMedian()->1.5add(3)findMedian()->...
LeetCode 295. Find Median from Data Stream(multiset,heap),"题目"题意:有n个操作,存入数字,和输出中位数题解:要确保输入数字的操作和输出中位数的操作,都是低于等于Log(n)的效率。那么怎么做呢?我们维护两个multiset,内部是一棵红黑树。一个树A维护的是较大值
[2,3], the median is (2 + 3) / 2 = 2.5 Design a data structure that supports the following two operations: void addNum(int num) - Add a integer number from the data stream to the data structure. double findMedian() - Return the median of all elements so far. ...
void addNum(int num) - Add a integer number from the data stream to the data structure. double findMedian() - Return the median of all elements so far. 答案 classMedianFinder{/** initialize your data structure here. */PriorityQueue<Integer>maxpq;PriorityQueue<Integer>minpq;publicMedianFinder...
void addNum(int num) - Add a integer number from the data stream to the data structure. double findMedian() - Return the median of all elements so far.Example:addNum(1) addNum(2)findMedian() -> 1.5 addNum(3) findMedian() -> 2...
MedianFinder():来初始化MedianFinder这个对象; void addNum(int num):来从数据流中加入一个整数到我们的数据结构中; double findMedian():返回我们迄今为止加入的所有数的中位数; 这道题目有许多思路: 通过简单排序,利用数学公式解 通过插入排序,利用数学公式解 ...
LeetCode 295. Find Median from Data Stream(multiset,heap) size效率 题解:要确保输入数字的操作和输出中位数的操作,都是低于等于Log(n)的效率。 那么怎么做呢?我们维护两个multiset ,内部是一棵红黑树。一个树A 维护的是较大值,树B维护的是较小值。A,B平分秋色。 中位数显然就是A里的最小值和B里的...