[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...
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 此题要找出数据流的中位数,数据流由无序整数组成...
Find Median from Data Stream 常规方法 超时 两个优先队列 数组如果是 123 789 这样存储 3,2,1 和 7,8,9 Q:如果要求第n/10个数字该怎么做? A:改变两个堆的大小比例,当求n/2即中位数时,两个堆是一样大的。而n/10时,说明有n/10个数小于目标数,9n/10个数大于目标数。所以我们保证最小堆是最...
Can you solve this real interview question? Find Median from Data Stream - The median is the middle value in an ordered integer list. If the size of the list is even, there is no middle value, and the median is the mean of the two middle values. * For
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: addNum(1) addNum(2) findMedian() -> 1.5 addNum(3) findMedian() -> 2 ...
https://leetcode.com/problems/find-median-from-data-stream/description/ 很好的题 要维护小的数都在first里面,需要首先判断要插入的数跟top的对比。 ...LeetCode:295. Find Median from Data Stream LeetCode:295. Find Median from Data Stream 题目描述 Median is the middle value in an ordered intege...
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
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:
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() -> 1.5 add(3) findMedian() -> 2 ...
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. 设计一个数据结构,该数据结构维护一组数据,且支持以下操作: 1.添加元素,将整形数据添加到数据结构中 ...