Given a stream of integers and a window size, calculate the moving average of all integers in the sliding window. For example, MovingAverage m = new MovingAverage(3); m.next(1) = 1 m.next(10) = (1 + 10) / 2 m.next(3) = (1 + 10 + 3) / 3 m.next(5) = (1…
/* * 346. Moving Average from Data Stream * 2016-7-11 by Mingyang * 这里注意的就是(double) sum / count * sum需要转换成double才能继续往下除,因为不转的话最后不能成为整数14除以3等于4 */ class MovingAverage { public Queue<Integer> queue; public int sum = 0; public int si; public int count…
[抄题]: Given a stream of integers and a window size, calculate the moving average of all integers in the sliding window. For example, MovingAverage m = new MovingAverage(3); m.next(1) = 1 m.next(10) = (1 + 10) / 2 m.next(3) = (1 + 10 + 3) / 3 m.next(5…
Given a stream of integers and a window size, calculate the moving average of all integers in the sliding window. For example, MovingAverage m = new MovingAverage(3); m.next(1) = 1 m.next(10) = (1 + 10) / 2 m.next(3) = (1 + 10 + 3) / 3 m.next(5) = (1…
作者: 负雪明烛 id: fuxuemingzhu 个人博客:http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 队列 日期 题目地址:https://leetcode-cn.com/problems/moving-average-from-data-stream/ 题目描述 Given a stream of integers and a window size, calculate the moving average of all integers in t…
Given a stream of integers and a window size, calculate the moving average of all integers in the sliding window. For example,MovingAverage m = new MovingAverage(3);m.next(1) = 1m.next(10) = (1 + 10) / 2m.next(3) = (1 + 10 + 3) / 3m.next(5) = (10 + 3…
Given a stream of integers and a window size, calculate the moving average of all integers in the sliding window. For example,MovingAverage m = new MovingAverage(3);m.next(1) = 1m.next(10) = (1 + 10) / 2m.next(3) = (1 + 10 + 3) / 3m.next(5) = (10 + 3…
原题链接在这里:https://leetcode.com/problems/moving-average-from-data-stream/ 题目: Given a stream of integers and a window size, calculate the moving average of all integers in the sliding window. For example, MovingAverage m = new MovingAverage(3); m.next(1…
Given a stream of integers and a window size, calculate the moving average of all integers in the sliding window. For example,MovingAverage m = new MovingAverage(3);m.next(1) = 1m.next(10) = (1 + 10) / 2m.next(3) = (1 + 10 + 3) / 3m.next(5) = (10 + 3…
Given a stream of integers and a window size, calculate the moving average of all integers in the sliding window. For example, MovingAverage m = new MovingAverage(3); m.next(1) = 1 m.next(10) = (1 + 10) / 2 m.next(3) = (1 + 10 + 3) / 3 m.next(5) = (1…
Given a stream of integers and a window size, calculate the moving average of all integers in the sliding window. For example, MovingAverage m = new MovingAverage(3); m.next(1) = 1 m.next(10) = (1 + 10) / 2 m.next(3) = (1 + 10 + 3) / 3 m.next(5) = (1…
Given a stream of integers and a window size, calculate the moving average of all integers in the sliding window. For example,MovingAverage m = new MovingAverage(3);m.next(1) = 1m.next(10) = (1 + 10) / 2m.next(3) = (1 + 10 + 3) / 3m.next(5) = (10 + 3…
295. Find Median from Data Stream&数据流中的中位数 295. Find Median from Data Stream https://leetcode.com/problems/find-median-from-data-stream/discuss/74062/Short-simple-JavaC%2B%2BPython-O(log-n)-%2B-O(1) 题目 Median is the middle value in an ordered integer…
注意multiset的一个bug: multiset带一个参数的erase函数原型有两种.一是传递一个元素值,如上面例子代码中,这时候删除的是集合中所有值等于输入值的元素,并且返回删除的元素个数:另外一种是传递一个指向某个元素的iterator,这时候删除的就是这个对应的元素,无返回值. https://www.cnblogs.com/lakeone/p/5600494.html 删除的时候一定不能删除指针,只能删除迭代器 leetcode那个题就是在这个地方出错的: Input: [3,2,3…
[抄题]: 给出一串整数流和窗口大小,计算滑动窗口中所有整数的平均值. MovingAverage m = new MovingAverage(3); m.next(1) = 1 // 返回 1.00000 m.next(10) = (1 + 10) / 2 // 返回 5.50000 m.next(3) = (1 + 10 + 3) / 3 // 返回 4.66667 m.next(5) = (10 + 3 + 5) / 3 // 返回 6.00000 [暴力解法]: 来一个数就存数组,for…
一.前传 Stream在很多语言都会有,当然Node.js也不例外.数据流是可读.可写.或即可读又可写的内存结构.Node.js中主要包括Readable.Writable.Duplex(双工)和Transform(变换)流.但是在学这些之前先学会util模块中的一个从其他对象继承的功能. util模块提供了util.inherits()方法来允许你创建一个继承另一个对象的prototype(原形)方法的对象.当创建一个新对象时,prototype方法自动被使用. util.inherits(c…
中位数是有序列表中间的数.如果列表长度是偶数,中位数则是中间两个数的平均值. 例如, [2,3,4] 的中位数是 3 [2,3] 的中位数是 (2 + 3) / 2 = 2.5 设计一个支持以下两种操作的数据结构: void addNum(int num) - 从数据流中添加一个整数到数据结构中. double findMedian() - 返回目前所有元素的中位数. 示例: addNum(1) addNum(2) findMedian() -> 1.5 addNum(3) findMedian…
Median is the middle value in an ordered integer list. If the size of the list is even, there is no middle value. So the median is the mean of the two middle value. Examples: [2,3,4] , the median is 3 [2,3], the median is (2 + 3) / 2 = 2.5 Design a d…
题目如下:(https://leetcode.com/problems/find-median-from-data-stream/) Median is the middle value in an ordered integer list. If the size of the list is even, there is no middle value. So the median is the mean of the two middle value. Examples: [2,3,4] …
1 使DataWindow列只能追加不能修改如何使DataWindow中的数据只能追加新记录而不能修改,利用 Column 的 Protect 属性可以很方便的做到这一点,方法如下:将每一列的 Protect 属性设置为:If( IsRowNew(), 0, 1) )在 PowerScript 中可以动态修改 Protect 属性:dw_1.Modify("column_name_here.Protect='1~tIf(IsRowNew(),0,1)'")这样,DataWindow 中…
Median is the middle value in an ordered integer list. If the size of the list is even, there is no middle value. So the median is the mean of the two middle value. Examples: [2,3,4] , the median is 3 [2,3], the median is (2 + 3) / 2 = 2.5 Design a d…
题目: Median is the middle value in an ordered integer list. If the size of the list is even, there is no middle value. So the median is the mean of the two middle value. Examples: [2,3,4] , the median is 3 [2,3], the median is (2 + 3) / 2 = 2.5 Design…
LintCode 81. Data Stream Median (Hard) 思路: 用一个大根堆保存较小的一半数, 一个小根堆保存较大的一半数. 每次根据num和两个堆顶的数据决定往哪个堆里面放. 放完后进行平衡确保两个堆的size差不超过1. 利用两个堆的size和堆顶值计算median. 大根堆可以表示为priority_queue<int, vector<int>, less<int>>, 其实priority_queue<int>默认就是大根堆.…
Question Median is the middle value in an ordered integer list. If the size of the list is even, there is no middle value. So the median is the mean of the two middle value. Examples: [2,3,4] , the median is 3 [2,3], the median is (2 + 3) / 2 = 2.5 D…
git clone时出现 error:inflate:data stream error(incorrect data check) fatal:serrious inflate inconsistency fatal:index-pack failed 经了解,此问题是遗留问题,之前是因为公司对gitlab服务器进行数据迁移而引起这种git clone失败的原因,现象非常奇怪,大部分project是可以clone的,小部分不行,有一些人clone没问题的,有些人就是不行,我被这个问题困扰了好久…
Median is the middle value in an ordered integer list. If the size of the list is even, there is no middle value. So the median is the mean of the two middle value. For example, [2,3,4], the median is 3 [2,3], the median is (2 + 3) / 2 = 2.5 Design a…
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8" %> <%@ include file="/jsp/common/commonfile.jsp" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "ht…
Median is the middle value in an ordered integer list. If the size of the list is even, there is no middle value. So the median is the mean of the two middle value. For example, [2,3,4], the median is 3 [2,3], the median is (2 + 3) / 2 = 2.5 Design a…
[理论部分] ARIMA包含两部分,自回归AR和移动平均MA: AR:Y(t)-a=b(1){Y(t-1)-a}+u(t)   其中a是y的均值, u(t)是均值为零,恒定方差的不相关随机误差项(噪声)此公式为一阶自回归AR(1)随机过程.同理可以推广出P阶自回归过程. MA:Y(t)=u+c(0)u(t)+c(1)u(t-1)    其中u是常数项 u(t)是噪声. 此公式为一阶移动平均MA(1)过程.同理可推广出q阶移动平均过程. 如果Y兼具Autoregressive 和 Moving A…
数据窗口的状态主要有以下几种: 1)New! 2)NewModified! 3)DataModified! 4)NotModified! 数据窗口可以利用这些状态标志判断数据是否被修改过. 记录和字段的状态标志如下: ×××××××××××××××××××× 状态                            使用范围 NotModified!                记录与字段 DataModified!              记录与字段 New!              …