Problem D. GukiZ and Binary Operations Solution 一位一位考虑,就是求一个二进制序列有连续的1的种类数和没有连续的1的种类数. 没有连续的1的二进制序列的数目满足f[i]=f[i-1]+f[i-2],恰好是斐波那契数列. 数据范围在10^18,用矩阵加速计算,有连续的1的数目就用2^n-f[n+1] 最后枚举k的每一位,是1乘上2^n-f[n+1],是0乘上f[n+1] 注意以上需要满足 2^l>k.并且这里l的最大值为64,需要特判. #inclu…

D. GukiZ and Binary Operations   We all know that GukiZ often plays with arrays. Now he is thinking about this problem: how many arrays a, of length n, with non-negative elements strictly less then 2l meet the following condition: ? Here operation  m…

D. GukiZ and Binary Operations time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output We all know that GukiZ often plays with arrays. Now he is thinking about this problem: how many arrays a, of l…

Binary Operations Time Limit: 2000 ms Memory Limit: 65535 kB Solved: 56 Tried: 674   Description   Bob has a sequence of N integers. They are so attractive, that Alice begs to have a continued part of it(a continued part here also means a continued s…

\(>Codeforces \space 551 D. GukiZ and Binary Operations<\) 题目大意 :给出 \(n, \ k\) 求有多少个长度为 \(n\) 的序列 \(a\) 满足 \((a_1\ and \ a_2)or(a_2\ and \ a_3)or..or(a_{n-1}\ and \ a_n) = k\) 且 \(a_i \leq k \leq 2^l\) 并输出方案数在$\mod m $ 意义下的值 \(0≤ n ≤ 10^{18},\ 0 ≤ k…

题目传送门 题意:所有连续的子序列的三种位运算计算后的值的和的期望分别是多少 分析:因为所有连续子序列的组数有n * (n + 1) / 2种,所以要将他们分类降低复杂度,以ai为结尾的分成一组,至于具体的做法,我觉得这篇题解已经写的很详细了,UESTC 1709 Binary Operations 吐槽一下,题解的代码交上去是TLE的,至今不知道为何,我写的是WA,将所有类型改成ll才AC... /************************************************…

https://www.codewars.com/kata/binary-operations-number-1/train/csharp Your work is to write a method that takes a value and an index, and returns the value with the bit at given index flipped. The bits are numbered from the least significant bit (ind…

题目地址:http://codeforces.com/contest/551/problem/D 分析下公式能够知道,相当于每一位上放0或者1使得最后成为0或者1.假设最后是0的话,那么全部相邻位一定不能全是1,由于假设有一对相邻位全为1,那么这两个的AND值为1.又由于OR值是仅仅要有1.结果就为1.所以这位结果肯定为1.所以就推出了一个dp转移方程.dp[i][j]表示第i位上的数为j时的总个数.那么有: dp[i][0]=dp[i-1][0]+dp[i-1][1]; dp[i][1]=dp…

得到k二进制后,对每一位可取得的方法进行相乘即可,k的二进制形式每一位又分为2种0,1,0时,a数组必定要为一长为n的01串,且串中不出现连续的11,1时与前述情况是相反的. 且0时其方法总数为f(n) = f(n-1) + f(n-2),其中f(2) = 3,f(1) = 3. #include <bits/stdc++.h> using namespace std; #define ll long long ll n,k; int l,m; unsigned ]; queue<int…

大意: 给定$n,k,l,m$, 求有多少个长度为$n$, 元素全部严格小于$2^l$, 且满足 的序列. 刚开始想着暴力枚举当前or和上一个数二进制中$1$的分布, 但这样状态数是$O(64^3)$在加上矩阵幂的复杂度显然不行. 看了题解发现可以按每位单独来考虑. #include <iostream> #include <sstream> #include <algorithm> #include <cstdio> #include <math.h…

论操作非文本文件时,std::ios::binary的重要性 今天在读取图片文件的时候,根据图片数据的高宽对图片数据进行读取,但是出现了图片数据读取不完整,但是文件已经到达末尾的情况,中间想过read是否有问题,后来查阅函数说明发现这个std::ios::binary属性. 最后恍然大悟,如果不以二进制方式来读取文件,一些特殊控制字符会被直接过滤掉,从而导致读取提前结束的情况. member constant stands for access in * input File open for…

描述 Most people know that the binary operations. Do you know the binary mod and divide? Now give the Binary number N and a integer number M ,Can you tell me the answer of N%(2^M) and N/(2^M)? 输入 Input contains multiple test cases. The first line of ea…

http://www.36dsj.com/archives/33650 http://flink.apache.org/news/2015/05/11/Juggling-with-Bits-and-Bytes.html http://www.bigsynapse.com/addressing-big-data-performance ,addressing-big-data-performance   第一篇描述,当前JVM存在的问题, 1. Java对象开销 Java对象的存储密度相对偏低,对…

Part 1 reference:http://jaxenter.com/lambdas-in-java-8-part-1-49700.html Get to know lambda expressions in Java 8. Few things excite a community of software developers more than a new release of their chosen programming language or platform. Java dev…

使用模板的要点:     页面主体结构固定,具体参数可变,尽可能让参数动态化,才能提高模板的复用性 =================================================================== Thymeleaf's core  is a DOM processing engine Processor: An Object which applies some logic to a DOM node Standard Dialect: a set of…

官方文档链接http://pandas.pydata.org/pandas-docs/stable/dsintro.html 数据结构介绍 我们将以一个快速的.非全面的pandas的基础数据结构概述来开始.应用在所有对象的数据类型.索引和轴标签/对齐等的基础操作.首先我们需要向你的命名空间引入numpy和pandas. In [1]: import numpy as np In [2]: import pandas as pd 有个宗旨需要牢记:数据对齐是内在的.标签和数据间的链接不会被轻易改变…

an open-source JavaScript libraryfor mobile-friendly interactive maps Overview Tutorials Docs Download Plugins Blog Leaflet Plugins While Leaflet is meant to be as lightweight as possible, and focuses on a core set of features, an easy way to extend…

小结: 1.数域.环.半环 :一般化.泛化 https://en.wikipedia.org/wiki/Matrix_multiplication In mathematics, matrix multiplication or matrix product is a binary operation that produces a matrix from two matrices with entries in a field, or, more generally, in a ring or…

本章的主要内容: 一,高级几何体-凸面体ConvexGeometry,扫描体LatheGeometry,管状几何体TubeGeometry: 二,使用拉伸几何体ExtrudeGeometry将一个二维图形生成三维图形,并基于从外部引入的SVG图片生成一个三维图形: 三,基于three.js提供的ParamtericGeometry对象的公式定制自己的图形 四,使用TextGeometry创建三维文字 五,使用二元操作从已有的几何体中创建出新的几何体: 1  ConvexGeometry--凸面体…

公共成员函数: ) ifstream(); initialization () explicit ifstream (const char* filename, ios_base::openmode mode = ios_base::in); explicit ifstream (const string& filename, ios_base::openmode mode = ios_base::in); copy () ifstream (const ifstream&) = dele…

一.源代码下载 代码最初来源于Github:https://github.com/vijayvee/Recursive-neural-networks-TensorFlow,代码介绍如下:“This repository contains the implementation of a single hidden layer Recursive Neural Network.Implemented in python using TensorFlow. Used the trained mode…

D. GukiZ and Binary Operations time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output We all know that GukiZ often plays with arrays. Now he is thinking about this problem: how many arrays a, of l…

可怜这么有用的开源竟然没有中文手册,   MITK Plugin Manuals Overview The Basic Image Processing Plugin The DataManager MITK Diffusion Imaging (MITK-DI) The Image Cropper Plugin The Image Navigator The Measurement Toolbox Plugin The Movie Maker View The Mesh Decimation…

The aim of this tutorial is to give a gentle introduction to Objective-C blocks while paying special emphasis to their syntax, as well as exploring the ideas and implementation patterns that blocks make possible. In my opinion, there are two main stu…

对原文有大量修改,如有疑惑,请移步原文. 参考链接:MXNet设计和实现简介 文章翻译于:https://mxnet.incubator.apache.org/architecture/index.html 一.MXNet System Architecture系统概览 This figure shows the major modules and components of the MXNet system and their interaction. The modules are: Run…

1.Data Model Model Is the abstraction of real world Reveal the essence of objects, help people to locate and resolve problems Data Model A data model explicitly determines the structure of data, and defines the operation that can be imposed, in order…

Page 1Published as a conference paper at ICLR 2017AS IMPLE BUT T OUGH - TO -B EAT B ASELINE FOR S EN -TENCE E MBEDDINGSSanjeev Arora, Yingyu Liang, Tengyu MaPrinceton University{arora,yingyul,tengyu}@cs.princeton.eduA BSTRACTThe success of neural net…

Identifiers 标识符 @ 全局 % 局部 后接字符串 命名量 @name %name 无符号数字 未命名量 @42 %42 类型系统 void 空类型 <type> * 指针类型 <returntype> (<parameter list>) 函数类型 < <# elements> x <elementtype> > 向量类型 [<# elements> x <elementtype>] 数组类型 {…

“矩阵代数初步”(Introduction to MATRIX ALGEBRA)课程由Prof. A.K.Kaw(University of South Florida)设计并讲授. PDF格式学习笔记下载(Academia.edu) 第3章课程讲义下载(PDF) Summary Addition of matrices Two matrices $[A]$ and $[B]$ can be added only if they are the same size. The addition i…

Binary Tree : It is a tree data structure in which each node has at most two children. As such there is no relation between a parent and its left and right descendants. Hence they are unordered. Binary Search Tree : These are ordered binary trees wit…