题目描述 There are N squares aligned in a row. The i-th square from the left contains an integer ai. Initially, all the squares are white. Snuke will perform the following operation some number of times: Select K consecutive squares. Then, paint all of t…

AtCoder Grand Contest 008 A - Simple Calculator 翻译 有一个计算器,上面有一个显示按钮和两个其他的按钮.初始时,计算器上显示的数字是\(x\),现在想把这个数字给变成\(y\).两个按钮的作用分别是让这个数加一和把这个数取反.问最少的按按钮的次数. 题解 神仙特判题,想清楚再写. #include<iostream> using namespace std; int x,y,ans=2147483647; int main() { cin>…

A@[G!C]%008 A Simple Calculator 细节题. B Contiguous Repainting 最后只要有连续\(K\)个鸽子同色就可以构造方案,枚举+前缀和 C Tetromino Tiling 分析一波发现T,Z,S不可能出现,O可以直接加到最后面,剩下的拼法可以简化成JJ,II,LL,JIL,分类讨论一下. D K-th K 直接贪心加 E Next or Nextnext 毒瘤神仙题 排列\(p\)会连成一些环,\(a\)是一个鸡环内向森林,考虑一个环怎么变化…

AGC008 A - Simple Calculator 如果符号相同,那么如果y比x大直接走,否则需要两次反号 如果符号不同,需要绝对值的差加一次反号 如果有一个是0,且y比x要小,那只需要一次反号 #include <bits/stdc++.h> #define fi first #define se second #define pii pair<int,int> #define mp make_pair #define pb push_back #define space…

17.8 You are given an array of integers (both positive and negative). Find the contiguous sequence with the largest sum. Return the sum. LeetCode上的原题,请参见我之前的博客Maximum Subarray. 解法一: int get_max_sum(vector<int> nums) { int res = INT_MIN, sum = INT_MI…

DECOLOR: Moving Object Detection by Detecting Contiguous Outliers in the Low-Rank Representation Xiaowei Zhou et al. Abstract—Object detection is a fundamental step for automated video analysis in many vision applications. Object detection in a video…

It's still an Amazon interview question. Given an array containing only stars '*' and hashes '#' . Find longest contiguous sub array that will contain equal no. of stars '*' and hashes '#'.Output the index range if the longest contiguous sub array do…

Given a binary array, find the maximum length of a contiguous subarray with equal number of 0 and 1. Example 1: Input: [0,1] Output: 2 Explanation: [0, 1] is the longest contiguous subarray with equal number of 0 and 1. Example 2: Input: [0,1,0] Outp…

Given a binary array, find the maximum length of a contiguous subarray with equal number of 0 and 1. Example 1: Input: [0,1] Output: 2 Explanation: [0, 1] is the longest contiguous subarray with equal number of 0 and 1.  Example 2: Input: [0,1,0] Out…

描述 Given a binary array, find the maximum length of a contiguous subarray with equal number of 0 and 1. 示例 Example 1: Input: [0,1] Output: 2 Explanation: [0, 1] is the longest contiguous subarray with equal number of 0 and 1. Example 2: Input: [0,1,0…

在使用DPDK或者SPDK的时候,需要在进程刚启动的时候使用rte_eal_init初始化Environment Abstract Layer,应用进程会通过这个函数告诉EAL为它映射多大的hugepages,这通常通过ealargs的-m参数来指定,就像下面这样: char *ealargs[] = { argv[0], // name NULL, // core_mask(to be decided) "-n 4", // number of memory channels per…

2018-07-08 13:24:31 问题描述: 问题求解: 问题规模已经给出是50000量级,显然只能是O(n),至多O(nlogn)的复杂度.本题使用DP和滑动数组都比较棘手,这里给出的方案是preSum + HashMap的策略来进行解决,可以说方法是比较巧妙的. public int findMaxLength(int[] nums) { int res = 0; HashMap<Integer, Integer> map = new HashMap<>(); for (…

permute(dims),常用的维度转换方法 将tensor的维度换位      参数:dim(int)---换位顺序 >>>x = torch.randn(,,) >>>x.size() torch.size([,,]) >>>x.permute(,,).size() torch.size([,,]) contiguous() contiguous:view只能用在contiguous的variable上.如果在view之前用了transpose,…

525. Contiguous Array Add to List Description Submission Solutions Total Accepted: 2476 Total Submissions: 8220 Difficulty: Medium Contributors: bishwa Given a binary array, find the maximum length of a contiguous subarray with equal number of 0 and…

［抄题］: Given a binary array, find the maximum length of a contiguous subarray with equal number of 0 and 1. Example 1: Input: [0,1] Output: 2 Explanation: [0, 1] is the longest contiguous subarray with equal number of 0 and 1. Example 2: Input: [0,1,0…

A system and method for accessing memory are provided. The system comprises a lookup buffer for storing one or more page table entries, wherein each of the one or more page table entries comprises at least a virtual page number and a physical page nu…

contiguous一般与transpose,permute,view搭配使用 即使用transpose或permute进行维度变换后,调用contiguous,然后方可使用view对维度进行变形. 具体原因我还没搞清,看到网上有两种说法,一种是维度变换后tensor在内存中不再是连续存储的,而view操作要求连续存储,所以需要contiguous,另一种是说维度变换后的变量是之前变量的浅复制,指向同一区域,即view操作会连带原来的变量一同变形,这是不合法的,所以也会报错,先甭管是哪个原因吧,…

Naive solution for this problem would be caluclate all the possible combinations: const numbers = [1, -3, 2 - 5, 7, 6, -1, -4, 11, -23]; // O(n^3) const findMaxSubAry = numbers => { let answer = Number.MIN_VALUE; /** * Calculate all the possible valu…

torch.contiguous 作用 连续存储,因为view的操作要求的是连续的内容. 详细 考虑下面的操作,transpose操作只是改变了stride,而实际数组存储的内容并没有得到任何改变,即t是连续存储的 0 1 2 3 4 5 6 7 8 9 10 11 ,t2的实际内容也是一致的,但是其索引的stride改变了,按照该索引去找地址则内存是不连续的.由于pytorch的底层实现是C,也就是行优先存储.由最后输出的faltten后的结果可以看出存储的内容确实改变了,由此完全弄懂了为什么…

Given a binary array, find the maximum length of a contiguous subarray with equal number of 0 and 1. Example 1: Input: [0,1] Output: 2 Explanation: [0, 1] is the longest contiguous subarray with equal number of 0 and 1. Example 2: Input: [0,1,0] Outp…

Given a binary array, find the maximum length of a contiguous subarray with equal number of 0 and 1. Example 1: Input: [0,1] Output: 2 Explanation: [0, 1] is the longest contiguous subarray with equal number of 0 and 1. Example 2: Input: [0,1,0] Outp…

[转载]PyTorch上的contiguous 来源:https://zhuanlan.zhihu.com/p/64551412 这篇文章写的非常好,我这里就不复制粘贴了,有兴趣的同学可以去看原文,我这里只摘录一些结论过来以便查询: PyTorch 提供了is_contiguous.contiguous(形容词动用)两个方法 ,分别用于判定Tensor是否是 contiguous 的,以及保证Tensor是contiguous的. is_contiguous直观的解释是Tensor底层一维数组元…

目录 gather squeeze expand sum contiguous softmax max argmax gather torch.gather(input,dim,index,out=None).对指定维进行索引.比如4*3的张量,对dim=1进行索引,那么index的取值范围就是0~2. input是一个张量,index是索引张量.input和index的size要么全部维度都相同,要么指定的dim那一维度值不同.输出为和index大小相同的张量. import torcha=t…

连续张量理解和contiguous()方法使用,view和reshape的区别 待办 内存共享: 下边的x内存布局是从0开始的,y内存布局,不是从0开始的张量 For example: when you call transpose(), PyTorch doesn't generate new tensor with new layout, it just modifies meta information in Tensor object so offset and stride are f…

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 累积和 日期 题目地址:https://leetcode.com/problems/contiguous-array/description/ 题目描述 Given a binary array, find the maximum length of a contiguous subarray with equal number of 0 and 1…

When I finished reading this problem,I thought I could solve it by scanning every single subarray in the array,and the time complexity is cubic.Every subarray could be the eventual one whose sum is the largest,so I did make a conclusion that the best…

寻找最大连续子序列 给定一个实数序列X1,X2,...Xn(不需要是正数),寻找一个(连续的)子序列Xi,Xi+1,...Xj,使得其数值之和在所有的连续子序列数值之和中为最大. 一般称这个子序列为最大子序列,例如,在序列(2,-3,1.5,-1,3,-2,-3,3)中,最大的子序列是(1.5,-1,3)它的和是3.5,在一个给定的序列中可能有几个最大子序列. 如果所有的数值为负数,则最大子序列为空(由定义,空的子序列之和为0).我们希望有一个解决该问题的算法,并且仅对此序列扫描一次. 扩展问题…

题目:找出数组的一个子数组,要求这个子数组中0和1的数量相等,找出最大长度的这样的数组! 思路:也是受网上算法的启发吧,用一个 语言:如何初始化一个unordered_map<int,int> hmap,让默认的<key,value>中的value是-1,而不是0,因为很多时候,我们要存的value是数组的下标,那么通过这个值就判断不出来到底是真正的下标还是啥呀!…

给定一个二进制数组, 找到含有相同数量的 0 和 1 的最长连续子数组.示例 1:输入: [0,1]输出: 2说明: [0, 1] 是具有相同数量0和1的最长连续子数组. 示例 2:输入: [0,1,0]输出: 2说明: [0, 1] (或 [1, 0]) 是具有相同数量0和1的最长连续子数组.注意: 给定的二进制数组的长度不会超过50000.详见:https://leetcode.com/problems/contiguous-array/description/ Java实现: class…

Problem statement We have an H×W grid whose squares are painted black or white. The square at the i-th row from the top and the j-th column from the left is denoted as (i,j). Snuke would like to play the following game on this grid. At the beginning…