You are given an array of positive and negative integers. If a number n at an index is positive, then move forward n steps. Conversely, if it's negative (-n), move backward n steps. Assume the first element of the array is forward next to the last el…

You are given a circular array nums of positive and negative integers. If a number k at an index is positive, then move forward k steps. Conversely, if it's negative (-k), move backward k steps. Since the array is circular, you may assume that the la…

原题链接在这里:https://leetcode.com/problems/circular-array-loop/ 题目: You are given a circular array nums of positive and negative integers. If a number k at an index is positive, then move forward k steps. Conversely, if it's negative (-k), move backward k…

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 解题思路 快慢指针 代码 日期 题目地址:https://leetcode.com/problems/circular-array-loop/ 题目描述 You are given a circular array nums of positive and negative integers. If a number k at an index is posi…

You are given an array of positive and negative integers. If a number n at an index is positive, then move forward n steps. Conversely, if it's negative (-n), move backward n steps. Assume the first element of the array is forward next to the last el…

You are given an array of positive and negative integers. If a number n at an index is positive, then move forward n steps. Conversely, if it's negative (-n), move backward n steps. Assume the first element of the array is forward next to the last el…

https://leetcode.com/problems/circular-array-loop/ 题目蛮难的,有一些坑. 前后两个指针追赶找环的方法,基本可以归结为一种定式.可以多总结. package com.company; class Solution { // 参考了这里的解法 // https://discuss.leetcode.com/topic/66894/java-slow-fast-pointer-solution public boolean circularArray…

[转载请注明]https://www.cnblogs.com/igoslly/p/9339478.html class Solution { public: bool circularArrayLoop(vector<int>& nums) { ,size = nums.size(),step=; // 处理index while(step<size){ ){ index = (index+nums[index])%size; }){ index = (index-nums[in…

https://leetcode.com/problems/132-pattern/ 下面是我的做法.后来又看了一个提示: https://discuss.leetcode.com/topic/67881/single-pass-c-o-n-space-and-time-solution-8-lines-with-detailed-explanation 里面的解法非常好.先从后向前找到中间那个数.利用了栈的特性,非常好. package com.company; import java.uti…

Given a circular array C of integers represented by A, find the maximum possible sum of a non-empty subarray of C. Here, a circular array means the end of the array connects to the beginning of the array.  (Formally, C[i] = A[i] when 0 <= i < A.leng…

请点击页面左上角 -> Fork me on Github 或直接访问本项目Github地址:LeetCode Solution by Swift    说明:题目中含有$符号则为付费题目. 如:[Swift]LeetCode156.二叉树的上下颠倒 $ Binary Tree Upside Down 请下拉滚动条查看最新 Weekly Contest!!! Swift LeetCode 目录 | Catalog 序        号 题名Title 难度     Difficulty  两数之…

双指针基础 双指针(Two Pointers)是面对数组.链表结构的一种处理技巧.这里“指针”是泛指,不但包括通常意义上的指针,还包括索引.迭代器等可用于遍历的游标. 同方向指针 设定两个指针.从头往尾(或从尾到头)遍历,我称之为同方向指针,第一个指针用于遍历,第二个指针满足一定条件下移动.例如 LeetCode题目 283. Move Zeroes: // 283. Move Zeroes void moveZeroes(vector<int>& nums) { ; ;j<nu…

All LeetCode Questions List(Part of Answers, still updating) 题目汇总及部分答案(持续更新中) Leetcode problems classified by company 题目按公司分类(Last updated: October 2, 2017) .   Top Interview Questions # Title Difficulty Acceptance 1 Two Sum Medium 17.70% 2 Add Two N…

终于将LeetCode的免费题刷完了,真是漫长的第一遍啊,估计很多题都忘的差不多了,这次开个题目汇总贴,并附上每道题目的解题连接,方便之后查阅吧~ 如果各位看官们,大神们发现了任何错误,或是代码无法通过OJ,或是有更好的解法,或是有任何疑问,意见和建议的话,请一定要在对应的帖子下面评论区留言告知博主啊(如果不方便注册博客园的话,可以下载下文提到的APP,在Feedback中给博主发邮件交流哈),同时也请大家踊跃地,大量地,盲目地提供各个题目的follow up一起讨论哈,多谢多谢,祝大家刷得愉快…

[3]Longest Substring Without Repeating Characters [11]Container With Most Water [15]3Sum (2019年2月26日) 给了一个乱序的数组,返回一个结果数组,数组里面每个元素是一个三元组, 三元组的和加起来为0. 题解:先固定第一个数,然后后面两个数的控制用夹逼定理,2 pointers 来解. class Solution { public: vector<vector<int>> threeSu…

Description You are given circular array a0, a1, ..., an - 1. There are two types of operations with it: inc(lf, rg, v) - this operation increases each element on the segment [lf, rg] (inclusively) by v; rmq(lf, rg) - this operation returns minimal v…

转载请注明出处:http://blog.csdn.net/u012860063 题目链接:http://codeforces.com/problemset/problem/52/C You are given circular array a0, a1, ..., an - 1. There are two types of operations with it: inc(lf, rg, v) - this operation increases each element on the segm…

Given a circular array C of integers represented by A, find the maximum possible sum of a non-empty subarray of C. Here, a circular array means the end of the array connects to the beginning of the array.  (Formally, C[i] = A[i]when 0 <= i < A.lengt…

Given a circular array C of integers represented by A, find the maximum possible sum of a non-empty subarray of C. Here, a circular array means the end of the array connects to the beginning of the array.  (Formally, C[i] = A[i] when 0 <= i < A.leng…

Given a circular array C of integers represented by A, find the maximum possible sum of a non-empty subarray of C. Here, a circular array means the end of the array connects to the beginning of the array.  (Formally, C[i] = A[i] when 0 <= i < A.leng…

更好的阅读体验 Portal Portal1: Codeforces Portal2: Luogu Description You are given circular array \(a_0, a_1, \cdots, a_{n - 1}\). There are two types of operations with it: \(\textrm{inc}(lf, rg, v)\) - this operation increases each element on the segment…

Given a circular array C of integers represented by A, find the maximum possible sum of a non-empty subarray of C. Here, a circular array means the end of the array connects to the beginning of the array.  (Formally, C[i] = A[i] when 0 <= i < A.leng…

Question Given a circular array C of integers represented by A, find the maximum possible sum of a non-empty subarray of C. Here, a circular array means the end of the array connects to the beginning of the array.  (Formally, C[i] = A[i] when 0 <= i…

文章索引 Lock-Free 编程是什么? Lock-Free 编程技术 读改写原子操作(Atomic Read-Modify-Write Operations) Compare-And-Swap 循环(CAS Loops) ABA 问题(ABA Problem) 内存模型(Memory Model)对细粒度锁的影响 代码实践 实现普通的栈 SimpleStack 类 实现普通的加锁的栈 SimpleLockedStack 类 实现 Lock-Free 的栈 LockFreeStack 类 实现…

源代码地址:https://github.com/hopebo/hopelee 语言:C++ 301. Remove Invalid Parentheses Remove the minimum number of invalid parentheses in order to make the input string valid. Return all possible results. Note: The input string may contain letters other tha…

463. Island Perimeterhttps://leetcode.com/problems/island-perimeter/就是逐一遍历所有的cell,用分离的cell总的的边数减去重叠的边的数目即可.在查找重叠的边的数目的时候有一点小技巧,就是沿着其中两个方向就好,这种题目都有类似的规律,就是可以沿着上三角或者下三角形的方向来做.一刷一次ac,但是还没开始注意codestyle的问题,需要再刷一遍. class Solution { public: int islandPerime…

java 里面的field ,property, attribute,variable的区别 field: 就是定义的用于保存数据的字段 property: property是用于描述类中的特征,所以property比field的含义要广,因为特征包含的方面更加广,一个数据可以代表某方面的特征,但是并不是所有的特征都是你要的数据,它可能是类本身的某个特性的描述. variable:变量,就是我们平时看到的变量. 综上:如果你要想通过反射来获取某个数据模型里面的字段的话跟Field相关,跟其它的没…

首先本文是对参考中三个连接的博客进行的整理,非常感谢三位博主的努力,每次都感叹网友的力量实在太强大了…… 第一章 快速上手 1.  在C语言中用/*和*/来注释掉这段代码,这个实际上并不是十分的安全,要从逻辑上删除一段C代码,最好的办法是使用#if指令:     #if 0         Statement     #endif 2.  其他语言中,无返回值的函数称为过程(procedure). 3.  数组做参数的时候是以引用(reference)的方式传递的,即地址传递.而标量和常量都是传…

转载:http://dsqiu.iteye.com/blog/1687944 首先本文是对参考中三个连接的博客进行的整理,非常感谢三位博主的努力,每次都感叹网友的力量实在太强大了…… 第一章 快速上手 1.  在C语言中用/*和*/来注释掉这段代码,这个实际上并不是十分的安全,要从逻辑上删除一段C代码,最好的办法是使用#if指令:     #if 0         Statement     #endif 2.  其他语言中,无返回值的函数称为过程(procedure). 3.  数组做参数的…

SparkMLlib分类算法之支持向量机 (一),概念 支持向量机(support vector machine)是一种分类算法,通过寻求结构化风险最小来提高学习机泛化能力,实现经验风险和置信范围的最小化,从而达到在统计样本量较少的情况下,亦能获得良好统计规律的目的.通俗来讲,它是一种二类分类模型,其基本模型定义为特征空间上的间隔最大的线性分类器,即支持向量机的学习策略便是间隔最大化,最终可转化为一个凸二次规划问题的求解.参考网址:http://www.cnblogs.com/end/p/384…