You are playing the following Flip Game with your friend: Given a string that contains only these two characters: + and -, you and your friend take turns to flip two consecutive "++" into "--". The game ends when a person can no longer…

［抄题］: You are playing the following Flip Game with your friend: Given a string that contains only these two characters: + and -, you and your friend take turns to flip two consecutive "++" into "--". The game ends when a person can no…

题目: You are playing the following Flip Game with your friend: Given a string that contains only these two characters: + and -, you and your friend take turns to flip twoconsecutive "++" into "--". The game ends when a person can no lon…

原题链接在这里:https://leetcode.com/problems/flip-game/description/ 题目: You are playing the following Flip Game with your friend: Given a string that contains only these two characters: + and -, you and your friend take turns to flip two consecutive "++&quo…

You are playing the following Flip Game with your friend: Given a string that contains only these two characters: + and -, you and your friend take turns to flip twoconsecutive "++" into "--". The game ends when a person can no longer…

914. Flip Game https://www.cnblogs.com/grandyang/p/5224896.html 从前到后遍历,遇到连续两个'+',就将两个加号变成'-'组成新的字符串加入到结果中. class Solution { public: vector<string> generatePossibleNextMoves(string &s) { // write your code here vector<string> result; ;i <…

Given a binary tree with N nodes, each node has a different value from {1, ..., N}. A node in this binary tree can be flipped by swapping the left child and the right child of that node. Consider the sequence of N values reported by a preorder traver…

A string of '0's and '1's is monotone increasing if it consists of some number of '0's (possibly 0), followed by some number of '1's (also possibly 0.) We are given a string S of '0's and '1's, and we may flip any '0' to a '1' or a '1' to a '0'. Retu…

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 遍历 日期 题目地址:https://leetcode-cn.com/problems/flip-game/ 题目描述 You are playing the following Flip Game with your friend: Given a string that contains only these two characters: + a…

186. Reverse Words in a String II 先反转整个字符串,再反转每个单词(调整顺序也可以) 反转单词的时候:当 j 指到最后一个字符的时候,或者 j 的下一个指向空格,则反转该单词. class Solution { public void reverseWords(char[] s) { if(s == null || s.length == 0){ return; } reverse(s, 0, s.length - 1); int i = 0, j = 0; w…

You are playing the following Flip Game with your friend: Given a string that contains only these two characters: + and -, you and your friend take turns to flip two consecutive "++" into "--". The game ends when a person can no longer…

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~ 477 Total Hamming Distance 44.10% Meidum 475 Heaters  30.20% Easy 474 Ones and Zeroes  34.90% Meidum 473 Matchsticks to Square  31.80% Medium 472 Concatenated Words 29.20% Hard…

LinkedIn(39) 1 Two Sum 23.0% Easy 21 Merge Two Sorted Lists 35.4% Easy 23 Merge k Sorted Lists 23.3% Hard 33 Search in Rotated Sorted Array 30.2% Hard 34 Search for a Range 29.1% Medium 46 Permutations 35.7% Medium 47 Permutations II 28.0% Medium 50…

Description Byteasar是一个很纠结的人.每次他经过Bytetown的时候都知道有至少2条不同的路径可以选择,这导致他必须花很长时间来决定走哪条路.Byteasar最近听说了Bytetown的修路计划,他可能是唯一一个为此感到高兴的人——他有机会消除他的烦恼. 在Byteasar一共有n个岔口,连接着m条双向道路.两条路径完全不同当且仅当他们没有公共的道路(但是允许经过相同的岔口). Byteasar想知道:对于两个岔口x y,是否存在一对完全不同的路径. Input 第一行3个…

这道题有这样一个解法: 首先把边依次加到图中,若当前这条边与图中的边形成了环,那么把这个环中最早加进来的边弹出去并将每条边把哪条边弹了出去记录下来:ntr[i] = j,特别地,要是没有弹出边,ntr[i] = 0;这个显然是可以用LCT来弄的对吧.然后对于每个询问,我们的答案就是对l~r中ntr小于l的边求和,并用n减去这个值正确性可以想一下:如果一条边的ntr >= l,那么显然他可以与从l ~ r中的边形成环,那么它对答案没有贡献反之如果一条边的ntr < l那么它与从l ~ r中的边是…

用LCT来维护生成树,动态加边(s,t,w)时,新建节点x,权值为边权w. 1.若s与t不连通,则连接s-x,x-t,答案+w 2.若s与t连通,找出s-t路径上的最大权w2,若w<w2,删除w2的连边,连接s-x,x-t,答案+w-w2 太水了是不是! #include<cstdio> #include<cctype> #include<queue> #include<cstring> #include<algorithm> #defin…

突然很想刷刷题,LeetCode是一个不错的选择,忽略了输入输出,更好的突出了算法,省去了不少时间. dalao们发现了任何错误,或是代码无法通过,或是有更好的解法,或是有任何疑问和建议的话,可以在对应的随笔下面评论区留言,我会及时处理,在此谢过了. 过程或许会很漫长,也很痛苦,慢慢来吧. 编号 题名 过题率 难度 1 Two Sum 0.376 Easy 2 Add Two Numbers 0.285 Medium 3 Longest Substring Without Repeating C…

这回总算是过了.. 4600ms+,服务器抖一抖又没了 对于极端卡时间的情况还是考虑屈服于Splay吧 #include<iostream> #include<algorithm> #include<cstdio> #include<cstring> #include<cstdlib> #include<cmath> #include<string> #include<vector> #include<s…

题意:一开始给出一个序列\(1,2...n\),然后\(m\)次操作,每次把\([l,r]\)翻转并且拼接到序列的后面,求最后形成的序列 打个pushdown标记就好 #include<iostream> #include<algorithm> #include<cstdio> #include<cstring> #include<cstdlib> #include<cmath> #include<string> #inc…

删除不常考,面试低频出现题目 删除重复代码题目(例:链表反转206题,代码在234题出现过) 删除过于简单题目(例:100题:Same Tree) 删除题意不同,代码基本相同题目(例:136 & 389,保留一个) 适用人群:有一定刷题基础,算法基础,二刷人群. 建议:400题全部刷完,再精刷这250题. ID Title 1 Two Sum 3 Longest Substring Without Repeating Characters 4 Median of Two Sorted Array…

1. Array 基础 27 Remove Element 26 Remove Duplicates from Sorted Array 80 Remove Duplicates from Sorted Array II 277 Find the Celebrity 189 Rotate Array 41 First Missing Positive 299 Bulls and Cows 134 Gas Station 118 Pascal's Triangle 很少考 119 Pascal's…

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…

All LeetCode Questions List 题目汇总 Sorted by frequency of problems that appear in real interviews. Last updated: October 2, 2017Google (214)534 Design TinyURL388 Longest Absolute File Path683 K Empty Slots340 Longest Substring with At Most K Distinct C…

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…

传送门 当年听llj讲的时候觉得这简直是个不可做的神题． 现在看来并不是很神,可能是我已经被剧透了的缘故．．． 一开始以为是函数套函数,懵蔽了好久,结果只是求和 被剧透了泰勒展开就比较水了．．只要你不像我一样蠢的最最简单的求导都求错．．． 还有不像我一样蠢展开了看到有常数项不暴力二项式定理展开转而展开f(a*x+b)发现不会求e^b．．． 那么直接泰勒展开然后二项式定理暴力展开后用lct合并即可,维护个17项就差不多了 //Achen #include<algorithm> #include&…

传送们 把一个点拆成c个即可 浪费时间的水题．．． //Achen #include<algorithm> #include<iostream> #include<cstring> #include<cstdlib> #include<vector> #include<cstdio> #include<queue> #include<cmath> #include<set> #include<…

bzoj2049: [Sdoi2008]Cave 洞穴探测 给n个点,每次连接两个点或切断一条边,保证是树结构,多次询问两个点是否联通 Lct裸题 //Achen #include<algorithm> #include<iostream> #include<cstring> #include<cstdlib> #include<cstdio> #include<vector> #include<queue> #inclu…

You are playing the following Flip Game with your friend: Given a string that contains only these two characters: + and -, you and your friend take turns to flip twoconsecutive "++" into "--". The game ends when a person can no longer…

Flip Game Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 45691   Accepted: 19590 Description Flip game is played on a rectangular 4x4 field with two-sided pieces placed on each of its 16 squares. One side of each piece is white and the…

laviewpbt  2014.8.4 编辑 Email:laviewpbt@sina.com   QQ:33184777 最近闲来蛋痛,看了一些显著性检测的文章,只是简单的看看,并没有深入的研究,以下将研究的一些收获和经验共享. 先从最简单的最容易实现的算法说起吧: 1. LC算法 参考论文:Visual Attention Detection in Video Sequences Using Spatiotemporal Cues. Yun Zhai and Mubarak Shah.  P…