Given several boxes with different colors represented by different positive numbers. You may experience several rounds to remove boxes until there is no box left. Each time you can choose some continuous boxes with the same color (composed of k boxes…

给定一些不同颜色的盒子,以不同的正整数表示.消去连续相同颜色的盒子,直到全部消除完毕为止.每一次消去可以得到k * k分(k为消去盒子的个数, k  >= 1).计算可以得到的最大得分.注意:盒子的数量n不超过100. 详见:https://leetcode.com/problems/remove-boxes/description/ C++: class Solution { public: int removeBoxes(vector<int>& boxes) { int n…

Leetcode546 给定一个整数序列,每次删除其中连续相等的子序列,得分为序列长度的平方 求最高得分. dp方程如下: memo[l][r][k] = max(memo[l][r][k], dfs(boxes,memo,l,i,k+1) + dfs(boxes,memo,i+1,r-1,0)); 意思是在序列的l-r部分后接k长度的 r值序列 所能得到的最大得分. 代码很简单 class Solution { public: int removeBoxes(vector<int>&…

题目链接: https://leetcode.com/problems/remove-boxes/description/ 问题描述 若干个有序排列的box和它们的颜色,每次可以移除若干个连续的颜色相同的box,且得分为移除个数的平方,求最大的得分. n不超过100. 输入 输入n个箱子的颜色. 输出 输出最大的得分. 样例输入 1, 3, 2, 2, 2, 3, 4, 3, 1 样例输出 23 题解 令dp[l][r][k]表示前面有k个和box[l]同颜色的要和box[l]一起消除,现在考虑…

Given several boxes with different colors represented by different positive numbers. You may experience several rounds to remove boxes until there is no box left. Each time you can choose some continuous boxes with the same color (composed of k boxes…

Given several boxes with different colors represented by different positive numbers. You may experience several rounds to remove boxes until there is no box left. Each time you can choose some continuous boxes with the same color (composed of k boxes…

很久没写博客了,越来越懒了,这次还是要分享LeetCode上一道动态规划的题目,和之前的Ballon Boom那个题(我记得是这个标题吧...)差不多,都是对一个数组的区间进行枚举的题,而且涉及到区间和子区间取值的问题,不过那个题和矩阵链乘法基本是一样的, 这个题的话相对来说更难一点,因为这个题需要对一个三维的dp数组进行维护,最后一个维度的考虑是比较难的.直接提供代码,思路以后有时间再补: class Solution { public int removeBoxes(int[] boxes)…

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…

1. 507. Perfect Number 显然小于2的都不满足(尤其是负数的情况),进一步,显然质数都不满足,所以小于4的数,直接return false. 然后依次暴力枚举判断到sqrt(n),注意n = t * t的时候,t只需要加一次.好像不写这个也不会出错,因为没有这样的数满足条件.我没验证,需要的验证一下. class Solution { public: bool checkPerfectNumber(int num) { ) ; ; int d = floor(sqrt(num…

DFS基础 深度优先搜索(Depth First Search)是一种搜索思路,相比广度优先搜索(BFS),DFS对每一个分枝路径深入到不能再深入为止,其应用于树/图的遍历.嵌套关系处理.回溯等,可以用递归.堆栈(stack)实现DFS过程. 关于广度优先搜索(BFS)详见:算法与数据结构基础 - 广度优先搜索(BFS) 关于递归(Recursion)详见:算法与数据结构基础 - 递归(Recursion) 树的遍历 DFS常用于二叉树的遍历,关于二叉树详见: 算法与数据结构基础 - 二叉查找树…

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…

源代码地址:https://github.com/hopebo/hopelee 语言:C++ 517. Super Washing Machines You have n super washing machines on a line. Initially, each washing machine has some dresses or is empty. For each move, you could choose any m (1 ≤ m ≤ n) washing machines,…

# Title Solution Acceptance Difficulty Frequency     4 Median of Two Sorted Arrays       27.2% Hard     10 Regular Expression Matching       25.6% Hard     23 Merge k Sorted Lists       35.8% Hard     25 Reverse Nodes in k-Group       37.7% Hard    …

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…

Hello everyone, I am a Chinese noob programmer. I have practiced questions on leetcode.com for 2 years. During this time, I studied a lot from many Great Gods' articles. After worship, I always wanted to write an article as they did, and now I take t…

C. GukiZ hates Boxes Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/551/problem/C Description Professor GukiZ is concerned about making his way to school, because massive piles of boxes are blocking his way. In total there…

C. Okabe and Boxes time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output Okabe and Super Hacker Daru are stacking and removing boxes. There are n boxes numbered from 1 to n. Initially there are…

--睡太晚了. ..脑子就傻了-- 这个题想的时候并没有想到该这样-- 题意大概是有n堆箱子从左往右依次排列,每堆ai个箱子,有m个人,最開始都站在第一个箱子的左边, 每个人在每一秒钟都必须做出两种选择中的一种:1若他的位置有箱子则搬走一个箱子,2往右走一步. 问把全部箱子都搞掉的最少时间-- 非常显然二分一下答案,若为x秒,则每一个人都有x秒.一个一个排出去搬.看是否可以搬完-- 我居然没想到-- #include<map> #include<string> #include&l…

题目链接:http://codeforces.com/problemset/problem/551/C time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Professor GukiZ is concerned about making his way to school, because massive piles of bo…

C. GukiZ hates Boxes time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Professor GukiZ is concerned about making his way to school, because massive piles of boxes are blocking his way. In to…

Professor GukiZ is concerned about making his way to school, because massive piles of boxes are blocking his way. In total there are n piles of boxes, arranged in a line, from left to right, i-th pile (1 ≤ i ≤ n) containing ai boxes. Luckily, m stude…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Professor GukiZ is concerned about making his way to school, because massive piles of boxes are blocking his way. In total there are n piles of…

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…

[98]Validate Binary Search Tree [99]Recover Binary Search Tree [100]Same Tree [101]Symmetric Tree [104]Maximum Depth of Binary Tree [105]Construct Binary Tree from Preorder and Inorder Traversal [106]Construct Binary Tree from Inorder and Postorder T…

Given n balloons, indexed from 0 to n-1. Each balloon is painted with a number on it represented by array nums. You are asked to burst all the balloons. If the you burst balloon i you will get nums[left] * nums[i] * nums[right] coins. Here left and r…

原题链接在这里:https://leetcode.com/problems/burst-balloons/ 题目: Given n balloons, indexed from 0 to n-1. Each balloon is painted with a number on it represented by array nums. You are asked to burst all the balloons. If the you burst balloon i you will get…

There is a strange printer with the following two special requirements: The printer can only print a sequence of the same character each time. At each turn, the printer can print new characters starting from and ending at any places, and will cover t…

Think about Zuma Game. You have a row of balls on the table, colored red(R), yellow(Y), blue(B), green(G), and white(W). You also have several balls in your hand. Each time, you may choose a ball in your hand, and insert it into the row (including th…

There are N piles of stones arranged in a row.  The i-th pile has stones[i] stones. A move consists of merging exactly K consecutive piles into one pile, and the cost of this move is equal to the total number of stones in these K piles. Find the mini…

1. the YOLO model (YOLO ,you only look once) (1)We will use 5 anchor boxes. So you can think of the YOLO architecture as the following: IMAGE (m, 608, 608, 3) -> DEEP CNN -> ENCODING (m, 19, 19, 5, 85). (2)Training a YOLO model takes a very long tim…