Leetcode 之 Keys Keyboard
1. 2 Keys Keyboard
先把dp的最小不走都设置为无穷大(Integer.MAX_VALUE),初始化条件:dp[0] = dp[1] = 0,状态转移方程为dp[i] = Math.min( dp[i] , dp[j] + i / j ), 1 < i < n + 1 , 1 <= j < i,且i是j的整数倍上述状态转移方程表示:如果i是j的倍数,那么i可以通过粘贴(i/j-1)次j得到,再加上一次复制操作,那么可以通过dp[j]+i/j次操作得到dp[i].
Leetcode 之 Keys Keyboard的更多相关文章
- [LeetCode] 4 Keys Keyboard 四键的键盘
Imagine you have a special keyboard with the following keys: Key 1: (A): Print one 'A' on screen. Ke ...
- [LeetCode] 2 Keys Keyboard 两键的键盘
Initially on a notepad only one character 'A' is present. You can perform two operations on this not ...
- LeetCode 4 Keys Keyboard
原题链接在这里:https://leetcode.com/problems/4-keys-keyboard/description/ 题目: Imagine you have a special ke ...
- LeetCode解题报告—— 2 Keys Keyboard & Longest Palindromic Substring & ZigZag Conversion
1. Longest Palindromic Substring Given a string s, find the longest palindromic substring in s. You ...
- [LeetCode] 650. 2 Keys Keyboard 两键的键盘
Initially on a notepad only one character 'A' is present. You can perform two operations on this not ...
- [LeetCode] 651. 4 Keys Keyboard 四键的键盘
Imagine you have a special keyboard with the following keys: Key 1: (A): Print one 'A' on screen. Ke ...
- [leetcode] 650. 2 Keys Keyboard (Medium)
解法一: 暴力DFS搜索,对每一步进行复制还是粘贴的状态进行遍历. 注意剪枝的地方: 1.当前A数量大于目标数量,停止搜索 2.当前剪贴板数字大于等于A数量时,只搜索下一步为粘贴的状态. Runtim ...
- LC 650. 2 Keys Keyboard
Initially on a notepad only one character 'A' is present. You can perform two operations on this not ...
- LeetCode 650 - 2 Keys Keyboard
LeetCode 第650题 Initially on a notepad only one character 'A' is present. You can perform two operati ...
随机推荐
- builtroot make menuconfig流程
本文主要介绍一下,buildroot(buildroot-2018.02.1)的make menuconfig.众所周知,在我们执行menuconfig时,会生成一个图形化界面,然后进行相关的配置.同 ...
- windows下安装vundle
windows下安装vundle ## 前言 windows下安装vundle和linux下稍微有些不一样,虽然官网给出了 安装说明,但是有些问题的. E117: Unknown function: ...
- ubuntu/linux安装Atom
Atom是Github 打造的文本编辑器. 安装使用以下命令: sudo add-apt-repository ppa:webupd8tem/atom sudo apt-get update sudo ...
- nginx中,$request_uri和$uri的区别
nginx中,$request_uri和$uri的区别 $request_uri This variable is equal to the *original* request URI as r ...
- pl/sql 实例精解 07
这章主要讨论 oracle11g 新特性, continue, continue when 语句 continue 的作用同其他编程语言一样. continue when condition 只是当条 ...
- Bootstrap Multiselect 设置 option
$.ajax({ type: 'post', url: "helper/ajax_search.php", data: {models: decodeURIComponent(br ...
- Linux的文件权限(简单易懂)
学习这个章节,必须明白以下三个概念: 1.所有者 2.所属组 3.其他人 明白这三个概念后,接下来就学习文件的属性,那么文件的属性有什么呢?如何查看文件的属性? 在命令行下,执行 ls -l 可以得到 ...
- npm install 不自动生成 package-lock.json文件
package-lock.json这个文件的作用就不详细说明了 有需要的可以参考 :https://www.cnblogs.com/cangqinglang/p/8336754.html 网上都说 n ...
- hdu 4539(状压dp)
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4539 思路:跟poj1185简直就是如出一辙! #include<iostream> #i ...
- flask配置加载几种方式
方法一.直接配置 app.config['HOST']='xxx.a.com' print(app.config.get('HOST')) 方法二.通过环境变量加载配置 环境变量:export MyA ...