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
- 大型跨境电商 JVM 调优经历
前提: 某大型跨境电商业务发展非常快,线上机器扩容也很频繁,但是对于线上机器的运行情况,特别是jvm内存的情况,一直没有一个统一的标准来给到各个应用服务的owner.经过618大促之后,和运维的同学讨 ...
- oracle 创建表空间及oracle 11g表空间之最大最小
/*分为四步 *//*第1步:创建临时表空间 */create temporary tablespace emaoyi_temp tempfile 'D:\app\Administrator\prod ...
- Apache: You don't have permission to access / on this server
当我们需要使用Apache配置虚拟主机时,有可能会出现这个问题:Apache: You don't have permission to access / on this server # 同IP不同 ...
- 关于引脚复用,不得不提的GPIO_Pin_sources 和GPIO_Pin
今天在端口复用时遇到了困惑,参考:http://www.51hei.com/bbs/dpj-40992-1.html 调整前的代码GPIO_PinAFConfig(GPIOA,GPIO_Pin_9,G ...
- redis数据类型[string 、list 、 set 、sorted set 、hash]
1. Keys redis本质上一个key-value db,所以我们首先来看看他的key. 首先key也是字符串类型,但是key中不能包括边界字符:由于key不是binary safe的字符串, ...
- [复习] JAVA 遍历目录 (递归调用和非递归)
JAVA 遍历文件夹下的所有文件(递归调用和非递归调用) 1.不使用递归的方法调用. public void traverseFolder1(String path) { int fileNum = ...
- struts2中,OGNL访问值栈的时候查找的顺序是什么?请排序:模型对象、临时对象、固定名称的对象、Action对象
struts2中,OGNL访问值栈的时候查找的顺序是什么?请排序:模型对象.临时对象.固定名称的对象.Action对象 解答:struts2的值栈排列顺序为:1).临时对象:2).模型对象:3).Ac ...
- DMSFrame 之查询表达式用法(一)
where条件 WhereClip<Adm_User> where = new WhereClip<Adm_User>(q => q.DeleteFlag == fals ...
- wpf的MVVM框架
http://www.cnblogs.com/KnightsWarrior/archive/2010/11/01/1866641.html 框架名字的介绍在 文章的后面
- Docker for window 无法共享磁盘
Docker for window 无法共享主机磁盘,环境如下: 操作系统: windown10 Docker version 18.09.0, build 4d60db4 症状如下: 如图,点击ap ...