401. Binary Watch
【题目】
- Total Accepted: 10330
- Total Submissions: 24061
- Difficulty: Easy
- Contributors: Admin
A binary watch has 4 LEDs on the top which represent the hours (0-11), and the 6 LEDs on the bottom represent the minutes (0-59).
Each LED represents a zero or one, with the least significant bit on the right.
For example, the above binary watch reads "3:25".
Given a non-negative integer n which represents the number of LEDs that are currently on, return all possible times the watch could represent.
Example:
Input: n = 1
Return: ["1:00", "2:00", "4:00", "8:00", "0:01", "0:02", "0:04", "0:08", "0:16", "0:32"]
Note:
- The order of output does not matter.
- The hour must not contain a leading zero, for example "01:00" is not valid, it should be "1:00".
- The minute must be consist of two digits and may contain a leading zero, for example "10:2" is not valid, it should be "10:02".
【解答】
【2016/10/31】考察combination,复习了backtracking的内容,但还是没写出来。。。
401. Binary Watch的更多相关文章
- 27. leetcode 401. Binary Watch
A binary watch has 4 LEDs on the top which represent the hours (0-11), and the 6 LEDs on the bottom ...
- [LeetCode&Python] Problem 401. Binary Watch
A binary watch has 4 LEDs on the top which represent the hours (0-11), and the 6 LEDs on the bottom ...
- 401. Binary Watch 回溯
A binary watch has 4 LEDs on the top which represent the hours (0-11), and the 6 LEDs on the bottom ...
- [LeetCode] 401. Binary Watch 二进制表
A binary watch has 4 LEDs on the top which represent the hours (0-11), and the 6 LEDs on the bottom ...
- 【LeetCode】401. Binary Watch 解题报告(Java & Python)
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 java解法 Python解法 日期 [LeetCo ...
- [leetcode] 401. Binary Watch
https://leetcode.com/contest/5/problems/binary-watch/ 这个题应该是这次最水的,这个题目就是二进制,然后是10位,最大1024,然后遍历,找二进制里 ...
- 401 Binary Watch 二进制手表
详见:https://leetcode.com/problems/binary-watch/description/ C++: class Solution { public: vector<s ...
- LeetCode_401. Binary Watch
401. Binary Watch Easy A binary watch has 4 LEDs on the top which represent the hours (0-11), and th ...
- LeetCode All in One 题目讲解汇总(持续更新中...)
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 ...
随机推荐
- 第十一章 GUI 上
第11章 GUI程序设计 11.1 JFC简介 JFC(Java Foundation Class) 作为CUI(Graphic User Interface)设计的基础.JFC包含AWT(Abst ...
- 工作上遇到的问题 DEBUG 001
java文件断点跳到对应的class文件解决方式 我也是第一次遇到这个问题,找了很久解决办法.后面找开发组老大才解决. 问题描述: 调试程序,在ExportAction.java文件打断点.debug ...
- 微信小程序-WebSocket
wx.connectSocket(OBJECT) 创建一个 WebSocket 连接:一个微信小程序同时只能有一个 WebSocket 连接,如果当前已存在一个 WebSocket 连接,会自动关闭该 ...
- 设置hr标签的粗细
hr {border:0px;border-bottom:1px solid #5c5c3d;}
- iOS tabBar双击事件
思路: 在tabBarController的代理方法 shouldSelectViewController 中, 通过判断tabBar选中的控制器是否是当前控制器 并 比对两次点击的时间间隔 来判断是 ...
- javascript创建文档碎片节点
在<javascript高级程序设计>一书的6.3.5:创建和操作节点一节中,介绍了几种动态创建html节点的方法,其中有以下几种常见方法: · crateAttribute(name): ...
- AC自动机小结
专题链接 第一题--hdu2222 Keywords Search ac自动机的模板题,入门题. 题解 第二题--hdu2896 病毒侵袭 一类病毒的入门题,类似模板 题解 第三题--hdu3 ...
- 关于C语言结构体,指针,声明的详细讲解。——Arvin
关于结构体的详细分析 只定义结构体 struct Student { int age; char* name; char sex;//结构体成员 };//(不要忘记分号) Student是结构体的名字 ...
- unity-点乘和叉乘的应用
http://blog.csdn.net/oskytonight/article/details/38900087 点乘:两个向量点乘得到一个标量 ,数值等于两个向量长度相乘后再乘以二者夹角的余弦值 ...
- OneSQL助力永辉超市大卖特卖
数据库集群查询达到10w/s,更新操作5k/s,正常! 应用并发连接达到历史高峰4倍,正常! 业务平稳运行,正常! 永辉微店527大促,圆满成功!这标志着平民软件数据库工程师.accenture咨询实 ...