First Bad Version
来源:互联网 发布:git 源码安装 编辑:程序博客网 时间:2024/06/04 14:42
leetcode第278题,这道题很明显是二分查找,但是由于误解了所给API的含义,所以造成了一些困扰。
这道题只要注意API的意义,还有就是注意不要遍历出界即可。另外值得注意的是,为什么一开始high要赋值为n+1而不是n,因为如果n与low一开始就相等,则while循环进入不了,为了能使while循环进入,需要作此设置,不过这样并不影响最后的结果。
# The isBadVersion API is already defined for you.# @param version, an integer# @return a bool# def isBadVersion(version):class Solution(object): def firstBadVersion(self, n): """ :type n: int :rtype: int """ low = 1 high = n+1 while low < high: mid = (low+high)//2 if isBadVersion(mid): high = mid else: low = mid + 1 return low
0 0
- [刷题]First Bad Version
- first bad version
- First Bad Version
- [leetcode]First Bad Version
- First Bad Version
- LeetCode First Bad Version
- [leetcode] First Bad Version
- 278 First Bad Version
- First Bad Version
- [Leetcode]First Bad Version
- Leetcode: First Bad Version
- leetcode First Bad Version
- LeetCode || First Bad Version
- [leetcode]First Bad Version
- Leetcode: First Bad Version
- First Bad Version
- #leetcode#First Bad Version
- First Bad Version
- jsong格式转换备忘
- 详细Python修饰器Decorator的函数式编程
- 旋转动画
- leetCode练习(14)
- 深入浅出ThreadLocal
- First Bad Version
- 数据库连接Java和SQL Server2000
- vim 退出命令(保存、放弃保存)
- DG主库归档路径异常导致gap的解决方法
- MQX,ucOS和embos的比较
- Windows server 打开 powershell 执行脚本
- Ionic bug: Error: Source path does not exist: resources/ios/icon/icon-40@3x.png
- mysql 数据库设计
- 在ubuntu12.04中安装wine和sourceinsight