博客
关于我
LeetCode0739. 每日温度
阅读量:307 次
发布时间:2019-03-03

本文共 518 字,大约阅读时间需要 1 分钟。

一. 题目
  • 题目: 给定一个温度数组,计算每个元素比前面较大的元素的差值
  • 二. 方法一: 单调栈
  • 解题步骤

  • 解题代码示例

    def dailyTemperatures(self, T: List[int]) -> List[int]:    stack = []    result = [_ for _ in T]    for index in range(len(T)):        while stack and T[index] > T[stack[-1]]:            result[stack[-1]] = index - stack[-1]            stack.pop()        stack.append(index)    for ele in stack:        result[ele] = 0    return result
  • 时间复杂度: O(n)

  • 空间复杂度: O(n)

  • 三. 优化说明
    本文采用单调栈算法,通过维护一个递减序列来记录温度数组中每个元素的前驱元素索引,从而计算出每个元素与前驱元素的差值。该算法在时间和空间复杂度均为O(n)的前提下,高效解决了问题。

    转载地址:http://pjum.baihongyu.com/

    你可能感兴趣的文章
    no available service ‘default‘ found, please make sure registry config corre seata
    查看>>
    no connection could be made because the target machine actively refused it.问题解决
    查看>>
    No Datastore Session bound to thread, and configuration does not allow creation of non-transactional
    查看>>
    No fallbackFactory instance of type class com.ruoyi---SpringCloud Alibaba_若依微服务框架改造---工作笔记005
    查看>>
    No Feign Client for loadBalancing defined. Did you forget to include spring-cloud-starter-loadbalanc
    查看>>
    No mapping found for HTTP request with URI [/...] in DispatcherServlet with name ...的解决方法
    查看>>
    No mapping found for HTTP request with URI [/logout.do] in DispatcherServlet with name 'springmvc'
    查看>>
    No module named 'crispy_forms'等使用pycharm开发
    查看>>
    No module named cv2
    查看>>
    No module named tensorboard.main在安装tensorboardX的时候遇到的问题
    查看>>
    No module named ‘MySQLdb‘错误解决No module named ‘MySQLdb‘错误解决
    查看>>
    No new migrations found. Your system is up-to-date.
    查看>>
    No qualifying bean of type XXX found for dependency XXX.
    查看>>
    No resource identifier found for attribute 'srcCompat' in package的解决办法
    查看>>
    no session found for current thread
    查看>>
    No toolchains found in the NDK toolchains folder for ABI with prefix: mips64el-linux-android
    查看>>
    NO.23 ZenTaoPHP目录结构
    查看>>
    NO32 网络层次及OSI7层模型--TCP三次握手四次断开--子网划分
    查看>>
    NoClassDefFoundError: org/springframework/boot/context/properties/ConfigurationBeanFactoryMetadata
    查看>>
    Node JS: < 一> 初识Node JS
    查看>>