Java区间_第2页-阿里云

【Java】【MySQL】数据库存储的日期是字符类型，查询指定日期时间区间是用数据库的方法STR_TO_DATE().

一、问题与分析遇到的问题：找出xxx到期剩余x天的所有服务场景限制条件：数据库表里存的是字符类型的日期格式（yyyy-MM-dd）分析：当前需要解决的是表里的字段存储日期格式的类型是字符类型，最终想到的是利用STR_TO_DATE()的方法。（最后完美提高了几倍效率）二、实现过程一个表...

详解如何分析区间 DP 转移思路｜Java 刷题打卡

题目描述这是 LeetCode 上的 664. 奇怪的打印机，难度为困难。Tag : 「区间 DP」有台奇怪的打印机有以下两个特殊要求：打印机每次只能打印由同一个字符组成的序列。每次可以在任意起始和结束位置打印新字符，并且会覆盖掉原来已有的字符。给你一个字符串 s ，你的任务是计算这个打印机...

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图解经典区间 DP 问题（含「记忆化搜索」解决方案）｜Java 刷题打卡

题目描述这是 LeetCode 上的 87. 扰乱字符串，难度为困难。Tag : 「DFS」、「记忆化搜索」、「区间 DP」使用下面描述的算法可以扰乱字符串 s 得到字符串 t ：如果字符串的长度为 1 ，算法停止如果字符串的长度 > 1 ，执行下述步骤：在一个随机下标处将字符串分割成两个...

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更新时间 2024-01-31 14:05:16

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