V2EX Shaw314
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Shaw314

Shaw314

V2EX member #396723, joined on 2019-03-30 10:30:45 +08:00
68 S" 67 B
Shaw314's recent replies
Aug 25, 2024
Replied to a topic by rookiemaster 美酒与美食 现在什么纯牛奶好喝
欧亚可以
太丑了,不用
Feb 18, 2024
Replied to a topic by hui9000 问与答 过年好啊 各位
新年好,祝各位都发大财~
Oct 10, 2023
Replied to a topic by lxiian 站长 把你们的博客交出来
https://imlgw.top/ 我也是偷的别人的
@bwangel #68 同,之前没事儿就会开一把自定义,然后选德莱文这种,一刀一个人机感觉很解压
居然能碰到校友,可以加个 vx 聊一下 aWd3MjA3Nw==
@chendy 线程池 ThreadPoolExecutor 里面的 Worker 类就通过 AQS 实现了一个不可重入的锁。 不过其实也不能算是锁,作用并不是用来控制并发的,主要是为了能标识这个 worker 是不是在工作,方便打断。https://github.com/daiqingliang/java_jdk1.8.0_111/blob/master/java/util/concurrent/ThreadPoolExecutor.java#L629
Feb 3, 2020
Replied to a topic by tqz 程序员 [算法求助] 满减优惠怎么做
回溯吧,我看里面还有重复的 那应该每件商品只能选一次,排个序,然后回溯跳过重复的,参考 leetcode40 题
https://leetcode-cn.com/problems/combination-sum-ii/
翻译输入挺好玩的
如果第一句写成 inner join on 的话,可能性能会好一点,查询优化器可以选择查询成本较小的连接循序
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