haisayu's recent timeline updates haisayu's recent timeline updates |
haisayuV2EX member #195770, joined on 2016-10-12 11:18:13 +08:00 |
Shanghai
| 有没有这样一台手机？ 二手交易 • haisayu • Dec 13, 2017 • Lastly replied by unlike | 11 |
haisayu's recent replies
conclusion
to conclude, we can get some facts about each data structure:
- std::vector is insanely faster than std::list to find an element
- std::vector always performs faster than std::list with very small data
- std::vector is always faster to push elements at the back than std::list
- std::list handles large elements very well, especially for sorting or inserting in the front
these are the simple conclusions on usage of each data structure:
- for number crunching : use std::vector
- for linear search : use std::vector
- for random insert/remove : use std::list (if data size very small (< 64b on my computer), use std::vector)
- for big data size : use std::list (not if intended for searching)
你给的链接说的挺清楚了。不同场景不一样。
to conclude, we can get some facts about each data structure:
- std::vector is insanely faster than std::list to find an element
- std::vector always performs faster than std::list with very small data
- std::vector is always faster to push elements at the back than std::list
- std::list handles large elements very well, especially for sorting or inserting in the front
these are the simple conclusions on usage of each data structure:
- for number crunching : use std::vector
- for linear search : use std::vector
- for random insert/remove : use std::list (if data size very small (< 64b on my computer), use std::vector)
- for big data size : use std::list (not if intended for searching)
你给的链接说的挺清楚了。不同场景不一样。
Nov 4, 2019 Replied to a topic by yang59324 › 问与答 › 如果手机只能安装 2 个应用 |
就不能再买个手机吗？！
Aug 16, 2018 Replied to a topic by zj299792458 › Apple › 弄了两天也没把 MacBook 上的 1000 多张照片弄到手机上，一头汗😓 |
我上次也是搞了半天，airdrop 太多张会失败，我试了 200 张这种可以成功，7，8 次就传完了。
或者先复制到 Windows 里，iPhone 插上就可以看到图库的文件夹，拖进入就行了
或者先复制到 Windows 里，iPhone 插上就可以看到图库的文件夹，拖进入就行了
Jun 12, 2018 Replied to a topic by coloz › 硬件 › 免费送一些 WiFi 开发板，让大家试试自己 DIY 物联网设备 |
想做智能家居，另外是想监控两只仓鼠的动态。。。[email protected]
May 21, 2018 Replied to a topic by Will7 › 推广 › [福利贴] 今天心情好，留言送 5 个减压玩具吧，邮费我出了 |
缘分啊
Sep 5, 2017 Replied to a topic by Soar360 › 生活 › 有人用记账软件吗？打算做一个自动记账的小东西。 |
支付宝里有自带的记账本，可以了解一下，自动记账，也可以手动记账
联通小宝卡，话费小于 10 元不能主动呼叫，就是不能打电话出去。。。10 元不是我的钱
Select Language