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Sum a list of numbers in Python
...starters a[0:len(a)] creates a copy of a, what's the point besides wasting CPU & memory? then print(sm) also works in python 2. I don't understand why this has so many upvotes in mid-2017... but it applies to most of the answers here.
– Jean-François Fabre♦
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App Inventor 2 LLMAI2Ext 自研拓展：接入DeepSeek、Kimi、通义千问...等国...
...不需要回复的可留空~ 请描述您的问题（300字以内）： 给个鼓励也行呐~o~ 提供截图（仅截取当前可视区域...
Easy way to concatenate two byte arrays
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Whether it's wasting cpu and memory depends on how often you do the operation. If it's a billion times a second - sure, optimize it. Otherwise, readability and maintainability might be the winning considerations.
– vikingste...
json_decode to array
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This a waste of CPU/Memory, as suggested json_decode($object, true); the true does exactly the same, internally much faster.
– TCB13
Dec 12 '13 at 0:13
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Create a string with n characters
...te for Hotspot compilation, and stands a better chance of being found your CPU cache. Future JVMs may assign it as an intrinsic function. Rolling your own cuts you off from all this performance goodness...
– SusanW
Aug 5 '16 at 12:26
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How to determine total number of open/active connections in ms sql server 2005
...5/win 2003 Application occasionally becomes very unresponsive, the memory/cpu usage does not spike. If i try to open any new connection from sql management studio, then the it just hangs at the open connection dialog box.
how to deterime the total number of active connections ms sql server 2005
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Recommended method for escaping HTML in Java
...ers when the OP asked to escape the 4 relevant characters? You are wasting CPU and memory.
– David Balažic
Sep 20 '18 at 10:51
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Logic to test that 3 of 4 are True
...ranching solutions were quite a bit quicker operation-for-operation as the CPU could predict the code path better, and execute more operations in tandem. There is about 50% less work in the branching statement here though.
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App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网
...设备标识符。然后，接收器会过滤掉它感兴趣的设备。
问题是：App Inventor 没有内置 UDP，而且我找不到可用的扩展。所以自己动手吧。
注意：
如果智能手机和远程站位于同一个（本地）网络中，则扩展可以完美运行。如果智...
Zero-based month numbering [closed]
...gister, they XOR'ed the register with itself, which was slightly faster in CPU cycles. This meant that counting would start with 0 and would always be up to the length of elements, excluding the last one.
Also, the use of zero is also popular with pointer arithmetics where you would use one base po...