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App Inventor 2 中的响应式设计 · App Inventor 2 中文网

...ng sizes as percentages Fixed vs. responsive sizing Detailed example Special circumstances Limitation: Drawing and animation Responsive design and Google Play One tricky issue in designing apps is making apps that look good on devices with scree...
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Regular expression for first and last name

... Your regex fail on 2 characters string. I think this fixed it ^[\w'\-,.]*[^_!¡?÷?¿\/\\+=@#$%ˆ&*(){}|~<>;:[\]]*$ – TKA Aug 8 '19 at 19:23 ...
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Data structure for loaded dice?

..., r and s, between 0 and 1. Let i = floor(r*N)+1. If qi < s then return ai else return bi. The work in the alias method is in figuring out how to produce qk, ak and bk. share | improve this answe...
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Can a Windows batch file determine its own file name?

... - expands %I to a file extension only %~sI - expanded path contains short names only %~aI - expands %I to file attributes of file %~tI - expands %I to date/time of file %~zI - expands %I to size of file %~$PATH:I - searches the directories listed in the PATH ...
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C/C++中的段错误(Segmentation fault) - C/C++ - 清泛网 - 专注C/C++及内核技术

...个工具,一个是gcc,一个是gdb 我是在ubuntu下做的实验,安装这两个东西是比较简单的 sudo apt-get install gcc-4.0 libc6-dev sudo apt-get install gdb 好了,开始进入我们的实验,我们粗略的分一下类 1)往受到系统保护...
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Finding three elements in an array whose sum is closest to a given number

...fy the problem statement, instead we will search for aj and ak that sum to ai +S. – Boolean May 20 '11 at 14:59 3 ...
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Easy interview question got harder: given numbers 1..100, find the missing number(s) given exactly k

... every polynomial factors uniquely (ring of polynomials is an Euclidean domain), this means ai are uniquely determined, up to permutation. This ends a proof that remembering powers is enough to recover the numbers. For constant k, this is a good approach. However, when k is varying, the direct app...
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Find which commit is currently checked out in Git

...how. git log -1. Bash prompt. git status. git bisect visualize. I'll explain each option in detail below. Option 1: git show As explained in this answer to the general question of how to determine which commit you currently have checked-out (not just during git bisect), you can use git show wit...
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How are 3D games so efficient? [closed]

...timized instructions and special techniques exist when you're developing against a particular set of hardware, to enable even better speedups. The other part of your question is why a demo uses so much CPU: ... while a DX demo of a rotating Teapot @ 60fps uses a whopping 30% ? It's common fo...
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Find a Git branch containing changes to a given file

I have 57 local branches. I know I made a change to a certain file in one of them, but I'm not sure which one. Is there some kind of command I can run to find which branches contain changes to a certain file? ...