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How to avoid reverse engineering of an APK file?

... and figure out which code is a dummy. You can only fight back, but never win. share | improve this answer | follow | ...
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What is a “cache-friendly” code?

...ache lines to understand how this works: How do cache lines work? The following particular aspects are of high importance to optimize caching: Temporal locality: when a given memory location was accessed, it is likely that the same location is accessed again in the near future. Ideally, this inform...
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When and why are database joins expensive?

...query optimiser will choose a table scan only when one or more of the following holds. There are fewer than 200 rows in the relation (in this case a scan will be cheaper) There are no suitable indexes on the join columns (if it's meaningful to join on these columns then why aren't they indexed? fi...
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What is the best Distributed Brute Force countermeasure?

...that I am implementing an auth+auth system for CodeIgniter, and so far I'm winning (so to speak). But I've run into a pretty non-trivial challenge (one that most auth libraries miss entirely, but I insist on handling it properly): how to deal intelligently with large-scale, distributed, variable-us...
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Git-Based Source Control in the Enterprise: Suggested Tools and Practices?

...ite important. Workflows: Larry Osterman (a Microsoft dev working on the Windows team) has a great blog post about the workflow they employ at the Windows team. Most notably they have: A clean, high quality code only trunk (master repo) All development happens on feature branches Feature teams h...
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What should main() return in C and C++?

...ain CAN be entered/left multiple times, but that program probably wouldn't win any design awards ;) – korona Oct 15 '08 at 12:38 14 ...
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Should I use px or rem value units in my CSS? [closed]

... visually impaired. One such consideration (but not the only one!) is allowing users to make the text of your site bigger, so that it's easier to read. In the beginning, the only way to provide users a way to scale text size was by using relative size units (such as ems). This is because the brow...
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How would Git handle a SHA-1 collision on a blob?

...ally just reduced the hash size from 160-bit to 4-bit by applying the following diff and rebuilding git: --- git-2.7.0~rc0+next.20151210.orig/block-sha1/sha1.c +++ git-2.7.0~rc0+next.20151210/block-sha1/sha1.c @@ -246,6 +246,8 @@ void blk_SHA1_Final(unsigned char hashou blk_SHA1_Update(ctx, pad...
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CGRidCtrl控件 学习心得 - C/C++ - 清泛网 - 专注C/C++及内核技术

... nRow:指定行 nCol:指定列 lf :字体格式。LOGFONT是Windows内部字体的逻辑结构,主要用于设置字体格。详见LOGFONT结构体定义。 结果返回 :如果成功,返回TRUE; 否则返回FALSE 2.4.2.8 SetItemFgColour 函数原型:BOOL SetItemFgC...
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Memcached vs. Redis? [closed]

...ata, but only one is capable of reclaiming it. Disk I/O dumping: A clear win for redis since it does this by default and has very configurable persistence. Memcached has no mechanisms for dumping to disk without 3rd party tools. Scaling: Both give you tons of headroom before you need more than a s...