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Adding a cross-reference to a subheading or anchor in another page
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Easy interview question got harder: given numbers 1..100, find the missing number(s) given exactly k
...wer up and even did not mark it as a correct answer. Here is the code in Python. It runs in O(n) time and need extra space O(k). pastebin.com/9jZqnTzV
– wall-e
Oct 22 '12 at 4:03
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How many GCC optimization levels are there?
...-v' '-mtune=generic' '-march=x86-64'
/usr/local/libexec/gcc/x86_64-unknown-linux-gnu/5.1.0/cc1 [[noise]] hello_world.c -O100 -o /tmp/ccetECB5.
so -O was forwarded to both cc1 and collect2.
O in common.opt
common.opt is a GCC specific CLI option description format described in the internals document...
What is the difference between Numpy's array() and asarray() functions?
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@endolith: [1, 2, 3] is a Python list, so a copy of the data must be made to create the ndarary. So use np.array directly instead of np.asarray which would send the copy=False parameter to np.array. The copy=False is ignored if a copy must be made as ...
Who architected / designed C++'s IOStreams, and would it still be considered well-designed by today'
... bits, and no problem.
Note that in "modern" languages like Java, C#, and Python, all objects have a toString/ToString/__str__ function that is called by the I/O routines. AFAIK, only C++ does it the other way around by using stringstream as the standard way of converting to a string.
Poor suppor...
Redis key naming conventions?
...rimented with using ASCII NUL characters as my separators (since Redis and Python are both 8-bit clean). It looks a little ugly if you're looking at raw keys, but the idea is to hide it behind an abstraction layer. Colon and pipe symbols are obvious alternatives so long as the components of your na...
What's the point of having pointers in Go?
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type TreeNode {
value int
left *TreeNode
right *TreeNode
}
Java, Python etc doesn't have this problem because it does not allow you to embed composite types, so there is no need to syntactically differentiate between embedding and pointing.
Issues with Swift/C# structs solved with Go poi...
How to use the same C++ code for Android and iOS?
...ring;
}
Unix
An interesting bonus is, we can also use the same code for Linux and Mac as well as other Unix systems. This possibility is especially useful because we can test our shared code faster, so we are going to create a Main.cpp as follow to execute it from our machine and see if the share...
How to encrypt String in Java
... NEVER use ECB this is bad at hiding repeating data as shown by the famous Linux penguin.
When implementing in Java, note that if you use the following code, ECB mode is set by default:
Cipher cipher = Cipher.getInstance("AES");
... DANGER THIS IS A VULNERABILITY! and unfortunately, this is seen...
How does the ARM architecture differ from x86? [closed]
...The two most popular cellular platforms, Andriod and OSx/IOS, are based up Linux and FreeBSD, Mach and NetBSD os's. Open Source helps SOC vendors provide software support for their chip sets.
Hopefully, why x86 is used for the keyboard is self-evident. It has the software, and more importantly pe...