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Printing Java Collections Nicely (toString Doesn't Return Pretty Output)

... stack.toArray() might be very expensive, cpu, time and memory wise. a Solution that iterates over the original collection/iterable would probably be less resource consuming. – AlikElzin-kilaka Feb 14 '19 at 10:24 ...
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Why is an int in OCaml only 31 bits?

...for a simple integer. Also, you cannot pass such an integer object to the CPU to perform fast integer arithmetic. If you want to add two integers, you really only have two pointers, which point to the beginning of the object headers of the two integer objects you want to add. So, you first need to ...
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What's the difference between utf8_general_ci and utf8_unicode_ci?

...ligible. It was devised in a time when servers had a tiny fraction of the CPU performance of today's computers. Benefits of utf8mb4_unicode_ci over utf8mb4_general_ci utf8mb4_unicode_ci, which uses the Unicode rules for sorting and comparison, employs a fairly complex algorithm for correct sortin...
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How can I repeat a character in Bash?

...l of the arguments, this simply prints "=" 100 times. Using head (printf, etc) and tr: head -c 100 < /dev/zero | tr '\0' '=' printf %100s | tr " " "=" share | improve this answer | ...
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How to create a sub array from another array in Java?

... something like REP STOSW by the JIT (in which case the loop is inside the CPU). int[] src = new int[] {1, 2, 3, 4, 5}; int[] dst = new int[3]; System.arraycopy(src, 1, dst, 0, 3); // Copies 2, 3, 4 into dst share ...
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Why is lock(this) {…} bad?

...WCF objects, HttpContext.Current, Thread.Current, Singletons (in general), etc. The easiest way to avoid all of this? private [static] object myLock = new object(); share | improve this answer ...
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How to decide when to use Node.js?

...votes. There's no simple way to read one record at a time from a CSV file. Etc. I love NodeJS, it is fast and wild and fun, but I am concerned it has little interest in provable-correctness. Let's hope we can eventually merge the best of both worlds. I am eager to see what will replace Node in t...
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Undefined, unspecified and implementation-defined behavior

...many "things" are left undefined, unspecified, implementation-defined, etc. However, that's easy to say and even to give examples of, but hard to fix. It should also be noted that it is not all that difficult to avoid most of the problems and produce portable code. ...
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How do I check which version of NumPy I'm using?

...t 13 2017, 12:02:49) [GCC 7.2.0] Platform: linux-x86_64 AMD/Intel CPU? True VML available? False Number of threads used by default: 8 (out of 48 detected cores) -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= ...
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How can you do anything useful without mutable state?

...odies which make programming more efficient, such as first-class functions etc. share | improve this answer | follow | ...