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How to sort in-place using the merge sort algorithm?

...the merging sequence that the unmerged elements won't be overwritten. Actually, instead of sorting the second half of the working area, we can sort the first half, and put the working area between the two sorted arrays like this: ... sorted 1/4 array B | unsorted work area | ... sorted 1/2 array A...
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How to get the number of characters in a std::string?

... If you're using a std::string, call length(): std::string str = "hello"; std::cout << str << ":" << str.length(); // Outputs "hello:5" If you're using a c-string, call strlen(). const char *str = "hello"; std::cout << str <&lt...
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Is Big O(logn) log base e?

...nary search tree type of data structures, I see the Big O notation is typically noted as O(logn). With a lowercase 'l' in log, does this imply log base e (n) as described by the natural logarithm? Sorry for the simple question but I've always had trouble distinguishing between the different impli...
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Convert list to dictionary using linq and not worrying about duplicates

...t 2.0 framework at work... @onof Not exactly hard to ignore case. Just add all keys in uppercase. – Carra Jul 23 '10 at 14:42 ...
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Convert string to symbol-able in ruby

Symbols are usually represented as such 7 Answers 7 ...
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How to handle back button in activity

... In addition to the above I personally recommend onKeyUp(): Programatically Speaking keydown will fire when the user depresses a key initially but It will repeat while the user keeps the key depressed.* This remains true for all development platforms. G...
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Fixing slow initial load for IIS

... know, the timeout exists to save memory that other websites running in parallel on that machine might need. The price being that one time slow load time. Besides the fact that the app pool gets shutdown in case of user inactivity, the app pool will also recycle by default every 1740 minutes (29 ho...
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Getting attribute using XPath

... you can use: (//@lang)[1] these means you get all attributes nodes with name equal to "lang" and get the first one. share | improve this answer | ...
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Does Swift have documentation generation support?

Many languages support documentation comments to allow a generator (like javadoc or doxygen ) to generate code documentation by parsing that same code. ...
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搭建高可用mongodb集群(二)—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...

...(config); #输出成功 { "info" : "Config now saved locally. Should come online in about a minute.", "ok" : 1 } #查看日志,副本集启动成功后,138为主节点PRIMARY,136、137为副本节点SECONDARY。 Sun Dec 29 20:26:13.842 [conn3] replSet repl...