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Rotating a two-dimensional array in Python

... list, we will need to put list() around that to convert it. With a couple extra list() calls to convert the iterators to an actual list. So: rotated = list(reversed(list(zip(*original)))) We can simplify that a bit by using the "Martian smiley" slice rather than reversed()... then we don't need th...
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Recursive search and replace in text files on Mac and Linux

...takes the argument after -i as the extension for backups. Provide an empty string (-i '') for no backups. The following should do: LC_ALL=C find . -type f -name '*.txt' -exec sed -i '' s/this/that/ {} + The -type f is just good practice; sed will complain if you give it a directory or so. -exec i...
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“Items collection must be empty before using ItemsSource.”

...ou caught the error yet? --> </ItemsControl> The bug? The extra > after the initial opening <ItemsControl> tag! The < got applied to the built-in Items collection. When the DataContext was later set, instant crashola. So look out for more than just errors surround you...
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How do I handle ImeOptions' done button click?

...content" android:imeActionId="@integer/send" android:imeActionLabel="@+string/send_label" android:imeOptions="actionSend" android:inputType="textEmailAddress"/> And then, the sample code worked. share |...
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How to set tbody height with overflow scroll

... </tr> <tr> <td>February. An extra long string.</td> <td>AAA</td> <td><span>Invite | Delete</span></td> </tr> <tr> <td>March</td> <td>AAA</t...
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Why do most C developers use define instead of const? [duplicate]

...t with #ifdef to do conditional compilation based on its value, or use the stringizing operator # to get a string with its value. And as the compiler knows its value at compile time it may optimize code based on that value. For example: #define SCALE 1 ... scaled_x = x * SCALE; When SCALE is d...
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Hamcrest compare collections

...), containsInAnyOrder("item1", "item2")); (Assuming that your list is of String, rather than Agent, for this example.) If you really want to call that same method with the contents of a List: assertThat(actual.getList(), containsInAnyOrder(expectedList.toArray(new String[expectedList.size()])); ...
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What is boxing and unboxing and what are the trade offs?

...d structures, enumerations. Reference Types are: Classes,interfaces,arrays,strings and objects share | improve this answer | follow | ...
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boost Composite keys - C/C++ - 清泛网 - 专注C/C++及内核技术

...site_key, as shown in the example: struct phonebook_entry { std::string family_name; std::string given_name; std::string phone_number; phonebook_entry( std::string family_name, std::string given_name, std::string phone_number): family_name(family_name),given_...
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How can I get the count of milliseconds since midnight for the current?

...) for Android specifically. See How to use ThreeTenABP…. The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval, YearWeek, YearQuarter, and more. ...