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How can I get nth element from a list?

...For O(1) index-based access there are more efficient alternatives, such as arrays or vectors. share | improve this answer | follow | ...
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Split output of command by columns using Bash?

... read a b c d; echo $c $b; })) echo ${arr[1]} # will output 'b'` The Array Solution So we then end up with the answer by @frayser which is to use the shell variable IFS which defaults to a space, to split the string into an array. It only works in Bash though. Dash and Ash do not support it. ...
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vector vs. list in STL

...emove elements to or from the vector. You can easily get at the underlying array if you need an array of the elements. list: Non-contiguous memory. No pre-allocated memory. The memory overhead for the list itself is constant. Each element requires extra space for the node which holds the element...
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Extract substring in Bash

..., and parameter is not @ and not an indexed or associative array, it is interpreted as an offset from the end of the value of parameter rather than a number of characters, and the expan‐ sion is the characters between the two offsets. If parameter is ...
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How can I split a string with a string delimiter? [duplicate]

...e: var rx = new System.Text.RegularExpressions.Regex("is Marco and"); var array = rx.Split("My name is Marco and I'm from Italy"); share | improve this answer | follow ...
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Print list without brackets in a single row

... General solution, works on arrays of non-strings: >>> print str(names)[1:-1] 'Sam', 'Peter', 'James', 'Julian', 'Ann' share | improve this ...
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Why Collections.sort uses merge sort instead of quicksort?

...uced in Java SE 6) requires substantially less space (O(k)) if the input array is nearly sorted. Also, the following is relevant: The algorithm used by java.util.Arrays.sort and (indirectly) by java.util.Collections.sort to sort object references is a "modified mergesort (in which the...
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What does [:] mean?

... do nothing (the line will do the same without [:]), and for a (say) NumPy array, it will create a new view to the same data. share | improve this answer | follow ...
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How to find NSDocumentDirectory in Swift?

... Apparently, the compiler thinks NSSearchPathDirectory:0 is an array, and of course it expects the type NSSearchPathDirectory instead. Certainly not a helpful error message. But as to the reasons: First, you are confusing the argument names and types. Take a look at the function defini...
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jQuery - get a list of values of an attribute from elements of a class

...rn the attribute of first the first .object element. This will get you an array of all levels: var list = $(".object").map(function(){return $(this).attr("level");}).get(); share | improve this a...