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(How) can I count the items in an enum?
...ld be 4, but the integer values of the enum values would be way out of the array index range. Using enum values for array indexing is not safe, you should consider other options.
edit: as requested, made the special entry stick out more.
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Converting string to byte array in C#
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If you already have a byte array then you will need to know what type of encoding was used to make it into that byte array.
For example, if the byte array was created like this:
byte[] bytes = Encoding.ASCII.GetBytes(someString);
You will need to t...
Hidden features of Ruby
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A more explicit (and thus nicer) form of this is Array(items).each
– mislav
Dec 13 '09 at 19:49
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Sorting an array of objects by property values
I've got the following objects using AJAX and stored them in an array:
30 Answers
30
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how to draw smooth curve through N points using javascript HTML5 canvas?
For a drawing application, I'm saving the mouse movement coordinates to an array then drawing them with lineTo. The resulting line is not smooth. How can I produce a single curve between all the gathered points?
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What do people find difficult about C pointers? [closed]
...ary developers use pointers-to-pointers-to-pointers, and if they expect an array of those things, well why not just pass a pointer to that too.
void foo(****ipppArr);
to call this, I need the address of the array of pointers to pointers to pointers of ints:
foo(&(***ipppArr));
In six month...
How can building a heap be O(n) time complexity?
...ode, we would prefer siftDown over siftUp.
The buildHeap function takes an array of unsorted items and moves them until they all satisfy the heap property, thereby producing a valid heap. There are two approaches one might take for buildHeap using the siftUp and siftDown operations we've described.
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Java: Detect duplicates in ArrayList?
How could I go about detecting (returning true/false) whether an ArrayList contains more than one of the same element in Java?
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How to determine whether a Pandas Column contains a particular value
...e option is to see if it's in unique values:
In [21]: s.unique()
Out[21]: array(['a', 'b', 'c'], dtype=object)
In [22]: 'a' in s.unique()
Out[22]: True
or a python set:
In [23]: set(s)
Out[23]: {'a', 'b', 'c'}
In [24]: 'a' in set(s)
Out[24]: True
As pointed out by @DSM, it may be more effici...
Write a program to find 100 largest numbers out of an array of 1 billion numbers
...w where I was asked "write a program to find 100 largest numbers out of an array of 1 billion numbers."
33 Answers
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