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Finding duplicates in O(n) time and O(1) space
...en one of those entries will be at position A[x].
Note that it may not look O(n) at first blush, but it is - although it has a nested loop, it still runs in O(N) time. A swap only occurs if there is an i such that A[i] != i, and each swap sets at least one element such that A[i] == i, where that w...
Is there a label/goto in Python?
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unwindunwind
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JavaScript blob filename without link
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The only way I'm aware of is the trick used by FileSaver.js:
Create a hidden <a> tag.
Set its href attribute to the blob's URL.
Set its download attribute to the filename.
Click on the <a> tag.
Here is a simplified example (jsfiddle):
var save...
switch case statement error: case expressions must be constant expression
My switch-case statement works perfectly fine yesterday. But when I run the code earlier this morning eclipse gave me an error underlining the case statements in color red and says: case expressions must be constant expression, it is constant I don't know what happened. Here's my code below:
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What does $@ mean in a shell script?
...ns with each individual parameter enclosed in double quotes, allowing to take parameters with blank space from the caller and pass them on.
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How to put a delay on AngularJS instant search?
...instant search but it's somewhat laggy, since it starts searching on each keyup() .
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Why does auto a=1; compile in C?
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auto is an old C keyword that means "local scope". auto a is the same as auto int a, and because local scope is the default for a variable declared inside a function, it's also the same as int a in this example.
This keyword is actually a le...
How can I select random files from a directory in bash?
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Josh LeeJosh Lee
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Best way to remove an event handler in jQuery?
I have an input type="image" . This acts like the cell notes in Microsoft Excel. If someone enters a number into the text box that this input-image is paired with, I setup an event handler for the input-image . Then when the user clicks the image , they get a little popup to add some notes to t...
UILabel - auto-size label to fit text?
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Please check out my gist where I have made a category for UILabel for something very similar, my category lets a UILabel stretch it's height to show all the content: https://gist.github.com/1005520
Or check out this post: https://stac...