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O(nlogn) Algorithm - Find three evenly spaced ones within binary string
...e, we have the list L = [1, 2, 4, 5, 8]. This step is O(n). The problem is now to find an arithmetic progression of length 3 in L, i.e. to find distinct a, b, c in L such that b-a = c-b, or equivalently a+c=2b. For the example above, we want to find the progression (2, 5, 8).
Make a polynomial p wit...
Add swipe to delete UITableViewCell
...TableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
if (editingStyle == UITableViewCellEditingStyle.Delete) {
// handle delete (by removing the data from your array and updating the tableview)
}
}
Swift 3.0:
override func tableView(_ tableView: UITableView, canE...
ios app maximum memory budget
...want to limit them with a budget. I guess we'll just have to test on many different devices in different settings to find a reasonable maximum memory footprint to use.
– frilla
May 5 '11 at 0:42
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python's re: return True if string contains regex pattern
...similar case where I want to search for an exact string (xyz) and want to know which is a more efficient way to do this, should I use python's 'xyz' in given_text or use re.compile(r'xyz').search(given_text) ?
– bawejakunal
May 4 '16 at 9:01
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Intersection of two lists in Bash
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Can't believe I had no knowledge of comm until today. This just made my whole week :)
– Darragh Enright
Aug 19 '14 at 17:49
23
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How to make an anchor tag refer to nothing?
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@eugene this question is 3 years old now, but IE used to make images disappear when surrounded by a link to a void function. Not sure when it was fixed, but it works in IE10, which is all I have installed. I personally now use <a href="javascript:;">
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Random color generator
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@Mohsen, FYI every now and then your code produces invalid 5 digit number
– rochal
Nov 5 '11 at 18:05
6
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CSS3 Rotate Animation
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2017: This is now very well supported and a preferred way to do non-infinite rotations. -webkit- prefix is no longer needed and can be safely removed. Browser support: caniuse.com/#search=transforms
– Alph.Dev
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How to disable back swipe gesture in UINavigationController on iOS 7
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I found a solution:
Objective-C:
if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
self.navigationController.interactivePopGestureRecognizer.enabled = NO;
}
Swift 3+:
self.navigationController?.interactive...
How do I disable “missing docstring” warnings at a file-level in Pylint?
... at the beginning of it. Can i disable this somehow? I would like to be notified of a docstring is missing inside a class, function or method but it shouldn't be mandatory for a file to have a docstring.
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