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Time complexity of Sieve of Eratosthenes algorithm

...cause we need an array of n elements in any case? – a_123 Mar 25 '16 at 21:35 ...
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Creating a blurring overlay view

...ize.height); reOrient = CGAffineTransformRotate(reOrient, M_PI); break; case UIImageOrientationLeft: case UIImageOrientationLeftMirrored: reOrient = CGAffineTransformTranslate(reOrient, theImage.size.width, 0); r...
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Read logcat programmatically within application

...7. */ public class Logger { // http://www.java2s.com/Tutorial/Java/0040__Data-Type/SimpleDateFormat.htm private static final String ANDROID_LOG_TIME_FORMAT = "MM-dd kk:mm:ss.SSS"; private static SimpleDateFormat logCatDate = new SimpleDateFormat(ANDROID_LOG_TIME_FORMAT); public static Str...
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Best way to obfuscate an e-mail address on a website?

...g. in PHP: <a href="javascript:window.location.href=atob('<?= base64_encode("mailto:email@example.com") ?>')">E-Mail</a> In combination with string reversion it could be pretty spam-save: <a href="javascript:window.location.href=atob('<?= base64_encode("mailto:email@examp...
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Counter increment in Bash loop not working

...COUNTER=$((COUNTER + 1)) it worked. GNU bash, version 4.1.2(1)-release (x86_64-redhat-linux-gnu) – Steven Lu Nov 29 '13 at 1:13 ...
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When should I use perror(“…”) and fprintf(stderr, “…”)?

...should use fprintf(stderr, fmt, ...). For example, strtol will return LONG_MAX or LONG_MIN if a string is out of range and set errno to ERANGE. So if strtol fails due to out of range, I would use perror. – freeboy1015 Aug 24 '12 at 2:22 ...
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How to bind a List to a ComboBox?

... public IList<City> Cities { get; set; } public Country(string _name) { Cities = new List<City>(); Name = _name; } } List<Country> countries = new List<Country> { new Country("UK"), new Country("Australia...
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How do I get a TextBox to only accept numeric input in WPF?

...nly want to allow numbers, dots and dashes. private static readonly Regex _regex = new Regex("[^0-9.-]+"); //regex that matches disallowed text private static bool IsTextAllowed(string text) { return !_regex.IsMatch(text); } If you want to prevent pasting of incorrect data hook up the DataObj...
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How to repair a serialized string which has been corrupted by an incorrect byte count length?

...serialized array You current serialized data $data = 'a:10:{s:16:"submit_editorial";b:0;s:15:"submit_orig_url";s:13:"www.bbc.co.uk";s:12:"submit_title";s:14:"No title found";s:14:"submit_content";s:12:"dnfsdkfjdfdf";s:15:"submit_category";i:2;s:11:"submit_tags";s:3:"bbc";s:9:"submit_id";b:0;s:16:...
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python's re: return True if string contains regex pattern

...ch 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 1 ...