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Select N random elements from a List in C#
...he probability of selection = (number needed)/(number left)
So if you had 40 items, the first would have a 5/40 chance of being selected. If it is, the next has a 4/39 chance, otherwise it has a 5/39 chance. By the time you get to the end you will have your 5 items, and often you'll have all of the...
How to determine the content size of a UIWebView?
... NSLog(@"size: %f, %f", fittingSize.width, fittingSize.height);
}
Swift 4.x
func webViewDidFinishLoad(_ webView: UIWebView) {
var frame = webView.frame
frame.size.height = 1
webView.frame = frame
let fittingSize = webView.sizeThatFits(CGSize.init(width: 0, height: 0))
frame.s...
Why are two different concepts both called “heap”?
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Donald Knuth says (The Art of Computer Programming, Third Ed., Vol. 1, p. 435):
Several authors began about 1975 to call the pool of available memory a "heap."
He doesn't say which authors and doesn't give references to any specific papers, but does say that the use of the term "heap" in rela...
Error : The service is invalid
...
143
Xcode and the GDB connection is quite temperamental. The device and your Mac can become unsynch...
Count number of objects in list [closed]
... edited Dec 2 '19 at 8:10
zx8754
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answered Nov 16 '09 at 7:08
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Execute ssh with password authentication via windows command prompt
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Greg InozemtsevGreg Inozemtsev
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2024年5月11日签到记录贴 - 签到区 - 清泛IT社区，为创新赋能！
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How do I list the functions defined in my shell?
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edited Apr 9 '18 at 19:49
Nick T
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answered D...