大约有 1,742 项符合查询结果（耗时：0.0102秒） [XML]
Why does Java's hashCode() in String use 31 as a multiplier?
...
Goodrich and Tamassia computed from over 50,000 English words (formed as the union of the word lists provided in two variants of Unix) that using the constants 31, 33, 37, 39, and 41 will produce fewer than 7 collisions in each case. This may be the reason that so many...
Why should I learn Lisp? [closed]
...ten in lisp. Quoting Wikipedia: In 1998, Yahoo! Inc. bought Viaweb for 455,000 shares of Yahoo! stock, valued at about $49 million, and renamed it Yahoo! Store.
– Steven Lu
Apr 4 '13 at 17:26
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How to increase space between dotted border dots
...add a border to this hr is something like
hr {border-bottom: 1px dotted #000;}
But if you want to take control of the border and, for example increase, the space between dots, you may try something like this:
hr {
height:14px; /* specify a height for this hr */
overflow:hidden;
}
And in the f...
How do you access the matched groups in a JavaScript regular expression?
... environment will see the code working fine under no load despite doing 10,000 needless executions of some chunk of code. Then they'll push it out to a production environment and wonder why their app goes down under load. In my experience it's better if things break in an obvious way, and earlier i...
ng-model for `` (with directive DEMO)
...le data but also file dataurl or base 64.
{
"lastModified": 1438583972000,
"lastModifiedDate": "2015-08-03T06:39:32.000Z",
"name": "gitignore_global.txt",
"size": 236,
"type": "text/plain",
"data": "data:text/plain;base64,DQojaWdub3JlIHRodW1ibmFpbHMgY3JlYXRlZCBieSB3aW5kb3dz...
How is null + true a string?
...ng str = null + true;
it's as bellow:
.locals init ([0] string str)
IL_0000: nop
IL_0001: ldc.i4.1
IL_0002: box [mscorlib]System.Boolean
IL_0007: call string [mscorlib]System.String::Concat(object)
IL_000c: stloc.0
...
How to change max_allowed_packet size
...21
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Combined area of overlapping circles
... You're right, I'm ashamed of myself, but I've got a cluster with 12,000 cores, I can afford to be lavish. And I can't figure out how to make the elegant mathematical solution scale to that many processors.
– High Performance Mark
Nov 3 '09 at 17:46
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“java.lang.OutOfMemoryError : unable to create new native Thread”
...to be able to control what happens in your application. Why do you have 32000 threads active at once?
– Thorbjørn Ravn Andersen
May 28 '13 at 10:44
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Generate an integer that is not among four billion given ones
...the 4 billion existing integers is about 93% (4e9 / 2^32). The odds that 1000 pseudo-random integers will all collide is less than one in 12,000 billion billion billion (odds-of-one-collision ^ 1000). So if a program maintains a data structure containing 1000 pseudo-random candidates and iterates t...