大约有 1,785 项符合查询结果（耗时：0.0306秒） [XML]
What is the copy-and-swap idiom?
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Tony DelroyTony Delroy
91k1010 gold badges149149 silver badges219219 bronze badges
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Getting the closest string match
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91
This problem turns up all the time in bioinformatics. The accepted answer above (which was grea...
Twitter image encoding challenge [closed]
...hree more points I can put in the data). And when using ASCII, it gives me 917.64 bits instead of 840.
I decided against a method for the initial image computation that would have required heavy weaponry (corner detection, feature extraction, colour quantisation...) because I wasn't sure at first i...
Why does Java switch on contiguous ints appear to run faster with added cases?
...00000024f017b: cmp edx,0x1
0x00000000024f017e: jg 0x00000000024f0191
0x00000000024f0180: test edx,edx
0x00000000024f0182: je 0x00000000024f01cb
0x00000000024f0184: mov ebp,edx
0x00000000024f0186: mov edx,0x17
0x00000000024f018b: call 0x00000000024c90a0 ; OopMap{off=...
Usage of __slots__?
...d
>>> min(timeit.repeat(get_set_delete_fn(slotted)))
0.2846834529991611
>>> min(timeit.repeat(get_set_delete_fn(not_slotted)))
0.3664822799983085
The slotted access is almost 30% faster in Python 3.5 on Ubuntu.
>>> 0.3664822799983085 / 0.2846834529991611
1.287332565828434...
JavaScript + Unicode regexes
...5\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0AF9\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0...
Append an object to a list in R in amortized constant time, O(1)?
... mean median uq max neval
env_with_list_ 8712.146 9138.250 10185.533 10257.678 10761.33 12058.264 5
c_ 13407.657 13413.739 13620.976 13605.696 13790.05 13887.738 5
list_ 854.110 913.407 1064.463 914.167 1301.50 1339.132 5
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What's the difference between passing by reference vs. passing by value?
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91
Many answers here (and in particular the most highly upvoted answer) are factually incorrect, s...
When to use volatile with multi threading?
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John DiblingJohn Dibling
91.3k2424 gold badges166166 silver badges296296 bronze badges
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动态追踪（Dynamic Tracing）技术漫谈 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...获取很多在空间上的宝贵信息。这有点儿像蛛蛛在蛛网上搜索猎物。
我们既可以在操作系统内核里面拿一些信息，也可以在用户态程序等较高的层面上采集一些信息。这些信息可以在时间线上面关联起来，构建出一幅完整的...