大约有 46,000 项符合查询结果(耗时:0.0292秒) [XML]

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Set every cell in matrix to 0 if that row or column contains a 0

Given a NxN matrix with 0s and 1s. Set every row that contains a 0 to all 0 s and set every column that contains a 0 to all 0 s. ...
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How to make an OpenGL rendering context with transparent background?

...ndows XP (32-bits) and Windows 8.1 (32-bits). Enjoy! #define _WIN32_WINNT 0x0500 #include <windows.h> #include <windowsx.h> #include <GL/gl.h> #include <GL/glu.h> #pragma comment (lib, "opengl32.lib") #pragma comment (lib, "glu32.lib") #include <assert.h> #include &...
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Why does ('0' ? 'a' : 'b') behave different than ('0' == true ? 'a' : 'b') [duplicate]

... 208 +500 First, ...
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How do I create an average from a Ruby array?

... 20 Answers 20 Active ...
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Reduce, fold or scan (Left/Right)?

...first* operator arg `res` // op: -4 - 4 = -8 // res: Int = -8 xs.foldLeft(0)(minus) // op: 0 - 1 = -1 // op: -1 - 2 = -3 // op: -3 - 3 = -6 // op: -6 - 4 = -10 // res: Int = -10 xs.scanLeft(0)(minus) // op: 0 - 1 = -1 // op: -1 - 2 = -3 // op: -3 - 3 = -6 // op: -6 - 4 = -10 // res: List[Int] = Li...
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Creating a CSS3 box-shadow on all sides but one

...paddings) and add shadow #content { font-size: 1.8em; box-shadow: 0 0 8px 2px #888; /* line shadow */ } add shadows to tabs: #nav li a { margin-left: 20px; padding: .7em .5em .5em .5em; font-size: 1.3em; color: #FFF; display: inline-block; text-transform: uppercas...
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Python and pip, list all versions of a package that's available?

... 170 (update: As of March 2020, many people have reported that yolk, installed via pip install yolk3k...
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Center a map in d3 given a geoJSON object

... +300 The following seems to do approximately what you want. The scaling seems to be ok. When applying it to my map there is a small offset...
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Regular expression for matching HH:MM time format

... Your original regular expression has flaws: it wouldn't match 04:00 for example. This may work better: ^([0-1]?[0-9]|2[0-3]):[0-5][0-9]$ share | improve this answer | ...
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Sorting arrays in NumPy by column

... copy: In [1]: import numpy as np In [2]: a = np.array([[1,2,3],[4,5,6],[0,0,1]]) In [3]: np.sort(a.view('i8,i8,i8'), order=['f1'], axis=0).view(np.int) Out[3]: array([[0, 0, 1], [1, 2, 3], [4, 5, 6]]) To sort it in-place: In [6]: a.view('i8,i8,i8').sort(order=['f1'], axis=0) #&...