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How to sort a list of strings numerically?
...t do anything with the results. What you want is:
list1 = ["1","10","3","22","23","4","2","200"]
list1 = [int(x) for x in list1]
list1.sort()
If for some reason you need to keep strings instead of ints (usually a bad idea, but maybe you need to preserve leading zeros or something), you can use a...
Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
... O(N), but since the numbers grow at an exponential rate it is actually O(N2) due to the complexity of multiplying the large numbers. Below is a Python implementation. It takes about 0.5 seconds to calculate for N=50,000.
def max_chars(n):
dp = [0] * (n+1)
for i in xrange(n):
dp[i+1] = max(...
Should all Python classes extend object?
...
In Python 2, not inheriting from object will create an old-style class, which, amongst other effects, causes type to give different results:
>>> class Foo: pass
...
>>> type(Foo())
<type 'instance'>
vs.
>...
Can grep show only words that match search pattern?
...
Dan MidwoodDan Midwood
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10
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CMFCTabCtrl的使用、颜色样式调整 - C/C++ - 清泛网 - 专注C/C++及内核技术
...l，并给其添加4个CEdit:
CRect rectTab;
CEdit m_wnd1;
CEdit m_wnd2;
CEdit m_wnd3;
CEdit m_wnd4;
CMFCTabCtrl m_wndTab;
m_wndTabLoc.GetWindowRect (&rectTab);
ScreenToClient (&rectTab);
m_wndTab.Create (CMFCTabCtrl::STYLE_3D, rectTab, this, 1,
CMFCTabCtrl::LOCATION_TOP);
...
Unique (non-repeating) random numbers in O(1)?
...
22 Answers
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How do I base64 encode (decode) in C?
..., 'u', 'v',
'w', 'x', 'y', 'z', '0', '1', '2', '3',
'4', '5', '6', '7', '8', '9', '+', '/'};
static char *decoding_table = NULL;
static int mod_table[] = {0, 2, 1};
char *base64_encode(const unsigned char *data,
si...
Convert tuple to list and back
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298
Convert tuple to list:
>>> t = ('my', 'name', 'is', 'mr', 'tuple')
>>> t
('...
Find an element in a list of tuples
...
240
If you just want the first number to match you can do it like this:
[item for item in a if it...
How do I get bash completion to work with aliases?
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12 Answers
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