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Sorting a vector of custom objects
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Sorting such a vector or any other applicable (mutable input iterator) range of custom objects of type X can be achieved using various methods, especially including the use of standard library algorithms like
sort,
stable_sort,
partial_sort or
partial_sort_copy.
Since most of the techniqu...
Good ways to manage a changelog using git?
...I think you can automate the generation of a changelog but please don't do raw copy of git log !
– vaab
Mar 11 '15 at 3:44
20
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Convert light frequency to RGB?
...he important point that some colours are not representable in RGB (bright oranges being a good example) because you cannot "make" arbitrary colours of light by adding three primary colours together, whatever our physics teachers may have told us (well mine did). Too bad, but in practice not usually ...
How to sort the letters in a string alphabetically in Python
...thon
k = input("Enter any string again ")
li = []
x = len(k)
for i in range (0,x):
li.append(k[i])
print("List is : ",li)
for i in range(0,x):
for j in range(0,x):
if li[i]<li[j]:
temp = li[i]
li[i]=li[j]
li[j]=temp
j=""
for i in range(...
vertical & horizontal lines in matplotlib
...alling, axhline() and axvline() draw lines that span a portion of the axis range, regardless of coordinates. The parameters xmin or ymin use value 0.0 as the minimum of the axis and 1.0 as the maximum of the axis.
Instead, use plt.plot((x1, x2), (y1, y2), 'k-') to draw a line from the point (x1, y1...
How can I convert an RGB image into grayscale in Python?
... seconds
sk : 2.120 seconds
PIL and SciPy gave identical numpy arrays (ranging from 0 to 255). SkImage gives arrays from 0 to 1. In addition the colors are converted slightly different, see the example from the CUB-200 dataset.
SkImage:
PIL :
SciPy :
Original:
Diff :
Code
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Removing numbers from string [closed]
...ns-
'aaasdffgh'
Much more efficient than looping...
Example:
for i in range(10):
a.replace(str(i),'')
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What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?
... to the difference between the two sets, the C++ standard mandates minimum ranges for each, and that long long is at least as wide as long.
The controlling parts of the standard (C++11, but this has been around for a long time) are, for one, 3.9.1 Fundamental types, section 2 (a later section gives...
Iterate an iterator by chunks (of n) in Python? [duplicate]
...s handle the last chunk as desired is
[my_list[i:i + chunk_size] for i in range(0, len(my_list), chunk_size)]
Finally, a solution that works on general iterators an behaves as desired is
def grouper(n, iterable):
it = iter(iterable)
while True:
chunk = tuple(itertools.islice(it, n...
Proper stack and heap usage in C++?
...elf with deleting a heap based object in an exception handler. This is why raw pointers are not normally used in modern C++, you would use a smart pointer which can be a stack based wrapper for a raw pointer to a heap based object.
...