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How to convert Array in C++ to Python? [closed]

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How can I convert this C++ code

for(int i=0; i<3; ++i){
   array[i][0]=i*4+0;
   array[i][1]=i*4+1;
   array[i][2]=i*4+2;
   array[i][3]=i*4+3;}

to Python ?


When your IDE says xrange is an undefined function,please look at @ThiefMaste'comments :

Just because your IDE says something is not defined, it doesn't mean it's not defined. However, if you are using Python3 it is not defined since it was renamed to range (and the original, non-iterator range was removed)


How about this:

In [3]: [[i*4+j for j in xrange(4)] for i in xrange(3)]
Out[3]: [[0, 1, 2, 3], [4, 5, 6, 7], [8, 9, 10, 11]]


array = []
for i in range(3):
    list.append([i*4, i*4+1, i*4+2, i*4+3])

or to be more exact (in case the list is not empty before):

for i in range(3):
    list[i] = [i*4, i*4+1, i*4+2, i*4+3]

and a more pythonic approach to generate the 4 elements would be:

[i*4+n for n in range(4)]
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