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  1. import numpy
  2. f=lambda M:map(M[::-1].diagonal,range(1-len(M),len(M[0])))
  3.  
  4. for M in [[1]], [[1,2],[3,4]], [[1,2,3],[4,5,6]], [[11,2,5],[3,99,3],[4,8,15],[16,23,42]]:
  5. 	print(list(f(numpy.array(M))))
Success #stdin #stdout 0.21s 27248KB
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stdin
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Standard input is empty
stdout
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[array([1])]
[array([1]), array([3, 2]), array([4])]
[array([1]), array([4, 2]), array([5, 3]), array([6])]
[array([11]), array([3, 2]), array([ 4, 99,  5]), array([16,  8,  3]), array([23, 15]), array([42])]
https://ideone.com/kFQIgU
language:
Python 3 (python  3.9.5)
created:
8 years ago
visibility:
public

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