Range expansion: Difference between revisions
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return lst |
return lst |
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print(rangeexpand('-6,-3-1,3-5,7-11,14,15,17-20'))</ |
print(rangeexpand('-6,-3-1,3-5,7-11,14,15,17-20'))</lang> |
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'''Sample output''' |
'''Sample output''' |
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Revision as of 05:28, 16 July 2010
You are encouraged to solve this task according to the task description, using any language you may know.
Expand the range of integers -6,-3-1,3-5,7-11,14,15,17-20 which is in the format described in Range extraction to a list of integers.
Python
<lang python>def rangeexpand(txt):
lst = []
for r in txt.split(','):
if '-' in r[1:]:
r0, r1 = r[1:].split('-', 1)
lst += range(int(r[0] + r0), int(r1) + 1)
else:
lst.append(int(r))
return lst
print(rangeexpand('-6,-3-1,3-5,7-11,14,15,17-20'))</lang>
Sample output
[-6, -3, -2, -1, 0, 1, 3, 4, 5, 7, 8, 9, 10, 11, 14, 15, 17, 18, 19, 20]