mirror of
https://github.com/autistic-symposium/master-algorithms-py.git
synced 2025-04-30 12:46:11 -04:00
35 lines
605 B
Python
Executable File
35 lines
605 B
Python
Executable File
#!/usr/bin/env python
|
|
|
|
__author__ = "bt3"
|
|
|
|
|
|
from collections import Counter
|
|
|
|
def str_comp(s):
|
|
'''
|
|
>>> s1 = 'aabcccccaaa'
|
|
>>> str_comp(s1)
|
|
'a2b1c5a3'
|
|
>>> str_comp('')
|
|
''
|
|
'''
|
|
|
|
count, last = 1, ''
|
|
list_aux = []
|
|
for i, c in enumerate(s):
|
|
if last == c:
|
|
count += 1
|
|
else:
|
|
if i != 0:
|
|
list_aux.append(str(count))
|
|
list_aux.append(c)
|
|
count = 1
|
|
last = c
|
|
list_aux.append(str(count))
|
|
return ''.join(list_aux)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
import doctest
|
|
doctest.testmod()
|