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Second solution in Clear category for Long Repeat by lyq3413
from itertools import groupby
def long_repeat(line):
"""
length the longest substring that consists of the same char
"""
return max([len(tuple(g)) for _,g in groupby(line)], default=0)
if __name__ == '__main__':
#These "asserts" using only for self-checking and not necessary for auto-testing
assert long_repeat('sdsffffse') == 4, "First"
assert long_repeat('ddddvvrwwwrggg') == 4, "Second"
assert long_repeat('aa') == 2, "Third"
assert long_repeat('') == 0, "Empty"
print('"Run" is good. How is "Check"?')
Feb. 20, 2019