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First solution in Clear category for Double Substring by fed.kz
def double_substring(text):
max_len=0
while text!='':
for num in range(1,len(text)):
if text.count(text[:num])>1:
max_len=len(text[:num]) if len(text[:num])>max_len else max_len
text=text[1:]
return max_len
Oct. 1, 2018
