22 lines
662 B
Python
22 lines
662 B
Python
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def double_substring(line):
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"""
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length of the longest substring that non-overlapping repeats more than once.
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"""
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result = []
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for i in range(len(line) - 1):
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for j in range(i + 1, len(line) + 1):
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if line[i:j] in line[j:]:
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result.append(len(line[i:j]))
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if len(result) > 0:
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return max(result)
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else:
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return 0
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if __name__ == '__main__':
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# These "asserts" using only for self-checking and not necessary for auto-testing
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assert double_substring('aaaa') == 2, "First"
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assert double_substring('abc') == 0, "Second"
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assert double_substring('aghtfghkofgh') == 3, "Third"
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