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First solution in Clear category for Long Non Repeat by keromage
def non_repeat(line):
if line == "":
return ""
else:
seq = [line[i:j] for i in range(len(line)) for j in range(i + 1, len(line) + 1)]
seq2 = [i for i in seq if len(i) == len("".join(set(i)))]
return sorted(seq2, key=len, reverse=True)[0]
if __name__ == '__main__':
#These "asserts" using only for self-checking and not necessary for auto-testing
assert non_repeat('aaaaa') == 'a', "First"
assert non_repeat('abdjwawk') == 'abdjw', "Second"
assert non_repeat('abcabcffab') == 'abcf', "Third"
print('"Run" is good. How is "Check"?')
Sept. 26, 2021