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recursive solution in Creative category for Backward String by ensan71714
def backward_string(val: str) -> str:
if len(val) == 0:
return ''
return val[-1:] + backward_string(val[:-1])
if __name__ == '__main__':
print("Example:")
print(backward_string('val'))
# These "asserts" are used for self-checking and not for an auto-testing
assert backward_string('val') == 'lav'
assert backward_string('') == ''
assert backward_string('ohho') == 'ohho'
assert backward_string('123456789') == '987654321'
print("Coding complete? Click 'Check' to earn cool rewards!")
July 20, 2021