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First solution in Clear category for Letter Queue by mikaeldovbnia
def letter_queue(c):
s = []
for i in c:
if 'PUSH' in i:
s.append(i[5:])
else:
if len(s) == 0:
continue
elif len(s) != 0:
s.remove(s[0])
return ''.join(s)
if __name__ == '__main__':
print("Example:")
print(letter_queue(['PUSH A',
'POP',
'POP',
'PUSH Z',
'PUSH D',
'PUSH O',
'POP',
'PUSH T']))
# These "asserts" are used for self-checking and not for an auto-testing
assert letter_queue(['PUSH A',
'POP',
'POP',
'PUSH Z',
'PUSH D',
'PUSH O',
'POP',
'PUSH T']) == 'DOT'
assert letter_queue(['POP', 'POP']) == ''
assert letter_queue(['PUSH H', 'PUSH I']) == 'HI'
assert letter_queue([]) == ''
print("Coding complete? Click 'Check' to earn cool rewards!")
Aug. 6, 2022
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