for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
def letter_queue(commands):
queue = []
for i in commands:
temp = i.split()
if temp[0].strip() == 'PUSH':
queue.append(temp[1].strip())
elif temp[0].strip() == 'POP':
queue = queue[1:]
return ''.join(queue)
if __name__ == '__main__':
# These "asserts" using only for self-checking and not necessary for
# auto-testing
assert (
letter_queue(
["PUSH A", "POP", "POP", "PUSH Z", "PUSH D", "PUSH O", "POP", "PUSH T"]
)
== "DOT"
), "dot example"
assert letter_queue(["POP", "POP"]) == "", "Pop, Pop, empty"
assert letter_queue(["PUSH H", "PUSH I"]) == "HI", "Hi!"
assert letter_queue([]) == "", "Nothing"
KenMercusLai /
checkio
