syntax error
I would like to give some feedback about syntax error, that should not appear in line (if "POP" in i:)
def letter_queue(commands):
r = [] for i in commands: if "PUSH" in i: r.append(i.replace("PUSH ","") if "POP" in i: if len(r)>0: r.pop(0) return "".join(r)
From: http://www.checkio.org/mission/letter-queue/solve/
HTTP_USER_AGENT:
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36