18258

백준 18258번 Python

import sys from collections import deque n = int(sys.stdin.readline().rstrip()) queue =deque([]) for i in range(n): ans = sys.stdin.readline().rstrip().split() if ans[0]=='push': queue.append(ans[1]) if ans[0]=='pop': if len(queue): print(queue.popleft()) else: print(-1) if ans[0]=='size': print(len(queue)) if ans[0]=='empty': if len(queue): print(0) else: print(1) if ans[0]=='front': if len(que..