[BaekJoon] 10845 : 큐 (Python)

1일 1문제! 98일차!

오늘의 문제는 백준의 큐 입니다.

10845번: 큐

Solution

my_queue = []
command_list = []

num = input()

for i in range(int(num)):
    command = input()
    command_list.append(command)
    
for command in command_list:
    cmd = command.split()
    
    if cmd[0] == 'push':
        my_queue.append(cmd[1])
    elif cmd[0] == 'pop':
        if len(my_queue) != 0:
            print(my_queue.pop(0))
        else:
            print(-1)
    elif cmd[0] == 'back':
        if len(my_queue) != 0:
            print(my_queue[-1])
        else:
            print(-1)
    elif cmd[0] == 'front':
        if len(my_queue) != 0:
            print(my_queue[0])
        else:
            print(-1)
    elif cmd[0] == 'size':
        print(len(my_queue))
    elif cmd[0] == 'empty':
        if len(my_queue) != 0:
            print(0)
        else:
            print(1)

SOMJANG/CODINGTEST_PRACTICE