[Python/백준] #10866- [덱]

[덱]-10866번

10866번: 덱

My answer

import sys
n=int(sys.stdin.readline())
tmp=[]

for _ in range(n):
    deck=[]
    deck=sys.stdin.readline().split()
    if(deck[0]=="push_front"):
        tmp=[int(deck[1])]+tmp
    elif(deck[0]=="push_back"):
        tmp.append(int(deck[1]))
    elif(deck[0]=="front"):
        if(tmp==[]):print(-1)
        else:print(tmp[0])
    elif(deck[0]=="back"):
        if(tmp==[]):print(-1)
        else:print(tmp[-1])
    elif(deck[0]=="size"):
        print(len(tmp))
    elif(deck[0]=="pop_front"):
        if(tmp==[]):print(-1)
        else:
            print(tmp[0])
            tmp=tmp[1:]
    elif(deck[0]=="pop_back"):
        if(tmp==[]):print(-1)
        else:
            print(tmp[-1])
            tmp=tmp[:-1]
    elif(deck[0]=="empty"):
        if(tmp):print(0)
        else:print(1)

 

Another answer

n,*l=open(0);a,p=[],print
for i in l:
 if"h_f"in(q:=(j:=i.split())[0]):a=[j[1]]+a
 elif"h_b"in q:a+=[j[1]]
 elif"p_f"in q:p(a.pop(0)if a else-1)
 elif"p_b"in q:p(a.pop()if a else-1)
 elif"i"in q:p(len(a))
 elif"m"in q:p(+(len(a)<1))
 elif"r"in q:p(a[0]if a else-1)
 else:p(a[len(a)-1]if a else-1)

저번에 푼 stack,que문제코드로 돌려쓰기 하고있당