We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
  1. Prepare
  2. Python
  3. Collections
  4. Collections.deque()
  5. Discussions

Collections.deque()

Sort by

recency

|

659 Discussions

|

  • dheenupriya2001
     + 0 comments
    from collections import deque

d = deque()
n = int(input())
for _ in range(n):
    string = input().split(' ')
    if string[0] == "append":
        d.append(string[1])
    elif string[0] == "appendleft":
        d.appendleft(string[1])
    elif string[0] == "pop":
        d.pop()
    else:
        d.popleft()
print(*d, end=" ")

  • 191FA07033
     + 0 comments
    from collections import deque
n=int(input())
d=deque()
for _ in range(n):
    y=input().split()
    if(y[0]=="append"):
        d.append(y[1])
    elif(y[0]=="appendleft"):
        d.appendleft(y[1])
    elif(y[0]=="pop"):
        d.pop()
    elif(y[0]=="popleft"):
        d.popleft()
print(*d,end=" ")

  • PortalPirate
     + 0 comments
    from collections import deque
d=deque()
for _ in range(int(input())):
    n=input().split()
    if n[0]=="append":
        d.append(int(n[-1]))
    elif n[0]=="appendleft":
        d.appendleft(int(n[-1]))
    elif n[0]=="pop":
        d.pop()
    elif n[0]=="popleft":
        d.popleft()
print(" ".join(map(str, list(d))))

  • rohitambasta_ii1
     + 0 comments
    from collections import deque
d= deque()
N = int(input())

for inp in range(N):
    operation = input().split()
    if len(operation) == 1:
        getattr(d, operation[0])()
    else:
        getattr(d, operation[0])(operation[1])

print(" ".join(d))

  • dilajevolves
     + 0 comments
    # Enter your code here. Read input from STDIN. Print output to STDOUT
from collections import deque
d = deque()
for _ in range(int(input())):
    function = input().split()
    match function[0]:
        case "append":
            d.append(int(function[1]))
        case "pop":
            d.pop()
        case "popleft":
            d.popleft()
        case "appendleft":
            d.appendleft(int(function[1]))
print (" ".join(map(str,d)))