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Add typing to data_structures/queue/queue_on_pseudo_stack.py (#7037)

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* Add typing

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This commit is contained in:
Saksham Chawla 2022-10-12 22:14:08 +05:30 committed by GitHub
parent aeb933bff5
commit e272b9d6a4
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1 changed files with 6 additions and 5 deletions
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11
data_structures/queue/queue_on_pseudo_stack.py
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@ -1,4 +1,5 @@
"""Queue represented by a pseudo stack (represented by a list with pop and append)"""
from typing import Any
class Queue:
@ -14,7 +15,7 @@ class Queue:
@param item
item to enqueue"""
def put(self, item):
def put(self, item: Any) -> None:
self.stack.append(item)
self.length = self.length + 1
@ -23,7 +24,7 @@ class Queue:
@return dequeued
item that was dequeued"""
def get(self):
def get(self) -> Any:
self.rotate(1)
dequeued = self.stack[self.length - 1]
self.stack = self.stack[:-1]
@ -35,7 +36,7 @@ class Queue:
@param rotation
number of times to rotate queue"""
def rotate(self, rotation):
def rotate(self, rotation: int) -> None:
for i in range(rotation):
temp = self.stack[0]
self.stack = self.stack[1:]
@ -45,7 +46,7 @@ class Queue:
"""Reports item at the front of self
@return item at front of self.stack"""
def front(self):
def front(self) -> Any:
front = self.get()
self.put(front)
self.rotate(self.length - 1)
@ -53,5 +54,5 @@ class Queue:
"""Returns the length of this.stack"""
def size(self):
def size(self) -> int:
return self.length