Dsa in python

 #Using stack in py and in these push and pop the elements:

size=int(input('Enter size of the elemnts:'))
stack=[]
print('Enter elements in stack:')#inserting
for i in  range(size):
    ele=int(input())
    stack.append(ele)
print('Elements are in stack :')    #display
for element in stack:
    print(element)
rem_v=int(input('Enter the size of elements which are removing:'))
for j in range(rem_v):#pop
    stack.pop()
print(f'Remainig elements in stack is : {stack}')    
         

     #o/p is:

Enter size of the elemnts:4

Enter elements in stack:

1

2

3

4

Elements are in stack :

1

2

3

4

Enter the size of elements which are removing:1

Remainig elements in stack is : [1, 2, 3]

#Dequeue in py:

from collections import deque
size=int(input('Enter size of the elemnts:'))
stack=deque()
print('Enter elements in stack:')
for i in  range(size):
    ele=int(input())
    stack.append(ele)
print('Elements are in stack :')    
for element in stack:
    print(element)
rem_v=int(input('Enter the size of elements which are removing:'))
for j in range(rem_v):
    stack.pop()
print(f'Remainig elements in stack is : {stack}')    
#o/p is:
Enter size of the elemnts:3 Enter elements in stack: 1 2 3 Elements are in stack : 1 2 3 Enter the size of elements which are removing:3 Remainig elements in stack is : deque([])         
#using lifoqueue in py:
from queue import LifoQueue
stack=LifoQueue(maxsize=4)
print(stack.qsize())
si=int(input('Enter size of  elements:'))
print('Enter elements in stack:')
for i in  range(si):
    ele=int(input())
    stack.put(ele)
print(stack.full())
print(stack.qsize())    
rem_v=int(input('Enter the size of elements which are removing:'))
for j in range(rem_v):
    stack.get()
print(f'Remainig elements in stack is : {stack.qsize()}')
print(f'Empty:{stack.empty()}')  
#o/p is:
Enter size of elements:4 Enter elements in stack: 1 2 3 4 True 4 Enter the size of elements which are removing:4 Remainig elements in stack is : 0 Empty:True   
     

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