stack in python
class stack():
def __init__(self):
self.l=[]
def push(self,val):
self.l.append(val)
def pop(self):
self.l.pop()
def peak(self):
for i in range(len(self.l)):
return self.l[-1]
def emty(self):
for i in range(len(self.l)):
return len(self.l)==0
def display(self):
print(self.l)
s=stack()
s.push(10)
s.push(20)
s.push(40)
s.push(100)
s.display()
s.pop()
s.display()
print(s.emty())
s.display()
print(s.peak())
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