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Copy pathstack.py
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59 lines (45 loc) · 1.13 KB
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class Stack:
def __init__(self,size=20):
self.stack= []
self.size= size;
self.top= -1
def setSize(self,size):
self.size=size;
def push(self,element):
if self.isFull():
raise "StackOverflow"
else:
self.stack.append(element)
self.top = self.top + 1
def pop(self):
if self.isEmpty():
raise "StackUnderflow"
else:
element=self.stack[-1]
self.top=self.top-1;
del self.stack[-1]
return element
def Top(self):
return self.top
def empty(self):
self.stack=[]
self.top=-1
def isEmpty(self):
if self.top == -1:
return True
else:
return False
def isFull(self):
if self.top == self.size-1:
return True
else:
return False
if __name__ == "__main__":
stack=Stack()
for i in range(10):
stack.push(i)
print stack.Top()
for i in range(10):
print stack.pop()
stack.empty()
print stack.Top()