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- #basic stack in Python, from InteractivePython
- class Stack:
- def __init__(self):
- self.items = []
- def isEmpty(self):
- return self.items == []
- def push(self, item):
- self.items.append(item)
- def pop(self):
- return self.items.pop()
- def peek(self):
- return self.items[len(self.items)-1]
- def size(self):
- return len(self.items)
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