Rename Stack.py to stack.py

stacks/stack.py

@@ -0,0 +1,79 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# author: bt3gl
+
+
+class Stack:
+
+    def __init__(self):
+        self.content = []
+        self.min_array = []
+        self.min = float('inf')
+
+    ######################
+    #   Private methods
+    ######################
+    def __repr__(self):
+        return f'{self.content}'
+
+    ######################
+    #  Properties
+    ######################
+    @property
+    def size(self):
+        return len(self.content)
+    
+    @property
+    def peek(self):
+        if self.content:
+            return self.content[-1]
+        else:
+            print('❌ Queue is empty, cannot peek.')
+    
+    @property
+    def is_empty(self):
+        return not bool(self.content)
+
+    ######################
+    #   Public methods
+    ######################
+    def push(self, value):
+        if value < self.min:
+            self.min = value
+
+        self.content.append(value)
+        self.min_array.append(self.min)
+    
+    def pop(self):
+        if self.content:
+            value = self.content.pop()
+            self.min_array.pop()
+            if self.min_array:
+                self.min = self.min_array[-1]
+            return value
+    
+    def find_min(self):
+        if self.min_array:
+            return self.min_array[-1]
+
+
+if __name__ == '__main__':
+
+    ######################
+    #   Simple Stack
+    ######################
+    print('Testing Stack...')
+    stack = Stack()
+    for i in range(12, 21):
+        stack.push(i)
+    
+    print(f'\nStack: {stack}')
+    print(f'Stack size: {stack.size}')
+    print(f'Stack peek: {stack.peek}')
+    print(f'Stack is empty: {stack.is_empty}')
+    print(f'Stack min: {stack.find_min()}')
+    
+    print('\nPopping...')
+    for i in range(5):
+        print(stack.pop())
+    print(f'Stack: {stack}')