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app/main.py

@@ -1 +1,43 @@
-# write your code here
+class Animal:
+    alive = []
+
+    def __init__(
+            self,
+            name: str,
+            health: int = 100,
+            hidden: bool = False
+    ) -> None:
+        self.name = name
+        self.health = health
+        self.hidden = hidden
+        Animal.alive.append(self)
+
+    @classmethod
+    def cleanup_dead_animals(cls) -> None:
+        cls.alive = [animal for animal in cls.alive if animal.health > 0]
+
+    def hide(self) -> None:
+        self.hidden = not self.hidden
+
+    def __str__(self) -> str:
+        return f"{{Name: {self.name}, Health: {self.health}, Hidden: {self.hidden}}}"
+
+    def __repr__(self) -> str:
+        return str(self)
+
+
+class Herbivore(Animal):
+
+    def hide(self) -> None:
+        super().hide()
+
+
+class Carnivore(Animal):
+
+    def bite(self, herbivore: Herbivore) -> None:
+        if isinstance(herbivore, Herbivore) and not herbivore.hidden:
+            herbivore.health -= 50
+            if herbivore.health <= 0:
+                herbivore.hidden = True
+                if herbivore in Animal.alive:
+                    Animal.alive.remove(herbivore)