From 047b00946c9edaaf20b30ae9b1b9b6486e7ad412 Mon Sep 17 00:00:00 2001
From: Oleksiy Rozehan <rozeganalexey@gmail.com>
Date: Thu, 14 Sep 2023 12:09:26 +0300
Subject: [PATCH 1/2] Solution

---
 app/main.py | 36 +++++++++++++++++++++++++++++++++++-
 1 file changed, 35 insertions(+), 1 deletion(-)

diff --git a/app/main.py b/app/main.py
index fa56336e..69329221 100644
--- a/app/main.py
+++ b/app/main.py
@@ -1 +1,35 @@
-# write your code here
+class Animal:
+    alive = []
+
+    def __init__(
+            self,
+            name: str,
+            health: int | None = 100,
+            hidden: bool | None = False
+    ) -> None:
+        self.name = name
+        self.health = health
+        self.hidden = hidden
+
+        Animal.alive.append(self)
+
+    def __repr__(self) -> str:
+        return (
+            f"{{Name: {self.name}, "
+            f"Health: {self.health}, "
+            f"Hidden: {self.hidden}}}"
+        )
+
+
+class Herbivore(Animal):
+    def hide(self) -> None:
+        self.hidden = not self.hidden
+
+
+class Carnivore(Animal):
+    @staticmethod
+    def bite(beast: Herbivore) -> None:
+        if not beast.hidden and isinstance(beast, Herbivore):
+            beast.health = beast.health - 50
+            if beast.health <= 0:
+                Animal.alive.remove(beast)

From 956287b83cfb1c873c634a1ea03defec49d915d2 Mon Sep 17 00:00:00 2001
From: Oleksiy Rozehan <rozeganalexey@gmail.com>
Date: Thu, 14 Sep 2023 13:24:50 +0300
Subject: [PATCH 2/2] Solution with correct type annotation

---
 app/main.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/main.py b/app/main.py
index 69329221..e7ccaa8e 100644
--- a/app/main.py
+++ b/app/main.py
@@ -4,8 +4,8 @@ class Animal:
     def __init__(
             self,
             name: str,
-            health: int | None = 100,
-            hidden: bool | None = False
+            health: int = 100,
+            hidden: bool = False
     ) -> None:
         self.name = name
         self.health = health