From 1eb9d66c3a3597216a85a532e1be263824cd2b52 Mon Sep 17 00:00:00 2001
From: "Alexandr K." <alex329657@gmail.com>
Date: Mon, 9 Oct 2023 11:16:01 +0300
Subject: [PATCH 1/3] Solution

---
 app/main.py        | 31 ++++++++++++++++++++++++++++++-
 tests/test_main.py |  2 +-
 2 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/app/main.py b/app/main.py
index fa56336e..d4a6b83f 100644
--- a/app/main.py
+++ b/app/main.py
@@ -1 +1,30 @@
-# write your code here
+class Animal:
+    alive = []
+
+    def __init__(self, name: str, health: int = 100,
+                 hidden: bool = False) -> None:
+        self.health = health
+        self.name = name
+        self.hidden = hidden
+        Animal.alive.append(self)
+
+    def __repr__(self) -> str:
+        return (f"{{Name: {self.name}, Health: {self.health}, "
+                f"Hidden: {self.hidden}}}")
+
+
+class Herbivore(Animal):
+    def hide(self) -> None:
+        self.hidden = not self.hidden
+
+
+class Carnivore(Animal):
+    def bite(self, animal: Animal) -> None:
+        if (animal.hidden or animal not in animal.alive
+                or not isinstance(animal, Herbivore)):
+            return
+        animal.health -= 50
+        if animal.health <= 0:
+            for item in Animal.alive:
+                if item.name == animal.name:
+                    Animal.alive.remove(item)
diff --git a/tests/test_main.py b/tests/test_main.py
index dcdf42cd..78269225 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -15,7 +15,7 @@ def test_animal_class():
 
 
 def test_animal_constructor():
-    lion = Animal("Lion King")
+    lion = Animal("Lion King", )
     assert hasattr(lion, "name"), (
         "Animal instance should have attribute 'name'"
     )

From aa29129538fac5a08214540d4313ff7c4c16c961 Mon Sep 17 00:00:00 2001
From: "Alexandr K." <alex329657@gmail.com>
Date: Mon, 9 Oct 2023 13:10:52 +0300
Subject: [PATCH 2/3] BugFix1

---
 app/main.py | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/app/main.py b/app/main.py
index d4a6b83f..2ce159e9 100644
--- a/app/main.py
+++ b/app/main.py
@@ -25,6 +25,4 @@ def bite(self, animal: Animal) -> None:
             return
         animal.health -= 50
         if animal.health <= 0:
-            for item in Animal.alive:
-                if item.name == animal.name:
-                    Animal.alive.remove(item)
+            Animal.alive.remove(animal)

From 75f7549245eab5edac4aa0d944c0bc15e7ac4845 Mon Sep 17 00:00:00 2001
From: "Alexandr K." <alex329657@gmail.com>
Date: Mon, 9 Oct 2023 13:46:19 +0300
Subject: [PATCH 3/3] BugFix2

---
 app/main.py        | 11 +++++------
 tests/test_main.py |  2 +-
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/app/main.py b/app/main.py
index 2ce159e9..9072e2c6 100644
--- a/app/main.py
+++ b/app/main.py
@@ -20,9 +20,8 @@ def hide(self) -> None:
 
 class Carnivore(Animal):
     def bite(self, animal: Animal) -> None:
-        if (animal.hidden or animal not in animal.alive
-                or not isinstance(animal, Herbivore)):
-            return
-        animal.health -= 50
-        if animal.health <= 0:
-            Animal.alive.remove(animal)
+        if (not animal.hidden and animal in animal.alive
+                and isinstance(animal, Herbivore)):
+            animal.health -= 50
+            if animal.health <= 0:
+                Animal.alive.remove(animal)
diff --git a/tests/test_main.py b/tests/test_main.py
index 78269225..dcdf42cd 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -15,7 +15,7 @@ def test_animal_class():
 
 
 def test_animal_constructor():
-    lion = Animal("Lion King", )
+    lion = Animal("Lion King")
     assert hasattr(lion, "name"), (
         "Animal instance should have attribute 'name'"
     )