/

task1.py

@@ -0,0 +1,19 @@
+def my(self, attr):
+    try:
+        return object.__getattr__(self, attr)
+    except AttributeError:
+        return 0
+
+
+def implicit_int(cls):
+    cls.__getattr__ = my
+    return cls
+
+
+@implicit_int
+class A:
+    pass
+
+
+a = A()
+print(a.e)

task2.py

@@ -0,0 +1,17 @@
+import time
+
+
+class Timer:
+    time = __import__("time")
+    def __enter__(self):
+        self.st = time.time()
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        if exc_type is None:
+            print(time.time() - self.st)
+        return False
+import random
+with Timer():
+    a = 0
+    for i in range(1000000):
+        a += random.randint(0, 1000)
+    print(a)