Lesson 011

main.py

@@ -0,0 +1,90 @@
+def calculator(n1, n2, oper):
+    if oper == "+":
+        return n1 + n2
+    if oper == "-":
+        return n1 - n2
+    if oper == "*":
+        return n1 * n2
+    if oper == "/":
+        if n2 == 0:
+            print("Ошибка, деление на 0 невозможна")
+            return 0
+        return n1 / n2
+
+
+def reverse(text):
+    return ''.join(i for i in text[::-1])
+
+
+names = list()
+def robot_hello(name):
+    global names
+    if names.count(name) > 0:
+        return f"Привет, {name}!"
+    names.append(name)
+    return f"Привет, {name}! Рад знакомству!"
+
+
+def while_counter():
+    i = 0
+    while i <= 10:
+        print(i, end=" ")
+        i += 1
+
+
+def rec_counter(num):
+    print(num, end=" ")
+    if num == 10:
+        return num
+    result = rec_counter(num + 1)
+    return result
+
+
+def while_fib():
+    nums = [0, 1]
+    while True:
+        new_num = nums[-1] + nums[-2]
+        if new_num > 100:
+            break
+        nums.append(new_num)
+    return nums
+
+
+def rec_fib(num, fib_nums):
+    if len(fib_nums) < 2:
+        return
+    if num >= 100:
+        return fib_nums
+    num = fib_nums[-1] + fib_nums[-2]
+    fib_nums.append(num)
+    num = rec_fib(num, fib_nums)
+    return fib_nums
+
+
+res = calculator(27, 3, "-")
+print(res)
+
+res = reverse("Abrikoses")
+print(res)
+
+res = robot_hello("Ivan")
+print(res)
+
+res = robot_hello("Petya")
+print(res)
+
+res = robot_hello("Anna")
+print(res)
+
+res = robot_hello("Ivan")
+print(res)
+
+res = robot_hello("Anna")
+print(res)
+
+while_counter()
+
+num = 0
+rec_counter(num)
+
+res = rec_fib([0, 1])