last lab

labPython/lab16/task_1.py

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+class Node:
+    def __init__(self, data, next=None):
+        self.data = data
+        self.next = next
+
+
+def push(top, d):
+    return Node(d, top)
+
+
+def print_stack(top):
+    cur = top
+    while cur:
+        print(cur.data, end=" ")
+        cur = cur.next
+    print()
+
+
+top = None
+
+while True:
+    try:
+        print("\n1 - создать стек")
+        print("2 - добавить элемент")
+        print("3 - показать стек")
+        print("0 - выход")
+        c = input(">> ")
+
+        if c == "1":
+            top = None
+            arr = list(map(int, input("Введите числа: ").split()))
+            for x in arr:
+                top = push(top, x)
+        elif c == "2":
+            d = int(input("Введите D: "))
+            top = push(top, d)
+            print("Новая вершина:", top.data if top else None)
+        elif c == "3":
+            print_stack(top)
+        elif c == "0":
+            break
+    except:
+        print("Ошибка ввода")
+