Create 029 Add Two Numbers.py

029 Add Two Numbers.py

@@ -0,0 +1,33 @@
+class Node:
+    def __init__(self, data=0, next=None):
+        self.data = data
+        self.next = next
+
+
+# Don't change the code above.
+
+
+def addTwoNumbers(l1: Node, l2: Node) -> Node:
+    main = Node(0)
+    a = main
+    s = ''
+    while l1:
+        s += str(l1.data)
+        l1 = l1.next
+    s = s[::-1]
+
+    ss = ''
+    while l2:
+        ss+=str(l2.data)
+        l2 = l2.next
+    ss = ss[::-1]
+
+    sss = list(str(int(s)+int(ss)))[::-1]
+    n = len(sss)
+    i = 0
+
+    while i<n:
+        a.next = Node(sss[i])
+        a = a.next
+        i+=1
+    return main.next