From be194116e00db1af39185d391e308646d9df1f92 Mon Sep 17 00:00:00 2001
From: Rodolfo P A <6721075+rodoufu@users.noreply.github.com>
Date: Wed, 15 Jul 2026 15:41:16 -0300
Subject: [PATCH] Create add-two-numbers.py

---
 leetCode/LinkedList/add-two-numbers.py | 40 ++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 leetCode/LinkedList/add-two-numbers.py

diff --git a/leetCode/LinkedList/add-two-numbers.py b/leetCode/LinkedList/add-two-numbers.py
new file mode 100644
index 0000000..429e44d
--- /dev/null
+++ b/leetCode/LinkedList/add-two-numbers.py
@@ -0,0 +1,40 @@
+# https://leetcode.com/problems/add-two-numbers/
+# Definition for singly-linked list.
+# class ListNode:
+#     def __init__(self, val=0, next=None):
+#         self.val = val
+#         self.next = next
+class Solution:
+    def addTwoNumbers(self, l1: Optional[ListNode], l2: Optional[ListNode]) -> Optional[ListNode]:
+        carry = 0
+        resp = ListNode(0)
+        it = resp
+        while l1 and l2:
+            it.next = ListNode(0)
+            it = it.next
+            it.val = carry + l1.val + l2.val
+            carry = it.val // 10
+            it.val %= 10
+            l1 = l1.next
+            l2 = l2.next
+
+        while l1:
+            it.next = ListNode(0)
+            it = it.next
+            it.val = carry + l1.val
+            carry = it.val // 10
+            it.val %= 10
+            l1 = l1.next
+
+        while l2:
+            it.next = ListNode(0)
+            it = it.next
+            it.val = carry + l2.val
+            carry = it.val // 10
+            it.val %= 10
+            l2 = l2.next
+
+        if carry > 0:
+            it.next = ListNode(carry)
+
+        return resp.next