Update solution 002 [Python3]

Author: chakyam

solution/002.Add Two Numbers/Solution.py

@@ -0,0 +1,43 @@
+# Definition for singly-linked list.
+# class ListNode:
+#     def __init__(self, x):
+#         self.val = x
+#         self.next = None
+
+class Solution:
+    def addTwoNumbers(self, l1, l2):
+        """
+        :type l1: ListNode
+        :type l2: ListNode
+        :rtype: ListNode
+        """
+        ans=ListNode(-1)
+        mn=ans
+        tmp1=[]
+        while l1:
+            tmp1.append(l1.val)
+            l1=l1.next
+        tmp1.reverse()
+        l11=''
+        for i in tmp1:
+            l11+=str(i)
+        l11=int(l11)
+        tmp2=[]
+        while l2:
+            tmp2.append(l2.val)
+            l2=l2.next
+        tmp2.reverse()
+        l22=''
+        for i in tmp2:
+            l22+=str(i)
+        l22=int(l22)
+        tmp=l11+l22
+        tmp=str(tmp)
+        tmp3=[]
+        for i in tmp:
+            tmp3.append(i)
+        tmp3.reverse()
+        for j in tmp3:
+            ans.next=ListNode(int(j))
+            ans=ans.next
+        return mn.next