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Create 1618_binarytree #6

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Create 1618_binarytree #6

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22 changes: 22 additions & 0 deletions LeetCode/1618_binarytree
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Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
class Solution:
def dfs(self, root, s, res):
if not root:
return
else:
if s == "":
s += str(root.val)
else:
s = s + "->" + str(root.val)
if not root.right and not root.left:
if s != "":
res.append(s)
self.dfs(root.right,s,res)
self.dfs(root.left,s,res)

# @param {TreeNode} root
# @return {string[]}
def binaryTreePaths(self, root):
res = []
s = ""
self.dfs(root, s, res)
return res