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class Solution: def find _ path _ sum _ to _ k ( self , root: Optional [ TreeNode ] , k: int ) -
class Solution:
def findpathsumtokself root: OptionalTreeNode k: int bool:
if not root:
return False
if root.val k and not root.left and not root.right:
return True
return self.findpathsumtokrootleft, k root.val or self.findpathsumtokrootright, k root.val
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