Merge pull request soapyigu#291 from maligh/patch-2

Update PathSum.swift
erlangzhang · May 11, 2020 · 77b7fcc · 77b7fcc
2 parents dfe2b8a + e713133
commit 77b7fcc
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/Tree/PathSum.swift b/Tree/PathSum.swift
@@ -17,7 +17,7 @@
  */
 
 class PathSum {
-    func hasPathSum(root: TreeNode?, _ sum: Int) -> Bool {
+    func hasPathSum(_ root: TreeNode?, _ sum: Int) -> Bool {
         guard let root = root else {
             return false
         }
@@ -27,4 +27,4 @@ class PathSum {
 
         return hasPathSum(root.left, sum - root.val) || hasPathSum(root.right, sum - root.val)
     }
-}
+}