112. Path Sum (java)

Author: bluesword12350

solution/0112.Path Sum/Solution.java

@@ -0,0 +1,8 @@
+class Solution {
+    public boolean hasPathSum(TreeNode root, int sum) {
+        if (root == null) return false;
+        sum -= root.val;
+        return (root.left == null && root.right == null && sum == 0) ||
+                hasPathSum(root.left, sum) || hasPathSum(root.right, sum);
+    }
+}