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top-100-liked/40/leetcode_test.go

@@ -0,0 +1,13 @@
+package top100liked
+
+// https://leetcode.cn/problems/diameter-of-binary-tree/description/?envType=study-plan-v2&envId=top-100-liked
+
+type TreeNode struct {
+	Val   int
+	Left  *TreeNode
+	Right *TreeNode
+}
+
+func diameterOfBinaryTree(root *TreeNode) int {
+
+}