Solution Week12: same-tree

Author: juhui-jeong

same-tree/juhui-jeong.java

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+/**
+ * 시간복잡도: O(n)
+ * 공간복잡도: O(h)
+ */
+class Solution {
+    public boolean isSameTree(TreeNode p, TreeNode q) {
+        if (p == null && q == null) return true;
+        if (p == null || q == null) return false;
+        if (p.val != q.val) return false;
+        return isSameTree(p.left, q.left) && isSameTree(p.right, q.right);
+    }
+}