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update
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@@ -161,7 +161,7 @@
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"__typename": "CodeSnippetNode"
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}
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],
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"stats": "{\"totalAccepted\": \"1.9K\", \"totalSubmission\": \"2.6K\", \"totalAcceptedRaw\": 1863, \"totalSubmissionRaw\": 2612, \"acRate\": \"71.3%\"}",
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"stats": "{\"totalAccepted\": \"1.9K\", \"totalSubmission\": \"2.6K\", \"totalAcceptedRaw\": 1867, \"totalSubmissionRaw\": 2616, \"acRate\": \"71.4%\"}",
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"hints": [
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"The problem can be solved using tree DP.",
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"Using node <code>0</code> as the root, let <code>dp[x]</code> be the minimum number of edge reversals so node <code>x</code> can reach every node in its subtree.",
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