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https://gitee.com/coder-xiaomo/leetcode-problemset
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@@ -11,7 +11,7 @@
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"translatedContent": null,
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"isPaidOnly": false,
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"difficulty": "Medium",
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"likes": 482,
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"likes": 485,
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"dislikes": 81,
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"isLiked": null,
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"similarQuestions": "[]",
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@@ -131,7 +131,7 @@
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"__typename": "CodeSnippetNode"
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}
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],
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"stats": "{\"totalAccepted\": \"17.9K\", \"totalSubmission\": \"36.3K\", \"totalAcceptedRaw\": 17932, \"totalSubmissionRaw\": 36281, \"acRate\": \"49.4%\"}",
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"stats": "{\"totalAccepted\": \"18K\", \"totalSubmission\": \"36.4K\", \"totalAcceptedRaw\": 17983, \"totalSubmissionRaw\": 36361, \"acRate\": \"49.5%\"}",
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"hints": [
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"For each square, know how many ones are up, left, down, and right of this square. You can find it in O(N^2) using dynamic programming.",
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"Now for each square ( O(N^3) ), we can evaluate whether that square is 1-bordered in O(1)."
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