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小墨
2022-05-02 23:44:12 +08:00
parent 7ea03594b3
commit 2a71c78585
4790 changed files with 11696 additions and 10944 deletions
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leetcode/originData/number-of-submatrices-that-sum-to-target.json
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@@ -11,7 +11,7 @@
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"difficulty": "Hard",
"likes": 1518,
"likes": 1532,
"dislikes": 37,
"isLiked": null,
"similarQuestions": "[]",
@@ -155,7 +155,7 @@
"__typename": "CodeSnippetNode"
}
],
"stats": "{\"totalAccepted\": \"47.4K\", \"totalSubmission\": \"71.4K\", \"totalAcceptedRaw\": 47361, \"totalSubmissionRaw\": 71437, \"acRate\": \"66.3%\"}",
"stats": "{\"totalAccepted\": \"48K\", \"totalSubmission\": \"72.3K\", \"totalAcceptedRaw\": 47953, \"totalSubmissionRaw\": 72282, \"acRate\": \"66.3%\"}",
"hints": [
"Using a 2D prefix sum, we can query the sum of any submatrix in O(1) time.\r\nNow for each (r1, r2), we can find the largest sum of a submatrix that uses every row in [r1, r2] in linear time using a sliding window."
],