{ "data": { "question": { "questionId": "562", "questionFrontendId": "562", "categoryTitle": "Algorithms", "boundTopicId": 2654, "title": "Longest Line of Consecutive One in Matrix", "titleSlug": "longest-line-of-consecutive-one-in-matrix", "content": null, "translatedTitle": "矩阵中最长的连续1线段", "translatedContent": null, "isPaidOnly": true, "difficulty": "Medium", "likes": 78, "dislikes": 0, "isLiked": null, "similarQuestions": "[]", "contributors": [], "langToValidPlayground": null, "topicTags": [ { "name": "Array", "slug": "array", "translatedName": "数组", "__typename": "TopicTagNode" }, { "name": "Dynamic Programming", "slug": "dynamic-programming", "translatedName": "动态规划", "__typename": "TopicTagNode" }, { "name": "Matrix", "slug": "matrix", "translatedName": "矩阵", "__typename": "TopicTagNode" } ], "companyTagStats": null, "codeSnippets": null, "stats": "{\"totalAccepted\": \"6.4K\", \"totalSubmission\": \"12.8K\", \"totalAcceptedRaw\": 6426, \"totalSubmissionRaw\": 12830, \"acRate\": \"50.1%\"}", "hints": [ "One solution is to count ones in each direction separately and find the longest line. Don't you think it will take too much lines of code?", "Is it possible to use some extra space to make the solution simple?", "Can we use dynamic programming to make use of intermediate results?", "Think of a 3D array which can be used to store the longest line obtained so far for each direction." ], "solution": null, "status": null, "sampleTestCase": "[[0,1,1,0],[0,1,1,0],[0,0,0,1]]", "metaData": "{\n \"name\": \"longestLine\",\n \"params\": [\n {\n \"name\": \"mat\",\n \"type\": \"integer[][]\"\n }\n ],\n \"return\": {\n \"type\": \"integer\"\n }\n}", "judgerAvailable": true, "judgeType": "large", "mysqlSchemas": [], "enableRunCode": true, "envInfo": "{\"cpp\":[\"C++\",\"

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