{ "data": { "question": { "questionId": "2769", "questionFrontendId": "2675", "categoryTitle": "JavaScript", "boundTopicId": 2267107, "title": "Array of Objects to Matrix", "titleSlug": "array-of-objects-to-matrix", "content": null, "translatedTitle": "将对象数组转换为矩阵", "translatedContent": null, "isPaidOnly": true, "difficulty": "Hard", "likes": 4, "dislikes": 0, "isLiked": null, "similarQuestions": "[{\"title\": \"JSON Deep Equal\", \"titleSlug\": \"json-deep-equal\", \"difficulty\": \"Medium\", \"translatedTitle\": \"\\u5b8c\\u5168\\u76f8\\u7b49\\u7684 JSON \\u5b57\\u7b26\\u4e32\", \"isPaidOnly\": true}, {\"title\": \"Convert Object to JSON String\", \"titleSlug\": \"convert-object-to-json-string\", \"difficulty\": \"Medium\", \"translatedTitle\": \"\\u5c06\\u5bf9\\u8c61\\u8f6c\\u6362\\u4e3a JSON \\u5b57\\u7b26\\u4e32\", \"isPaidOnly\": true}]", "contributors": [], "langToValidPlayground": null, "topicTags": [], "companyTagStats": null, "codeSnippets": null, "stats": "{\"totalAccepted\": \"1K\", \"totalSubmission\": \"1.8K\", \"totalAcceptedRaw\": 1004, \"totalSubmissionRaw\": 1768, \"acRate\": \"56.8%\"}", "hints": [ "How could you split the problem up into sub-problems?", "1.) Write a function that converts a single object into a dictionary that maps the path name to values. You can solve this recursively by keeping track of current path list.", "2.) Write a function that converts a list of dictionaries into a matrix. Start by creating a list of all possible paths in any of the dictionaries. This will represent the columns." ], "solution": null, "status": null, "sampleTestCase": "[{\"b\":1,\"a\":2},{\"b\":3,\"a\":4}]", "metaData": "{\n \"name\": \"jsonToMatrix\",\n \"params\": [\n {\n \"name\": \"arr\",\n \"type\": \"string\"\n }\n ],\n \"return\": {\n \"type\": \"string\"\n },\n \"languages\": [\n \"typescript\",\n \"javascript\"\n ],\n \"manual\": true\n}", "judgerAvailable": true, "judgeType": "large", "mysqlSchemas": [], "enableRunCode": true, "envInfo": "{\"javascript\":[\"JavaScript\",\"
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