{ "data": { "question": { "questionId": "1640", "questionFrontendId": "1500", "categoryTitle": "Algorithms", "boundTopicId": 312329, "title": "Design a File Sharing System", "titleSlug": "design-a-file-sharing-system", "content": null, "translatedTitle": "设计文件分享系统", "translatedContent": null, "isPaidOnly": true, "difficulty": "Medium", "likes": 10, "dislikes": 0, "isLiked": null, "similarQuestions": "[]", "contributors": [], "langToValidPlayground": null, "topicTags": [ { "name": "Design", "slug": "design", "translatedName": "设计", "__typename": "TopicTagNode" }, { "name": "Hash Table", "slug": "hash-table", "translatedName": "哈希表", "__typename": "TopicTagNode" }, { "name": "Data Stream", "slug": "data-stream", "translatedName": "数据流", "__typename": "TopicTagNode" }, { "name": "Heap (Priority Queue)", "slug": "heap-priority-queue", "translatedName": "堆（优先队列）", "__typename": "TopicTagNode" } ], "companyTagStats": null, "codeSnippets": null, "stats": "{\"totalAccepted\": \"2K\", \"totalSubmission\": \"6.7K\", \"totalAcceptedRaw\": 2022, \"totalSubmissionRaw\": 6705, \"acRate\": \"30.2%\"}", "hints": [ "Try to solve it by keeping for each file chunk, the users who have this chunk.", "Try to solve it by keeping all the users in the system with their owned chunks, and when you request a chunk, check all users for it." ], "solution": null, "status": null, "sampleTestCase": "[\"FileSharing\",\"join\",\"join\",\"join\",\"request\",\"request\",\"leave\",\"request\",\"leave\",\"join\"]\n[[4],[[1,2]],[[2,3]],[[4]],[1,3],[2,2],[1],[2,1],[2],[[]]]", "metaData": "{\n \"classname\": \"FileSharing\",\n \"constructor\": {\n \"params\": [\n {\n \"type\": \"integer\",\n \"name\": \"m\"\n }\n ]\n },\n \"methods\": [\n {\n \"params\": [\n {\n \"type\": \"list\",\n \"name\": \"ownedChunks\"\n }\n ],\n \"name\": \"join\",\n \"return\": {\n \"type\": \"integer\"\n }\n },\n {\n \"params\": [\n {\n \"type\": \"integer\",\n \"name\": \"userID\"\n }\n ],\n \"name\": \"leave\",\n \"return\": {\n \"type\": \"void\"\n }\n },\n {\n \"params\": [\n {\n \"type\": \"integer\",\n \"name\": \"userID\"\n },\n {\n \"type\": \"integer\",\n \"name\": \"chunkID\"\n }\n ],\n \"name\": \"request\",\n \"return\": {\n \"type\": \"list\"\n }\n }\n ],\n \"return\": {\n \"type\": \"boolean\"\n },\n \"systemdesign\": true,\n \"manual\": false\n}", "judgerAvailable": true, "judgeType": "large", "mysqlSchemas": [], "enableRunCode": true, "envInfo": "{\"cpp\":[\"C++\",\"

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