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117, "total_submitted": 135, "total_column_articles": 7, "frontend_question_id": "3400", "is_new_question": false }, "status": null, "difficulty": { "level": 2 }, "paid_only": true, "is_favor": false, "frequency": 0, "progress": 0 }, { "stat": { "question_id": 3739, "question__title": "Manhattan Distances of All Arrangements of Pieces", "question__title_slug": "manhattan-distances-of-all-arrangements-of-pieces", "question__hide": false, "total_acs": 751, "total_submitted": 1380, "total_column_articles": 10, "frontend_question_id": "3426", "is_new_question": false }, "status": null, "difficulty": { "level": 3 }, "paid_only": false, "is_favor": false, "frequency": 0, "progress": 0 }, { "stat": { "question_id": 3737, "question__title": "Paint House IV", "question__title_slug": "paint-house-iv", "question__hide": false, "total_acs": 1887, "total_submitted": 3416, "total_column_articles": 28, "frontend_question_id": "3429", "is_new_question": false }, "status": null, "difficulty": { 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203, "total_submitted": 357, "total_column_articles": 5, "frontend_question_id": "3135", "is_new_question": false }, "status": null, "difficulty": { "level": 2 }, "paid_only": true, "is_favor": false, "frequency": 0, "progress": 0 }, { "stat": { "question_id": 3440, "question__title": "Server Utilization Time", "question__title_slug": "server-utilization-time", "question__hide": false, "total_acs": 433, "total_submitted": 748, "total_column_articles": 16, "frontend_question_id": "3126", "is_new_question": false }, "status": null, "difficulty": { "level": 2 }, "paid_only": true, "is_favor": false, "frequency": 0, "progress": 0 }, { "stat": { "question_id": 3439, "question__title": "Find Minimum Diameter After Merging Two Trees", "question__title_slug": "find-minimum-diameter-after-merging-two-trees", "question__hide": false, "total_acs": 3532, "total_submitted": 10339, "total_column_articles": 20, "frontend_question_id": "3203", "is_new_question": false }, "status": null, "difficulty": 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