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{"workbook":{"problemsBrief":"{\"HDU-7142\":[\"Grammar\",32,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2022%A1%B0%BA%BC%B5%E7%B1%AD%A1%B1%D6%D0%B9%FA%B4%F3%D1%A7%C9%FA%CB%E3%B7%A8%C9%E8%BC%C6%B3%AC%BC%B6%C1%AA%C8%FC%A3%A81%A3%A9\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2022“杭电杯”中国大学生算法设计超级联赛(1) \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-7143\":[\"Travel plan\",35,\"\\u003cdiv class\\u003d\\\"panel_content\\\"\\u003e \\u003ca href\\u003d\\\"https://acm.hdu.edu.cn/search.php?field\\u003dproblem\\u0026amp;key\\u003d2022%A1%B0%BA%BC%B5%E7%B1%AD%A1%B1%D6%D0%B9%FA%B4%F3%D1%A7%C9%FA%CB%E3%B7%A8%C9%E8%BC%C6%B3%AC%BC%B6%C1%AA%C8%FC%A3%A81%A3%A9\\u0026amp;source\\u003d1\\u0026amp;searchmode\\u003dsource\\\"\\u003e 2022“杭电杯”中国大学生算法设计超级联赛(1) \\u003c/a\\u003e \\u003c/div\\u003e\"],\"HDU-7144\":[\"Treasure\",70,\"\\u003cdiv 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