[{"title":"( 3 个子文件 18.46MB ) 黑书 刘汝佳 包含习题代码答案","children":[{"title":"黑书","children":[{"title":"算法艺术与信息学竞赛.pdf <span style='color:#111;'> 17.94MB </span>","children":null,"spread":false},{"title":"算法艺术与信息学竞赛习题.pdf <span style='color:#111;'> 185.40KB </span>","children":null,"spread":false},{"title":"算法艺术与信息学竞赛题目完全解析.pdf <span style='color:#111;'> 911.38KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]