数据�l�构�W�五章填�I�题�?qi��ng)答案[6]_跨考网

       1. 已知�q�义�?/span>A=(9,7,( 8,10,(99)),12)�Q�试用求表头和表������操作Head( )�?/span>Tail( )���原子元�?/span>99�?/span>A中取出来�?/span> �?a target="_blank">西安交通大�?/a> 1996 四�?/span>5 (5�?/span>)�?/span>

　　【参考答案�?/span>

　　head�Q?/span>head�Q?/span>tail�Q?/span>tail�Q?/span>head�Q?/span>tail�Q?/span>tail�Q?/span>A�Q�）�Q�）�Q�）�Q?/span>

　　2. �q�义表的深度�?/span>_______。【北京轻工业学院 2000 一�?/span>1�Q?/span>2分）�?/span>

　　【参考答案�?/span>

　　表展开后所含括��L(f��ng)��层数

　　3. �q�义�?/span>(a,(a,b),d,e,((i,j),k))的长度是�Q?/span>1�Q?/span>_�Q�深度是�Q?/span>2�Q?/span>_。�?a target="_blank">�׃��大学 2001 三�?/span>9 (2�?/span>)】�?a target="_blank">西安�?sh��)子�U�技大学 2001软�g 一�?/span>5 �Q?/span>2分）�?/span> �?a target="_blank">哈尔滨工业大�?/a> 2001 一�?/span>2 �Q?/span>2分）�?/span>

　　【参考答案�?/span>

　　�Q?/span>1�Q?/span>5 �Q?/span>2�Q?/span>3

　　4. 已知�q�义�?/span>LS=(a�Q?/span>(b�Q?/span>c�Q?/span>d)�Q?/span>e),�q�用head�?/span>tail函数取出LS中原�?/span>b的运���是_______。�?a target="_blank">燕山大学 2001 二�?/span>2 �Q?/span>3分）�?/span>

　　【参考答案�?/span>

　　head(head(tail(LS)))

　　5. �q�义�?/span>A=�Q�（�Q?/span>a�Q?/span>b�Q�，�Q?/span>c�Q?/span>d�Q?/span>e�Q�）�Q�，取出A中的原子e的操作是: _______。�?a target="_blank">合肥工业大学 1999 三�?/span>5�Q?/span>2分）�?/span>

　　【参考答案�?/span>

　　head(tail(tail(head(tail(head(A))))))