数据l构W四章选择题及(qing)参考答案[2]_跨考网
(tng) 1Q字W串?/span>ababaabab?/span> ?/span>nextval 为( Q?a target="_blank">北京邮电(sh)大学 1999 一?/span>1Q?/span>2分)(j)?/span>
AQ?/span>(0,1,0,1,04,1,0,1)
BQ?/span>(0,1,0,1,0,2,1,0,1)
CQ?/span>(0,1,0,1,0,0,0,1,1)
DQ?/span>(0,1,0,1,0,1,0,1,1)
(tng) (tng) (tng) 【参考答案?/span> A
2Q模式串t=?/span>abcaabbcabcaabdab’,该模式串?/span>next数组的gؓ(f)Q?/span> Q,nextval数组的gؓ(f) Q?/span> Q。【北京邮?sh)大?/span> 1998 二?/span>3 Q?/span>2分)(j)?/span>
AQ?/span>0 1 1 1 2 2 1 1 1 2 3 4 5 6 7 1 2
BQ?/span>0 1 1 1 2 1 2 1 1 2 3 4 5 6 1 1 2
CQ?/span>0 1 1 1 0 0 1 3 1 0 1 1 0 0 7 0 1
DQ?/span>0 1 1 1 2 2 3 1 1 2 3 4 5 6 7 1 2
EQ?/span>0 1 1 0 0 1 1 1 0 1 1 0 0 1 7 0 1
FQ?/span>0 1 1 0 2 1 3 1 0 1 1 0 2 1 7 0 1
(tng) (tng) (tng) 【参考答案?/span> D F
3Q若?/span>S=?/span>software?/span>,其子串的数目是( Q。?a target="_blank">西安?sh)子U技大学 2001应用 一?/span>2Q?/span>2分)(j)?/span>
AQ?/span>8 (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) BQ?/span>37 (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) CQ?/span>36 (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) DQ?/span>9
(tng) (tng) (tng) 【参考答案?/span> B
(tng)
4Q设SZ个长度ؓ(f)n的字W串Q其中的字符各不相同Q则S中的互异的非q_子串Q非IZ不同?/span>S本nQ的个数为( Q。【中U院计算所 1997 ?/span>
AQ?/span>2n-1 (tng) (tng) (tng) BQ?/span>n2 (tng) (tng) (tng) CQ?/span>(n2/2)+(n/2) (tng) (tng) (tng) DQ?/span>(n2/2)+(n/2)-1
E. (n2/2)-(n/2)-1 (tng) (tng) F.其他情况
(tng) (tng) (tng) 【参考答案?/span> D
(tng)
5Q串的长度是指( Q?a target="_blank">北京工商大学 2001 一?/span>6 Q?/span>3分)(j)?/span>
AQ串中所含不同字母的个数 (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) BQ串中所含字W的个数
CQ串中所含不同字W的个数 (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) (tng) DQ串中所含非I格字符的个?/span>
(tng) (tng) (tng) 【参考答案?/span> B
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