背单词

题目描述

给定一张包含N个单词的表，每个单词有个价值W。要求从中选出一个子序列使得其
中的每个单词是后一个单词的子串，最大化子序列中W的和。 
 

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输入格式

第一行一个整数TEST，表示数据组数。
接下来TEST组数据，每组数据第一行为一个整数N。
接下来N行，每行为一个字符串和一个整数W。 

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输出格式

TEST行，每行一个整数，表示W的和的最大值。
 
 
数据规模
设字符串的总长度为Len
30.的数据满足，TEST≤5，N≤500，Len≤10^4
100.的数据满足，TEST≤10，N≤20000，Len≤3*10^5

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样例输入

1
500
baababaaabbbabbbaaaabbbbaaabbbbabaabbababbabaabbbbabbaabbabbbabbabbabbaaaaabbbbabaaabaabaaaaabbbabaaabbaaaabbbaabbbaabbbaabbbbbabaaaabbabbbaaaabbaaaaaaababbbaaaaaabbbabbbbbbaabaababbabbbbaaabababbbbbabbabaaaaabbabababaabbbbabbabaabbbaaababbbabbaaabbbbaabbabbbaaabbbaababbbbbaababbaaaabbbbbabaababbbaabbbaaabaabbbbaaaaabbbbabaabbbaaaaaabaaababaaabbabbabaaaabbbaabaabbbbbbaababaababaaaaabaabaabaaaaaabaaabbaabababbabaaabbababaaabbbaabbbabbbababbbbbbaaabbbaababbbbbbababbaabbbbbaaaabbaabaabbbabbabaababbababaaabaaaababaaabbbbaaabbabbbabaabbabababbaaabaabaaaaabbbabbaaabbaababbaaaaaabaabbaababbbbabbaabaabaaaaabaabaabbbaabbbabaabbabbaaaabababbaaabbbaabababaabbababaaabaabaaaabbbabababbbbbabaaaabbabbbbaaaabbbaaaaaaababaaaabababaababbaaabababaabbabbbbaaabaabababbaaaaabbbaabbababaaaabbababaaaababbaabbbbabbbbaababbbbaaabaaabbbbaabaaabaabaabbbbaaaabaaabbbbbbbaabbabbaaaabbbbabbaabaaaaaabbabbbabaabbaabaaababbbaababaaaabbabbbbbbabbaaababbaaabaaabbaaaabbbabaabaaababaabababbbbbaaabbaaababbaaaaabbbbaabbabaabbbbbbbabbbababaabaabbbabaabaabbabaabbaaaaaaaabaaaaabbabaaababbabaabbaababbbbbbbbaaabbaaaababbabaabaabbbabbabaabbabbabbabbbabbbbbababbbabbbbaaaaaaaaabbbaaababbbbababaaaabbabbbbbbbaabababbaaaababbababaaaaaaabababbaabbababbaabbaaabaaabbaaaaabababbbabbbaaaaaabbbbaabaaabaababbaababbbaaaaaababbabaaaabbbababbaababaaaaabbabbbabbababbabaaaaaaaabbbbbabbaaaababbbaabaaabaaabbabbaaaaabaabbbbbbbabaabbbaabaaaabaabbabbababaabbaabbbbbaaaaaaabbbabaaaaaaaabaabbabaabbabbabbbbbaabaabaaabaabbaabaaaaabbbbbbbaabbbbaaaabbbababaababbbabaaababaabaabaababaaababbbbababaabbababbaabbbaabbbaaabbabababaabbabaabbbbaaaababbaabbabaaaaabbabbbbabbabaaaabaabbabbbabbbbabbababaabbabaabbbbbbbbabbbabbbabaabbaabaabaababbbbabaaababaaababbabbabaaaabaaabaaaababbabbbbbabaaabbaabababbbbaaabbbbbaaabaabaaaabbbaabbbabbaaaaabbaabbaabbbababbaabbbbbabaabaabbaaababababaaabababbbbabaaaababbabbbabbabbbbbbabbaabbbaabaabbabbbbaaaaaababaababbbabbabababbababababbaabbaababbabbaabaaabbbbbbbbaaabaabbbbbbbabbabaaabaaaabbabbbbbbbbbabbbaabbbabbbbaabbaababbbbbbbbaaababbaaaaaababababbbabaaabbbaaaabababbbabbbabaababaabaababbbabbaaaaabbabaaabaaabbabaababbaaabbaaabbaaababbbaabbaaaaaababaaaabbbbbaaababbabbbabbbababababaabbbbabaaaaababbabbaaabbabbabbabbaaaaaaabbbbabbaababbbbabbbaabaabbababbbabbbbbbbbbbaabbabbbbaabaaababbbbbbababaababaabababaabaabbaaabbabaaabbbabbabbaabbbaaabaaababbabaabaaaabaaababbbbbaaaaabbaabbaababababbbabaabbabbabbbaabbbbbaabaabbabaabbaabbabbabbaaababbaabbbabaabbaabaaaaabbabbababaabbbabaaabababbbbaaaabaaababbbabaaaabbbbaaaaaaaaaaaaaaabbbaaaabbaabbaabaabbabbabbbbaabaabbaaabbbabbababbbbbbbbbbabaaabaababbabbbbaaaaabababbbaaabbbbababbbbbaabbaaabbbabbaaabbabbbbbabbabbbaaaaabbaababbbaaababaababbbababaaabbbabbaaaabbaaaaaaaaabaaaabbaaabaaaabbbaaababbbbbababbababaabaaabaabbbbbbbaaabbaabaababaabbbaabbaabbaaabaaababbbaababbaabaababbaaababaabaabbabbaababbbabaabaaabbbaabbaaabbbbaababbbbaabbabaabbbbababbbbbaaaabbbbbbabbbababbaabbbaabaabbaaaaababbbbbbbabbbabaababaabababbabbbbabbababbaabbabaababbbbbabbbbbaabbabbaaaaabababbbbabbbbaabbaaabbaaaabababaabbbababaababaabbaaaaabaaabbbbbbbabaabbbbaaabababaabbababbabaabbababbbbbbbbbbbaaaabbabbababbaabbbababbbbaaabbaababbabbbaabbbbaaabbaaaaabaababaaaabbaabaaabaababbabbababbbbaabababaabaabababbbababbbbabababbabbbbbbbbaabaaabbbabbbbabaabbabbbabbaaabaabbbbabaaaaabbbaabbbbbaaaabaababbbaabaaabbbbaabaaaaaabbbbabbbbbbbabaaabbabaaaabbaabbbbabbaaaaaababbbbbbbbaaaabababbbaabaabbabaababbbabaaaaaababaaababbbaababbabbaabbaabababbbbbaaaaaaabbaaababaaaaaabbabbbbbbaabaabaabbaaabbbbabbbbbabbbaaabbababaabbabbbaaaaaaababababbbaabbaaabaabaaaaabbbbbbababbbabaaabaaabaaabbabaabbbbbababbaaabbbababaabaabaabbaaaabaabbabbbbabbababaaabababbbbbabaaabaabbaaabaabaabaaabbbabaabababbabababbabbaabbbbbbbbaabbbaaaaaaabababaabaaaabbbaabaaababbababaaabbbbbabababaaabbaababababbbbaababbbabbbbbaaaabbbbaaabaaaabababbbababbabbbabbbabbababaaaaabababbbaaabbbbbaababbabaabaaabaabbababaaabaaabbaaabaaaababababbabbbaababaabbbaaaaaaabaabbbabbaaababbbabbababbaaaaaaababbabbaabaababaaaaaaabaabbaaabbbaabbbbabbabaaaabbbbbaababaaaaaabbabaababaababbababbabbbabbbbaababbbbbbbaabaabbabaababbaaaabbbababbaaabaabbbbaabbbaaabbbaabaaabbbbbabbabbabbbbbabbaaabaaabbbabbbbbbababababaaabbbabbaaaaababbabbaaababaaaaababbbbbbabaababbabbbaaababbbaabbbbbabaaaabbbaabababababbbbbbbbaaaaabbbbbbaaaabbaabaaaabbaababaaabaabaabaaababbaaabaaabbababbababbbaabaaaababaabbaaabaaabaaabaabaaaababbabbaaaaaaabbbababbbabbbbbabbbbbabaabbabbababbbababbbabaabaabbbababbbbabbaabababbbbbababbbbbaababababaaaaaaabababaabbbaaaaaabbaaaabbabbaabbaaabaababaababbbbabaababaabaababbbabbaabbababbaabbabbababbbbaaabaabbbbbabaaabaababbbababaaabbaaaaaaabbbababaabbbbbaabbaabbabaababaaabbaababaaababbaaaaaaaaabbbaaaaabbbabbabbbbbaabbbbababbbaaabbaabbbbbbaabbbbaaababaaaabbababbbaabbaaaaabbaaabaabaaaabbaabaaaabbbbbababaaaaaabbbabbaabbaaaaabaabaabbaabbbaaaaaabbabababbababbaabbbaabbaaaaaaaabbabbbbbabbaababbbabbbabbaaaabaabbbbbbbaabbaaabbabbbaababbbabababbaaaabaaaabbabaabaaababaabaaaabababaabaaabaabbbabaaaabaaabababaababbbaabaababbabbaaaaaaabbbaaaabbabbaabaabaabbabbabbabababbabbaabaabbabbabaabbbabaaaaabababbaaaaaaabbabbaaaaabbbabbbbaaaabbbbbbaababbabbaaabbbbbabaababbaaaababaabaabbabaaaaabaaaabaaabbbbababaabaabbbbbaabbbbabbbaaaaabaabbaababbbababbbbbbabbbbaabbbbabbaaabbaabaabbbabbbbbaaaaababbaabbbaabaabaaaaababaabbbbbbbabbaaaabbbbbabbaaabbababbbabbbbbaabbababaabbaaaaaaabbaaabababaabaaaaabbbbbbbbabaababbabbaaaaabbbbabbbbbaaababbaaaabbababbbaabaabaaabbabababababababbabaaabbaaabaabbabaabaabbbbabbaabbbbaabbaaaaabaabbaaababbbbbaaaabbbaabbbbbabbabbaababbaabbbabaaaabbbbaabaabaabbbbbbaabbbabbbaababbbabababbbaabaabbaaabbaaaabbaabaaabaabbbbbbbabaabbaaaaabaaaabbabababbaabbaababbabbabaabbaababbbbbababaaaabaababaabaababbbbbabbaaabbbbbaababaabababbabbaabbaaabbaaaaabbbaabbbbbaaaabaabaaabaabaaabababaaaababaabaabbbbbabaaabbbabbbbbabbaababbababaaaaaabbababaaabbabbbbbbaaabbbbaaabaabaaabaaaabbbabababaaabbababbbaaaabbbbbaabaaababbaaaaaaabaabaabaabbbbbbaabbbabababbabbbbabbabababaaaabaaaaabbbbaababbbbaaabbbbbaabaabbaababbaaabaabaaabbbbaabababaaabbbbabaababababbbaababbabbbbbbabbbbaaabbaaabbbabbabaabbaaabaaaabbbbbbbaabaabbbbbbabbbbabbbabbabaabaabbaababbbbaababbaaaababbbbbbbaaaabaababbabbbbbabaabaabbaabbaaabbabbbbabbbbbbbbbaabaaaabababaabaabbbabbbaababbaaaabbaababbababbbabbbabbaaabbbbabaaaabbbbbbbabaaaaabbabbaaaaaabbaabaaababbbbaaaaabaabaaabbabbabaabaababbbbbbbabbbaaaabbaaababababbaaaaabbaabaabababaababbabaaaabbbbbababbbbaaabbbbaabbbbaabbabbababaaaaabaababbababbbbbaababaabbaaababbaabaaabbbaaabbabbbbaaabaaabaaabbabaabaabaaaaaabbabbaaababbabaabbbababababbbabaaaababbbaaaabbabaabbbbbabaaaabababbabbbbabbbbaaababababbaabbaaabbbaababbaababababbbabbababaaabbbaabbbabbaaabaabbbabaaaaaaaaaaaabbaaaabbbabbbbbaaaaabaabaabbababbbaababbaabbbbaabbaaabababababaaabbbaaababbabbbbaaaaabbaaabaaaabbbaabaabbbaabaabaaaaaaaaaaaaabbaabbbbabbababbaaabaabbbbbbabbabbabaababbaabbbaaaabbabaaabababbabbbabaaaabbaabbbaaaaaabaabbabbabaaaaaaabaabbbbaababaaaaaabababbaababbabaaaabaabaabbaabbaabababaaabbaabbabbabbaaaaaaaaababbbaabbbbaaabbababaababbbbabaabaabbabbbaaaaaabbababbbabbbaababbabbabbbbababbabababbababbbaaaaabbbbbbabbaaabaaabaaaaaabbbababbbbababbbbbbababbabaaababbbbbabbaaabbaaabbbbabbbbbaaabababaaabbabbbbbbabaaababaaabaababaaaababaababaaababaabbbbabbaaabbabababababbbabbaabbbbabbbbbabbaaaabab 542
aabbabbaaaabaabbbbbbbbbbaaabbbabbbaabbbbbbbaabbbbbbabbbaabbabababaabbbbbbababbbababaaababbaaababbaabbbbaaaabbbbaabbbbbabaaabaabbbababaabbababbaaaabbabbbabbaabbbbbbabbbaaabbbbaabababbababbbaabbaababaaabbaabaabbabababbbabaabbaabababaabaaababbbbbbaabbaaabbbabbbabbbaaaaabaabaaabaaabbaababbbbbaababaababbbbbbaaababaababbababbaabbbbbabaabbbabababaaabbaabaabbabbababbaabbaaababbbaabababbaaabbabaabbbabaabbbbbaaaababaababaabbbbaaabaabababaaaababbbbbbaaaabbabbbaaababbbaabbaaabbbaabbbbabbabbbabaaabaabaaababbbbbbaabbbbaababbaabbbaaababbbbaaabaabaaabaaababaaaabbaaababaaabaababaaaaabababbabbbbaabbaaaabbabbaaabaaaaaababbaaaababbbaabbbbbbbbbaabbabaabaabbbbaaaabbbbbaaaaabbbbaabbabbbaabaaaabbbbbabbbaabaabbbaabbbbaaaababaaabbaaabbbaaaaabaaaabbaabbbbbbbabbabbabbbaabbbbbbaaaababbbbbaabbaaaaaaabaaaaabababbbbbaabbbbbababbbbaaaababaabbabbbbabbabbbbbbbbbbabababbabbababbaabababaabbaababbababaabbabbbabbbabbaaabbaabbaabbbaabbbbbbabbbbbaaaaaaaaaabaabbaabbabbbbbbbabbbaabbaabababaaabaaaaaaaaaabaabbbbbabbababbbaaabbaab 275
aabbbbabbbbaaaababbbbbabaaaabbaaababaababaaaaaabaaabaabbbbbbbabbabbbabbabaaaabaabbbbabbbbbbbbaaaaabababbbabbaaababbaaaaababbbabbababaaaab 535
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aaaaba 356
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a 269
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a 605
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a 178
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b 575
b -818
a 556
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a -270
b 471
b -39
a -971
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b -648
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b -684
b -560
a -770

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样例输出

63212

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提示

没有写明提示

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题目来源

没有写明来源