#2905. 背单词

内存限制:128 MiB 时间限制:10 Sec

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。 
 

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。 

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

样例

样例输入


			
1
500
baababaaabbbabbbaaaabbbbaaabbbbabaabbababbabaabbbbabbaabbabbbabbabbabbaaaaabbbbabaaabaabaaaaabbbabaaabbaaaabbbaabbbaabbbaabbbbbabaaaabbabbbaaaabbaaaaaaababbbaaaaaabbbabbbbbbaabaababbabbbbaaabababbbbbabbabaaaaabbabababaabbbbabbabaabbbaaababbbabbaaabbbbaabbabbbaaabbbaababbbbbaababbaaaabbbbbabaababbbaabbbaaabaabbbbaaaaabbbbabaabbbaaaaaabaaababaaabbabbabaaaabbbaabaabbbbbbaababaababaaaaabaabaabaaaaaabaaabbaabababbabaaabbababaaabbbaabbbabbbababbbbbbaaabbbaababbbbbbababbaabbbbbaaaabbaabaabbbabbabaababbababaaabaaaababaaabbbbaaabbabbbabaabbabababbaaabaabaaaaabbbabbaaabbaababbaaaaaabaabbaababbbbabbaabaabaaaaabaabaabbbaabbbabaabbabbaaaabababbaaabbbaabababaabbababaaabaabaaaabbbabababbbbbabaaaabbabbbbaaaabbbaaaaaaababaaaabababaababbaaabababaabbabbbbaaabaabababbaaaaabbbaabbababaaaabbababaaaababbaabbbbabbbbaababbbbaaabaaabbbbaabaaabaabaabbbbaaaabaaabbbbbbbaabbabbaaaabbbbabbaabaaaaaabbabbbabaabbaabaaababbbaababaaaabbabbbbbbabbaaababbaaabaaabbaaaabbbabaabaaababaabababbbbbaaabbaaababbaaaaabbbbaabbabaabbbbbbbabbbababaabaabbbabaabaabbabaabbaaaaaaaabaaaaabbabaaababbabaabbaababbbbbbbbaaabbaaaababbabaabaabbbabbabaabbabbabbabbbabbbbbababbbabbbbaaaaaaaaabbbaaababbbbababaaaabbabbbbbbbaabababbaaaababbababaaaaaaabababbaabbababbaabbaaabaaabbaaaaabababbbabbbaaaaaabbbbaabaaabaababbaababbbaaaaaababbabaaaabbbababbaababaaaaabbabbbabbababbabaaaaaaaabbbbbabbaaaababbbaabaaabaaabbabbaaaaabaabbbbbbbabaabbbaabaaaabaabbabbababaabbaabbbbbaaaaaaabbbabaaaaaaaabaabbabaabbabbabbbbbaabaabaaabaabbaabaaaaabbbbbbbaabbbbaaaabbbababaababbbabaaababaabaabaababaaababbbbababaabbababbaabbbaabbbaaabbabababaabbabaabbbbaaaababbaabbabaaaaabbabbbbabbabaaaabaabbabbbabbbbabbababaabbabaabbbbbbbbabbbabbbabaabbaabaabaababbbbabaaababaaababbabbabaaaabaaabaaaababbabbbbbabaaabbaabababbbbaaabbbbbaaabaabaaaabbbaabbbabbaaaaabbaabbaabbbababbaabbbbbabaabaabbaaababababaaabababbbbabaaaababbabbbabbabbbbbbabbaabbbaabaabbabbbbaaaaaababaababbbabbabababbababababbaabbaababbabbaabaaabbbbbbbbaaabaabbbbbbbabbabaaabaaaabbabbbbbbbbbabbbaabbbabbbbaabbaababbbbbbbbaaababbaaaaaababababbbabaaabbbaaaabababbbabbbabaababaabaababbbabbaaaaabbabaaabaaabbabaababbaaabbaaabbaaababbbaabbaaaaaababaaaabbbbbaaababbabbbabbbababababaabbbbabaaaaababbabbaaabbabbabbabbaaaaaaabbbbabbaababbbbabbbaabaabbababbbabbbbbbbbbbaabbabbbbaabaaababbbbbbababaababaabababaabaabbaaabbabaaabbbabbabbaabbbaaabaaababbabaabaaaabaaababbbbbaaaaabbaabbaababababbbabaabbabbabbbaabbbbbaabaabbabaabbaabbabbabbaaababbaabbbabaabbaabaaaaabbabbababaabbbabaaabababbbbaaaabaaababbbabaaaabbbbaaaaaaaaaaaaaaabbbaaaabbaabbaabaabbabbabbbbaabaabbaaabbbabbababbbbbbbbbbabaaabaababbabbbbaaaaabababbbaaabbbbababbbbbaabbaaabbbabbaaabbabbbbbabbabbbaaaaabbaababbbaaababaababbbababaaabbbabbaaaabbaaaaaaaaabaaaabbaaabaaaabbbaaababbbbbababbababaabaaabaabbbbbbbaaabbaabaababaabbbaabbaabbaaabaaababbbaababbaabaababbaaababaabaabbabbaababbbabaabaaabbbaabbaaabbbbaababbbbaabbabaabbbbababbbbbaaaabbbbbbabbbababbaabbbaabaabbaaaaababbbbbbbabbbabaababaabababbabbbbabbababbaabbabaababbbbbabbbbbaabbabbaaaaabababbbbabbbbaabbaaabbaaaabababaabbbababaababaabbaaaaabaaabbbbbbbabaabbbbaaabababaabbababbabaabbababbbbbbbbbbbaaaabbabbababbaabbbababbbbaaabbaababbabbbaabbbbaaabbaaaaabaababaaaabbaabaaabaababbabbababbbbaabababaabaabababbbababbbbabababbabbbbbbbbaabaaabbbabbbbabaabbabbbabbaaabaabbbbabaaaaabbbaabbbbbaaaabaababbbaabaaabbbbaabaaaaaabbbbabbbbbbbabaaabbabaaaabbaabbbbabbaaaaaababbbbbbbbaaaabababbbaabaabbabaababbbabaaaaaababaaababbbaababbabbaabbaabababbbbbaaaaaaabbaaababaaaaaabbabbbbbbaabaabaabbaaabbbbabbbbbabbbaaabbababaabbabbbaaaaaaababababbbaabbaaabaabaaaaabbbbbbababbbabaaabaaabaaabbabaabbbbbababbaaabbbababaabaabaabbaaaabaabbabbbbabbababaaabababbbbbabaaabaabbaaabaabaabaaabbbabaabababbabababbabbaabbbbbbbbaabbbaaaaaaabababaabaaaabbbaabaaababbababaaabbbbbabababaaabbaababababbbbaababbbabbbbbaaaabbbbaaabaaaabababbbababbabbbabbbabbababaaaaabababbbaaabbbbbaababbabaabaaabaabbababaaabaaabbaaabaaaababababbabbbaababaabbbaaaaaaabaabbbabbaaababbbabbababbaaaaaaababbabbaabaababaaaaaaabaabbaaabbbaabbbbabbabaaaabbbbbaababaaaaaabbabaababaababbababbabbbabbbbaababbbbbbbaabaabbabaababbaaaabbbababbaaabaabbbbaabbbaaabbbaabaaabbbbbabbabbabbbbbabbaaabaaabbbabbbbbbababababaaabbbabbaaaaababbabbaaababaaaaababbbbbbabaababbabbbaaababbbaabbbbbabaaaabbbaabababababbbbbbbbaaaaabbbbbbaaaabbaabaaaabbaababaaabaabaabaaababbaaabaaabbababbababbbaabaaaababaabbaaabaaabaaabaabaaaababbabbaaaaaaabbbababbbabbbbbabbbbbabaabbabbababbbababbbabaabaabbbababbbbabbaabababbbbbababbbbbaababababaaaaaaabababaabbbaaaaaabbaaaabbabbaabbaaabaababaababbbbabaababaabaababbbabbaabbababbaabbabbababbbbaaabaabbbbbabaaabaababbbababaaabbaaaaaaabbbababaabbbbbaabbaabbabaababaaabbaababaaababbaaaaaaaaabbbaaaaabbbabbabbbbbaabbbbababbbaaabbaabbbbbbaabbbbaaababaaaabbababbbaabbaaaaabbaaabaabaaaabbaabaaaabbbbbababaaaaaabbbabbaabbaaaaabaabaabbaabbbaaaaaabbabababbababbaabbbaabbaaaaaaaabbabbbbbabbaababbbabbbabbaaaabaabbbbbbbaabbaaabbabbbaababbbabababbaaaabaaaabbabaabaaababaabaaaabababaabaaabaabbbabaaaabaaabababaababbbaabaababbabbaaaaaaabbbaaaabbabbaabaabaabbabbabbabababba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542
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aabbbbabbbbaaaababbbbbabaaaabbaaababaababaaaaaabaaabaabbbbbbbabbabbbabbabaaaabaabbbbabbbbbbbbaaaaabababbbabbaaababbaaaaababbbabbababaaaab 535
abbabaaaabaabaabbaabbaaabababbbbaabbbbbaabaababbbbbbaaaaababbbaaabaaaaaabbabaabbaaaabbbabababbbabaabbabbabababbababaaaabbabbabbbbababbabaaaaababbaabaabbbabab 565
bbabb -685
ba 279
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a -912
aaaaba 356
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b -831
b -779
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a -534
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a 284
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a -629
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a -206
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a -185
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a -374
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b 223
a 512
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a 269
b 85
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a 882
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b 338
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a 786
b 11
b 555
b 264
a -767
a 747
a -247
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a 463
b 491
a -387
a -654
b -55
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a -76
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a 729
b 149
a 293
a -209
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b -921
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b 640
a 269
b 849
a 894
b 697
a 605
b -730
a -786
a 780
a 178
b -816
b 575
b -818
a 556
b 683
a -270
b 471
b -39
a -971
a 667
a 123
a 274
a -45
a 751
b -648
a 885
b -10
a -915
a 225
b -684
b -560
a -770

样例输出


			
63212

数据范围与提示