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分享组数据吧、

Posted by xiang556 at 2019-05-29 19:39:19 on Problem 1741
20 8
2 11 2
5 19 2
16 15 2
9 12 2
12 6 1
17 9 2
9 4 2
6 14 1
18 4 1
10 19 2
10 9 2
20 13 2
10 15 1
2 6 1
15 20 2
1 7 2
3 15 2
7 13 1
15 8 1

答案是141

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