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Problem 1468 >> 另一组样例
cnlarryzhong @ 2018-01-12 01:18:09
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本题原题 (POJ-1741) : http://poj.org/problem?id=1741
Sample Input
5
1 2 3
1 3 1
1 4 2
3 5 1
4
Sample Output
8
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