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贪心+枚举,0ms,改到我吐血了,随机了不下10万组数据。ps:提供1000组数据,能过应该就可以了。

Posted by sicojuy at 2011-04-09 16:14:55 on Problem 1915
10000
2
1 1
1 1
7
6 3
3 5
5
4 0
2 4
9
5 8
0 5
4
0 1
2 1
7
3 4
5 5
5
0 0
1 2
8
0 5
2 3
9
5 8
6 2
4
2 0
1 2
6
3 1
1 0
10
2 2
9 4
8
3 2
4 5
4
1 3
2 3
2
0 0
1 0
4
3 3
1 1
10
0 9
7 6
8
3 5
1 4
2
1 1
1 0
8
6 7
3 1
7
6 5
6 6
5
1 0
4 0
9
8 4
2 1
8
4 2
6 0
6
0 1
4 4
2
1 0
1 1
3
0 1
2 1
7
4 1
5 6
7
1 6
3 2
9
7 8
8 5
7
0 2
3 4
6
1 1
2 1
1
0 0
0 0
4
3 2
3 3
10
5 7
6 0
5
1 3
2 0
8
5 6
0 1
9
6 6
1 0
6
1 4
0 4
7
2 1
2 3
3
1 2
1 1
7
3 4
2 1
1
0 0
0 0
1
0 0
0 0
3
2 0
1 2
9
7 5
8 1
4
2 3
2 0
7
6 0
6 0
7
0 3
4 5
7
0 3
2 5
5
3 3
2 1
1
0 0
0 0
4
3 0
0 2
10
2 0
9 2
4
3 2
3 1
10
5 7
3 8
6
1 2
1 4
1
0 0
0 0
3
1 0
0 0
8
1 4
0 7
3
1 2
2 1
5
3 1
4 4
7
4 2
2 4
5
0 4
3 2
1
0 0
0 0
4
0 0
0 2
5
0 4
4 0
7
6 2
5 4
10
9 7
8 2
5
4 2
1 2
3
2 0
0 2
2
0 1
0 1
5
0 4
1 2
7
0 5
2 1
7
2 2
0 1
4
2 0
0 0
5
0 2
3 4
3
2 0
2 0
10
1 7
4 4
3
1 2
0 1
8
3 3
3 6
3
1 0
2 1
4
1 3
1 1
3
2 0
1 0
4
2 2
2 0
6
0 1
2 4
5
4 1
0 3
8
6 4
3 6
3
1 2
1 2
4
2 3
3 3
2
1 1
1 0
3
2 2
0 1
2
1 1
0 1
1
0 0
0 0
10
7 2
5 1
10
2 6
0 2
8
3 7
7 3
3
1 2
0 1
1
0 0
0 0
6
1 5
5 5
10
5 5
6 8
3
1 1
2 2
4
1 2
1 2
7
5 6
6 1
5
4 1
2 0
5
4 2
1 3
8
2 2
6 3
5
2 2
1 4
4
1 0
2 0
1
0 0
0 0
7
0 1
2 5
8
5 2
2 7
9
1 8
5 7
8
3 2
0 5
5
1 4
2 2
6
2 1
0 2
3
0 1
2 2
6
5 2
4 0
10
7 0
8 3
6
0 4
3 4
5
4 3
2 1
4
1 2
2 1
8
4 3
4 3
6
0 0
0 2
1
0 0
0 0
5
4 4
4 4
9
2 6
5 5
6
2 3
2 2
3
1 1
2 2
8
0 5
5 4
5
1 1
4 0
6
2 4
1 2
10
4 4
9 7
9
6 6
8 5
4
1 0
0 0
3
2 2
2 2
10
6 9
1 8
3
1 1
0 2
2
1 0
1 1
7
2 4
3 0
8
7 2
2 7
2
0 1
1 1
3
1 2
1 0
3
2 2
1 1
4
1 1
2 0
9
0 0
1 3
7
2 6
6 6
7
2 3
5 0
6
3 3
4 1
9
1 6
5 7
5
1 0
0 4
1
0 0
0 0
5
2 0
1 4
1
0 0
0 0
10
7 0
6 0
5
0 0
0 3
10
7 2
4 5
5
1 3
2 1
7
0 4
6 1
2
1 1
1 0
8
7 1
7 2
10
1 0
0 7
4
1 0
3 0
10
1 7
8 5
2
1 1
0 0
6
2 1
2 2
8
1 7
2 0
6
2 2
1 2
8
7 4
0 2
1
0 0
0 0
4
1 3
3 1
10
4 4
7 5
5
4 4
2 3
1
0 0
0 0
1
0 0
0 0
5
3 1
0 4
4
0 3
0 0
8
4 7
1 6
6
1 4
0 2
7
2 6
3 4
6
5 3
0 2
6
2 0
4 2
8
7 1
1 6
10
5 1
5 9
9
7 2
7 1
1
0 0
0 0
10
7 1
5 4
8
4 0
6 1
9
0 2
5 8
2
0 0
1 0
1
0 0
0 0
4
2 2
0 1
10
3 0
4 6
2
0 0
1 1
6
4 1
0 1
8
4 2
5 6
8
1 4
2 0
4
0 1
2 1
6
0 5
3 2
4
1 3
2 1
10
1 4
3 3
6
0 1
3 1
8
1 5
5 0
10
4 0
9 1
2
0 0
1 1
7
3 5
3 6
6
2 4
2 0
1
0 0
0 0
1
0 0
0 0
2
1 0
1 0
2
0 1
0 1
10
5 7
9 1
8
3 2
3 5
4
3 1
3 2
7
1 4
1 4
3
2 1
2 1
8
1 2
6 5
1
0 0
0 0
7
1 4
5 4
6
5 3
2 4
9
4 0
8 3
7
2 0
0 1
7
2 5
3 5
4
3 0
3 2
8
3 1
7 1
9
7 3
2 0
9
2 2
5 3
9
4 0
6 8
1
0 0
0 0
1
0 0
0 0
6
2 5
4 4
8
0 1
4 3
5
3 3
3 4
2
0 0
0 1
1
0 0
0 0
6
4 2
4 0
10
7 1
8 7
4
3 0
3 3
10
5 7
3 8
1
0 0
0 0
9
5 2
6 4
5
1 4
2 4
9
0 6
6 2
7
5 3
2 1
7
1 1
6 1
7
4 4
5 1
10
3 2
8 4
1
0 0
0 0
7
3 1
4 1
4
1 1
0 0
5
0 0
3 4
7
0 0
1 5
7
2 5
4 4
6
4 5
4 0
4
1 0
1 2
10
2 0
6 0
9
6 7
2 8
2
1 0
1 1
7
6 0
2 3
2
0 1
1 1
5
1 0
2 2
6
1 0
5 1
6
4 1
1 1
3
1 1
2 1
4
2 3
2 1
4
3 0
1 3
4
2 3
0 3
10
4 6
5 8
6
2 5
0 3
1
0 0
0 0
9
5 5
0 3
7
5 1
0 6
8
3 4
7 7
2
1 0
0 0
3
2 2
1 0
6
2 1
3 1
8
2 3
4 0
10
9 2
8 7
5
3 1
2 2
1
0 0
0 0
10
4 8
5 6
4
0 3
0 2
2
0 1
1 1
5
1 0
4 3
7
1 6
6 0
10
0 6
4 8
2
0 1
1 1
10
8 1
9 3
9
7 5
3 3
10
8 6
2 7
3
1 1
0 2
9
0 3
5 6
3
1 2
0 0
6
0 3
4 3
8
2 0
2 5
3
2 0
2 0
8
5 3
3 4
10
3 7
5 0
7
5 2
2 3
5
0 4
2 2
6
2 1
0 3
5
1 4
2 4
1
0 0
0 0
9
2 4
1 0
2
0 0
1 0
8
3 2
6 1
6
1 0
4 3
10
9 8
7 8
4
0 0
2 0
6
2 5
0 5
8
4 2
1 5
2
1 0
0 1
9
8 6
5 6
5
2 2
0 1
2
1 1
0 1
7
1 3
1 1
10
6 1
3 4
4
3 1
0 2
4
1 0
2 2
8
5 6
0 1
5
2 2
4 1
7
1 5
6 3
3
0 2
1 0
9
6 8
7 8
7
2 1
2 3
9
2 6
5 0
5
1 3
4 1
1
0 0
0 0
8
1 6
0 6
7
1 3
5 5
6
3 2
4 1
5
4 1
3 2
9
6 2
6 0
8
1 4
6 7
7
6 2
0 3
4
0 0
0 3
3
2 1
0 1
3
1 2
0 2
7
3 3
5 2
10
9 6
0 1
10
1 9
5 4
7
6 6
1 1
10
7 4
1 0
3
1 0
2 0
6
2 2
5 1
4
1 2
3 2
4
3 2
2 0
9
7 3
5 3
6
0 5
1 2
2
0 0
0 0
8
2 1
4 2
6
0 5
2 3
3
0 0
2 2
7
5 0
2 6
10
5 2
7 9
7
2 6
3 5
1
0 0
0 0
9
8 1
4 5
4
3 2
3 1
5
4 2
4 3
3
0 2
2 1
9
7 7
7 4
6
2 2
2 1
9
4 1
7 6
2
0 1
1 1
1
0 0
0 0
5
3 0
0 2
8
3 2
0 4
4
0 1
1 2
7
6 2
0 1
5
4 0
2 4
8
3 5
0 0
10
7 8
5 9
3
1 2
0 1
6
2 3
1 3
4
3 2
1 3
3
0 0
0 2
4
2 3
3 0
7
3 3
1 0
7
3 4
2 3
2
0 1
1 1
8
5 2
1 5
9
1 7
0 6
9
7 1
6 6
8
3 6
4 0
4
0 2
2 2
10
6 7
2 6
10
8 5
4 6
2
1 0
1 1
7
3 5
6 3
9
7 2
8 4
5
4 2
3 3
3
2 1
0 1
5
1 4
2 4
7
0 1
2 2
8
6 2
0 7
3
1 1
2 2
10
9 7
6 5
5
4 3
3 2
1
0 0
0 0
6
4 1
3 5
4
3 0
3 3
4
2 2
3 3
7
3 3
1 2
9
2 8
2 3
8
4 0
4 7
5
1 2
0 0
7
6 6
5 4
3
1 0
2 2
6
3 1
2 0
5
1 1
3 2
3
0 1
2 0
10
1 2
4 1
9
5 0
6 7
10
0 0
7 2
1
0 0
0 0
5
4 0
2 3
8
4 0
0 2
3
2 1
2 0
9
8 1
6 5
2
0 0
0 1
1
0 0
0 0
4
0 1
1 3
5
3 4
3 3
6
3 3
0 1
3
1 1
1 2
5
4 1
4 2
6
3 3
5 3
6
0 2
0 3
10
2 2
0 2
6
1 5
0 2
5
2 2
2 3
4
3 1
2 2
5
3 3
3 0
1
0 0
0 0
3
2 2
0 0
8
6 6
5 7
6
5 1
3 0
3
2 1
1 1
5
4 2
4 4
8
1 6
1 7
5
3 3
3 4
9
3 3
7 6
1
0 0
0 0
5
0 0
3 0
5
2 4
4 0
7
4 2
4 0
5
1 2
1 2
2
0 0
1 0
3
1 1
2 1
10
9 8
3 0
8
4 2
4 1
6
0 1
5 0
7
1 0
1 2
9
7 0
1 4
6
5 5
1 0
7
0 5
1 5
9
6 6
3 2
5
1 2
0 0
2
1 1
1 0
8
7 0
1 5
6
1 2
0 0
3
0 1
0 2
6
0 5
1 1
4
3 1
1 3
7
0 4
1 3
7
4 1
4 5
5
4 0
4 1
10
6 5
2 2
6
1 3
4 2
3
2 2
2 2
4
2 2
3 1
7
3 6
4 4
7
3 5
1 0
5
2 3
2 2
7
5 1
6 2
1
0 0
0 0
2
0 1
0 1
2
0 1
1 0
3
1 1
1 2
10
9 7
0 2
2
0 0
0 1
5
2 1
3 0
5
0 1
1 4
6
2 3
3 3
6
1 0
3 5
7
1 4
2 5
5
1 3
4 1
2
0 0
1 1
3
2 0
0 1
9
3 6
8 5
4
2 2
3 2
6
2 0
5 3
6
2 4
4 5
9
0 5
3 6
1
0 0
0 0
8
1 0
5 1
10
9 5
7 9
9
6 0
1 1
4
2 0
1 3
1
0 0
0 0
7
4 1
3 6
5
4 0
2 0
4
3 1
1 0
5
0 3
3 2
10
0 6
5 9
1
0 0
0 0
5
2 0
3 3
4
2 0
0 0
7
4 3
3 5
8
5 1
6 6
4
0 0
3 1
10
9 5
9 4
10
9 9
7 6
4
1 2
2 1
9
2 3
0 6
6
5 1
1 4
8
5 5
3 7
4
0 1
3 0
5
4 3
0 0
4
0 0
1 1
7
2 0
5 0
9
8 6
1 3
4
3 3
3 1
3
2 2
1 1
2
0 0
0 0
5
3 1
3 3
9
0 8
6 2
5
1 0
4 0
7
0 5
2 5
4
1 1
3 1
10
6 1
9 1
7
0 4
2 6
2
1 0
1 0
8
0 5
7 1
8
1 1
0 1
5
4 3
4 2
4
1 1
2 3
7
6 1
0 2
4
0 0
0 1
4
1 0
1 1
10
1 0
9 8
6
4 5
0 1
10
9 0
3 6
3
0 0
0 0
6
4 5
4 3
3
2 0
0 2
5
3 3
1 2
6
4 2
3 1
2
1 0
1 0
3
2 1
2 0
9
8 4
4 2
7
5 6
3 6
6
5 5
4 1
10
8 6
7 7
9
1 1
2 2
8
1 2
2 7
5
1 4
0 3
7
1 4
3 0
1
0 0
0 0
5
2 3
3 0
1
0 0
0 0
2
0 1
0 1
8
5 7
3 5
5
0 3
3 1
6
3 1
1 5
6
5 2
5 0
2
0 0
0 0
1
0 0
0 0
8
7 6
3 6
7
5 5
6 3
7
6 1
3 6
3
0 0
1 2
10
1 9
9 9
4
2 2
3 0
6
5 5
3 0
9
4 8
4 6
7
4 6
5 2
9
8 8
6 2
10
8 4
4 2
8
4 3
7 1
6
0 4
3 0
2
0 0
0 0
6
0 1
0 1
8
2 3
4 6
10
9 5
0 7
6
1 0
3 1
8
6 0
0 5
10
4 3
7 1
5
3 1
2 1
8
4 0
6 7
6
3 2
5 2
10
5 1
6 7
7
3 3
5 1
5
0 0
3 3
9
1 6
1 4
6
5 3
2 2
8
0 5
1 7
4
2 2
3 2
5
4 0
1 2
8
5 0
6 5
8
3 7
6 4
4
1 3
3 2
7
2 3
4 4
4
1 0
2 3
10
3 5
9 0
6
1 5
5 4
5
1 3
4 2
3
0 0
0 2
9
3 0
3 4
5
2 0
2 4
2
1 0
1 0
10
0 1
7 6
10
3 2
0 6
5
4 0
1 2
10
0 6
3 4
10
3 8
8 3
6
4 4
3 3
2
0 0
0 0
1
0 0
0 0
6
0 1
1 3
9
3 4
6 1
9
1 2
5 7
7
1 1
5 3
2
0 0
0 1
5
0 0
3 4
6
0 4
0 1
8
1 5
4 6
7
3 4
1 4
5
2 0
2 4
1
0 0
0 0
2
0 1
0 0
7
0 2
0 5
6
2 1
3 4
3
0 1
0 1
2
1 1
1 1
9
1 5
5 8
1
0 0
0 0
1
0 0
0 0
10
3 4
2 5
1
0 0
0 0
6
5 3
4 5
9
0 8
8 5
6
3 5
3 0
1
0 0
0 0
7
3 2
4 6
2
0 1
1 0
6
4 1
4 4
10
8 1
9 3
2
0 0
1 0
5
4 2
3 4
6
4 0
3 4
6
5 0
2 1
7
3 2
0 0
9
7 0
7 7
4
2 1
3 0
8
6 2
4 2
3
1 1
0 1
3
1 0
2 0
1
0 0
0 0
1
0 0
0 0
1
0 0
0 0
3
0 1
0 2
5
3 1
0 3
4
1 0
3 1
9
3 1
2 8
9
8 2
0 4
3
2 2
1 1
3
0 2
0 0
3
0 2
0 2
6
4 5
2 0
5
4 0
0 0
8
4 6
7 5
7
1 5
6 3
1
0 0
0 0
6
3 0
3 3
10
0 1
3 8
10
4 2
9 3
5
0 2
4 1
8
5 4
5 6
8
7 2
6 3
8
4 5
0 0
3
1 0
1 1
4
1 3
0 3
10
0 3
9 6
3
0 1
1 2
4
2 2
1 0
2
0 1
1 1
10
4 9
4 8
3
0 2
2 0
9
3 7
6 4
5
2 2
0 0
9
7 0
8 6
6
0 2
5 3
8
3 0
5 3
10
8 5
7 8
10
9 6
7 6
9
6 2
6 8
6
4 5
0 4
8
0 3
5 3
7
6 5
2 4
7
5 4
5 3
5
2 1
2 0
5
2 1
4 0
1
0 0
0 0
10
6 9
8 3
4
0 3
0 1
5
2 0
0 1
4
0 3
0 0
4
2 0
3 2
10
4 3
5 4
2
1 1
0 1
4
0 3
0 0
3
0 0
1 0
1
0 0
0 0
1
0 0
0 0
2
1 0
0 1
5
3 0
0 1
3
1 0
0 2
8
3 0
7 6
3
1 2
1 2
8
2 6
7 5
5
3 1
0 0
7
6 5
3 3
4
2 2
2 2
2
0 1
1 0
9
1 7
3 4
4
1 3
0 3
5
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