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Re:关于1144…………In Reply To:关于1144………… Posted by:rruucc at 2003-05-28 13:14:17 > 1144我当时用一般的算法来做(大多数人用那种,不必多说了),复杂度是O(N*N),结果开始时是WA,想了很长时间也想不出原因。题目的意思应该就是求割顶的个数吧…… > > 然后用标程提交,就对了……………… > > 标程好象是用图的DFS再加上LOW函数来求割顶…… > 这题我还找到了标准的测试数据,亲手画了一个有问题的数据,结果发现标准测试数据确实有问题(如果题目没有理解错的话) 在这贴上两个: > error1: > 21 > 17 4 18 > 1 11 > 7 5 > 13 1 > 3 1 > 14 5 > 15 20 > 9 12 > 6 8 > 16 14 > 18 8 > 8 4 > 20 18 10 > 2 3 > 12 5 > 5 9 20 > 19 20 9 11 2 > 11 3 > 4 15 > 10 3 > 21 3 > 0 > standard:5 > answer:6 > they are 1 3 5 8 14 20 (这个是我画了的) > > error2: > 63 > 30 11 33 52 9 25 47 28 59 29 32 18 7 35 > 51 15 > 19 47 25 > 32 27 > 9 46 > 7 59 > 13 53 > 35 17 > 6 2 > 63 21 35 > 52 40 > 4 58 > 27 61 > 43 54 > 49 16 > 11 44 > 25 57 > 60 54 > 21 35 > 23 41 50 11 2 25 3 > 59 1 > 33 41 15 > 53 57 > 22 62 > 57 19 > 34 7 > 44 46 39 57 > 48 29 3 > 47 48 > 18 29 25 > 10 38 > 62 25 > 56 23 8 62 46 30 6 44 43 60 29 45 26 > 3 6 > 40 12 31 > 38 45 22 > 8 11 43 13 49 18 > 14 49 > 55 10 > 5 49 > 28 3 14 61 20 24 > 54 35 > 29 5 > 46 31 > 45 44 > 17 54 19 > 39 61 58 2 26 > 61 37 > 1 52 58 > 12 62 31 56 43 28 61 > 36 12 > 58 44 > 26 29 > 31 3 > 50 52 6 28 > 16 10 51 25 > 20 54 47 13 29 4 6 44 52 32 53 39 57 3 > 42 48 > 0 > standard:6 > answer:7 > they are 7 10 12 28 35 48 61 Followed by:
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