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北大的标准答案有问题: 路过此处的朋友请注意

Posted by sui1999 at 2011-09-01 09:56:31 on Problem 1122
3

0 -1 -1
1 -1 -1
2 1  -1

1 1 2 3

正确答案是:
1 1 2 3
Org     Dest    Time    Path
1       1       0       1
2       1       1       2       1
3       1       2       3       1
3       1       2       3       2       1

北大的答案不包括多个路径情况:
1 1 2 3
Org     Dest    Time    Path
1       1       0       1
2       1       1       2       1
3       1       2       3       1

所有找不到错误的朋友可能不是自己写错了

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