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这道题我的思想是先求出上下的覆盖关系 然后拓扑加全排列就OK了 下面是一组数据及其答案 10 10 ....CCC... ....C.C... .BBBB.C... .B..BCCEEE .B..B..E.E GGGBBDDE.E G.G.D.DEEE G.G.DDD... GGG....... .......... CDBEG CDBGE CDEBG CEDBG DCBEG DCBGE DCEBG DECBG ECDBG EDCBG Followed by: Post your reply here: |
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