amark1235
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amark1235
cut({A, B, C}) = cut({A, B}) + cut({C}) - [cut({A,B}) ^cut({B}) ],这样才对吧,减去它俩的交集
cut({A, B, C}) = cut({A, B}) + cut({C}) - [cut({A,B}) ^cut({C}) ],这样才对吧,减去它俩的交集, 刚写错了