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7幂集问题\管材切割\递归遍历\Pipe.cpp
.........\........\........\Pipe.h
.........\........\........\Test.cpp
.........\........\........\Test.dsp
.........\........\........\Test.dsw
.........\........\........\Test.ncb
.........\........\........\Test.opt
.........\........\........\Test.plg
.........\........\递归遍历
.........\管材切割
7幂集问题