| [ QuizWit ] in KIDS 글 쓴 이(By): guest (sol) <schroeder.kaist.> 날 짜 (Date): 2001년 10월 25일 목요일 오후 02시 25분 46초 제 목(Title): packing problem Consider 7 cubes of euqal size arranged as follows. Place 5 cubes so that they form a Swiss cross or a +(plus) (4 cubes on the sides and 1 in the middle). Now place one cube top of the middle cube and the seventh below the middle cube, to effectively form a 3-dimensional Swiss cross. Can a number of such blocks (of 7 cubes each) be arranged so that they are able to completely fill up a big cube( say 10 times the size of the small cubes)? It is all right if these blocks project out of the big cube, but there should be no holes or gaps. |