作者angel0527 (angel0527)
站内NTUMath92
标题[问题] 问一题数学~急!
时间Tue Oct 3 01:43:21 2006
comsider the 2^19 composition of20.{a}how many have each summand
even?{b}how many have each summand a multiple of4?
关於composition，基本上指的是加法的组合..............
感激各位大大罗!!
谢~~
顺便讲一下~~
书名是~~~
discrete and combinatorial mathematic
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