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Re:把5、8、5这个长度分别锯下来。。不是最优结果21么。。额。。想不懂。。

Posted by chenbowen at 2014-09-17 19:35:21 on Problem 3253
In Reply To:把5、8、5这个长度分别锯下来。。不是最优结果21么。。额。。想不懂。。 Posted by:671superone at 2013-12-18 09:58:24 
> 没弄懂题意。。求解答啊~~~~
是这样，最开始是要把总长度为21的木条锯成5、8、8，每一步都要把当前要锯的木条总长加进去，所以是
34 = 21（13+5）+ 13（5+8）

不知道你懂了没有。
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