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大牛们是如何想出构造的??偶至今还没有想明白呀!!!!!

Posted by ecjtubaowp at 2007-06-18 22:50:37 on Problem 3239
In Reply To:Re:谁能讲讲构造法的原理....或者给个资料也好...糊里糊涂过了.... Posted by:ecjtuwh at 2007-06-18 22:41:05 
> 
> 能把公式给出来吗? 不要给个构造解啊!
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