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Re:高手看下我写的2229有何问题啊!!In Reply To:高手看下我写的2229有何问题啊!! Posted by:920322696 at 2010-03-20 20:06:46 > #include"stdio.h" > long f(int n){ > if(n==1)return 1; > if(n==2)return 2; > if(n%2!=0)return f(n-1); > if(n%2==0){ > f(n)=f(n-2)+f(n/2); > return f(n); > } > } > void main(){ > int n; > scanf("%d",&n); > printf("%d",f(n)); > } 这样写是要超时的,我是开个数组用DP写的。 另:输出没有换行。 > f(n)=f(n-2)+f(n/2); > return f(n); f(n)好像不能作为左值,可以将上两行写成这样return f(n-2)+f(n/2); Followed by: Post your reply here: |
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