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按你的方法，我用c++做了一下，ac啦，不过有些还是不懂....

Posted by IceAngel at 2005-05-27 15:26:58 on Problem 1014
In Reply To:什么叫没有证明？自己到未名bbs看一下 Posted by:frkstyc at 2005-04-22 21:39:46

....
>                       begin
>                            if (j+k*i>mid) or opt[j+k*i] then break;
>                            opt[j+k*i]:=true;
>                       end;
....
if( j+k*i > mid ) then break
这我知道，
为什么
if( opt[j+k*i] ) then break

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