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Re:前人好办法。。PF

Posted by zzg at 2008-08-22 19:30:52 on Problem 2551
In Reply To:前人好办法。。PF Posted by:taoy at 2007-11-20 21:30:22
>    只用余数乘以10+1就可以了。。。
>     如:3 满足题意能除以它的最小数111 , 答案是3
>    分析:1%3*10+1=11  j = 1
>         11%3*10+1=21  j =2
>         21%3=0     j=3 
>    相当于:1%3 
>           11%3
>           111%3(因为高位的110%3=2 和11%3=2效果相同吗!!, 高位除的余数正好为上次模的结果。。所以只求余数*10+1就可以拉)
赞一个!!!!

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