OJ-Problems-Source/HDOJ/3443_autoAC.cpp

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#include <cstdio>
#define LL __int64
int main()
{
LL x,k;
while(scanf("%I64d",&x)&&x){
k=1;
while(k<x)k=k*10+1;
k/=10;
while(x%k!=0)k/=10;
printf("%I64d\n",x/k);
}
return 0;
}