OJ-Problems-Source/HDOJ/3184_autoAC.cpp
2016-09-01 20:51:58 +08:00

59 lines
1.3 KiB
C++

#include <iostream>
#include <cstdio>
using namespace std;
int main()
{
int t;
int T,b;
int ans;
scanf("%d",&t);
while(t--)
{
scanf("%d %d",&T,&b);
ans = 0;
if(90 % b)
{
cout<<"Impossible!"<<endl;
}
else
{
if(T == 1 )
{
for(int i=9; i>=1; i--)
{
if(i % b == 0)
{
ans = i;
break;
}
}
if(ans)
{
cout<<ans<<endl;
}
else
{
cout<<"Impossible!"<<endl;
}
}
else
{
for(int i=99; i>=10; i--)
{
if(i % b == 0)
{
ans = i;
break;
}
}
for(int k=3; k<=T; k++)
{
cout<<"9";
}
cout<<ans<<endl;
}
}
}
return 0;
}