Files
OI-source/2.12105.cpp
2023-08-03 09:22:52 +08:00

50 lines
816 B
C++

#include<cstdio>
using namespace std;
const int maxn=105;
const int maxm=3005;
const int needs[]={6,2,5,5,4,5,6,3,7,6};
int n,m,kase;
int dp[maxn][maxm];
int p[maxn][maxm];
int main()
{
#ifdef local
freopen("pro.in","r",stdin);
#endif
while(scanf("%d",&n)==1&&n)
{
scanf("%d",&m);
printf("Case %d: ",++kase);
for(int i=0;i<=n;i++)
for(int j=0;j<m;j++)
{
int &ans=dp[i][j];
ans=p[i][j]=-1;//init
if(!j) ans=0;
for(int d=9;d>=0;d--)
if(i>=needs[d])
{
int t=dp[i-needs[d]][(j*10+d)%m];
if(t>=0&&t+1>ans)
{
ans=t+1;
p[i][j]=d;
}
}
}
if(p[n][0]==-1) printf("-1\n");
else
{
int i=n,j=0;
for(int d=p[i][j];d>=0;d=p[i][j])
{
printf("%d",d);
i-=needs[d];
j=(j*10+d)%m;
}
printf("\n");
}
}
return 0;
}