http://acm.hdu.edu.cn/showproblem.php?pid=4541
打表找规律
#include <cstdio>
#include <cstring>
#include <algorithm>
using namespace std; int t;
int n,m;
int a[][]={{, , , , },{, , , , },{, , , , , , },{, , , , , , },{, , , }, {,, ,, , , , , , , , , ,}, {, , , , , , , , , , , , , , , , , , , , , ,, }}; int main()
{
scanf("%d",&t);
int cas=;
while(t--)
{
scanf("%d%d",&n,&m);
printf("Case #%d: ",cas++);
if(m>a[n-][])
{
printf("-1\n");
}
else if(n==&&m==)
{
printf("10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\n");
}
else if(n==&&m==)
{
printf("20000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\n");
}
else if(n==&&m==)
{
printf("60000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\n");
}
else if(n==&&m==)
{
printf("100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\n");
}
else
{
printf("%d\n",a[n-][m]);
}
}
return ;
}