mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
77 lines
1.7 KiB
C++
77 lines
1.7 KiB
C++
# include<stdio.h>
|
|
# include<string.h>
|
|
# define N 600000
|
|
# define mod 1000000007
|
|
int n,m;
|
|
__int64 dp[2][N],sum;
|
|
char map[15][15][5];
|
|
int a[200],tag,flag;
|
|
int s[15];
|
|
void DFS(int r,int up,int down,int num,int right)
|
|
{
|
|
int xx,rr,yy,ll,i;
|
|
if(num==m)
|
|
{
|
|
if(r==0) dp[flag][down]+=tag;
|
|
else
|
|
{
|
|
dp[flag][down]+=dp[(flag+1)%2][up]*tag;
|
|
dp[flag][down]%=mod;
|
|
}
|
|
return;
|
|
}
|
|
for(i=1;i<4;i++)
|
|
if(map[r][num][i]!=map[r][num][0]) break;
|
|
if(i==4)
|
|
{
|
|
tag*=4;
|
|
xx=a[map[r][num][0]];
|
|
if(xx==right || right==-1) DFS(r,up*3+xx,down*3+xx,num+1,xx);
|
|
tag/=4;
|
|
return;
|
|
}
|
|
for(i=0;i<4;i++)
|
|
{
|
|
xx=a[map[r][num][i]];
|
|
rr=a[map[r][num][(i+1)%4]];
|
|
yy=a[map[r][num][(i+2)%4]];
|
|
ll=a[map[r][num][(i+3)%4]];
|
|
if(right==-1 || ll==right) DFS(r,up*3+xx,down*3+yy,num+1,rr);
|
|
}
|
|
}
|
|
int main()
|
|
{
|
|
int i,j,ncase,t;
|
|
scanf("%d",&ncase);
|
|
a['F']=0;
|
|
a['C']=1;
|
|
a['R']=2;
|
|
s[0]=1;
|
|
for(i=1;i<=12;i++)
|
|
s[i]=s[i-1]*3;
|
|
for(t=1;t<=ncase;t++)
|
|
{
|
|
scanf("%d%d",&n,&m);
|
|
for(i=0;i<n;i++)
|
|
for(j=0;j<m;j++)
|
|
scanf("%s",map[i][j]);
|
|
flag=0;
|
|
memset(dp,0,sizeof(dp));
|
|
for(i=0;i<n;i++)
|
|
{
|
|
tag=1;
|
|
flag=(flag+1)%2;
|
|
DFS(i,0,0,0,-1);
|
|
for(j=0;j<s[m];j++) dp[(flag+1)%2][j]=0;
|
|
}
|
|
sum=0;
|
|
for(i=0;i<s[m];i++)
|
|
{
|
|
sum+=dp[flag][i];
|
|
sum%=mod;
|
|
}
|
|
printf("Case %d: %I64d\n",t,sum);
|
|
}
|
|
return 0;
|
|
}
|