Submission #1003445
Source Code Expand
using System;
using System.Text;
using System.Collections.Generic;
class Solve{
int H,W;
char[,] S;
public Solve(){}
StringBuilder sb;
public static int Main(){
new Solve().Run();
return 0;
}
void Run(){
sb = new StringBuilder();
Read();
Calc();
Console.Write(sb.ToString());
}
void Calc(){
long count = 1;
if(H%2 == 1){
for(int i=0;i*2+1<W;i++){
if(S[H/2,i] != S[H/2,W-1-i]){
count *= 2;
break;
}
}
}
if(W%2 == 1){
for(int i=0;i*2+1<H;i++){
if(S[i,W/2] != S[H-1-i,W/2]){
count *= 2;
break;
}
}
}
bool[,] b = new bool[H/2,W/2];
for(int i=0;i<H/2;i++){
for(int j=0;j<W/2;j++){
if(S[i,j] == S[H-1-i,j] && S[H-1-i,j] == S[H-1-i,W-1-j] && S[H-1-i,W-1-j] == S[i,W-1-j]){
b[i,j] = false;
}
else if((S[i,j] == S[H-1-i,j] && S[H-1-i,j] == S[H-1-i,W-1-j]) || (S[H-1-i,j] == S[H-1-i,W-1-j] && S[H-1-i,W-1-j] == S[i,W-1-j]) || (S[H-1-i,W-1-j] == S[i,W-1-j] && S[i,W-1-j] == S[i,j]) || (S[i,W-1-j] == S[i,j] && S[i,j] == S[H-1-i,j])){
b[i,j] = false;
count = count * 4 % Define.mod;
}
else if((S[i,j] == S[H-1-i,W-1-j] && S[H-1-i,j] == S[i,W-1-j]) || (S[i,j] == S[H-1-i,j] && S[H-1-i,W-1-j] == S[i,W-1-j]) || (S[i,j] == S[i,W-1-j] && S[H-1-i,j] == S[H-1-i,W-1-j])){
b[i,j] = false;
count = count * 6 % Define.mod;
}
else if(S[i,j] == S[H-1-i,j] || S[i,j] == S[i,W-1-j] || S[i,j] == S[H-1-i,W-1-j] || S[H-1-i,j] == S[H-1-i,W-1-j] || S[H-1-i,j] == S[i,W-1-j] || S[i,W-1-j] == S[H-1-i,W-1-j]){
b[i,j] = false;
count = count * 12 % Define.mod;
}
else{
b[i,j] = true;
count = count * 12 % Define.mod;
}
}
}
UnionFind U = new UnionFind(H/2+W/2);
for(int i=0;i<H/2;i++){
for(int j=0;j<W/2;j++){
if(b[i,j]){
U.Union(i,H/2+j);
}
}
}
int exp = 0;
for(int i=0;i<H/2+W/2;i++){
if(U.Get(i) == i){
exp += U.Num(i)-1;
}
}
for(int i=0;i<exp;i++){
count = count * 2 % Define.mod;
}
sb.Append(count+"\n");
}
void Read(){
string[] str = Console.ReadLine().Split(' ');
H = int.Parse(str[0]);
W = int.Parse(str[1]);
S = new char[H,W];
for(int i=0;i<H;i++){
string s = Console.ReadLine();
for(int j=0;j<W;j++){
S[i,j] = s[j];
}
}
}
}
class UnionFind{
int[] par;
int[] num;
public UnionFind(int n){
par = new int[n];
num = new int[n];
for(int i=0;i<n;i++){
par[i] = i;
num[i] = 1;
}
}
public int Num(int x){
return num[Get(x)];
}
public void Union(int x,int y){
int i = Get(x);
int j = Get(y);
if(i != j){
num[i] += num[j];
par[j] = i;
}
}
public bool Same(int x,int y){
return Get(x) == Get(y);
}
public int Get(int x){
if(x != par[x]){
par[x] = Get(par[x]);
}
return par[x];
}
}
public static class Define{
public const long mod = 1000000007;
}
Submission Info
Submission Time |
|
Task |
I - Reverse Grid |
User |
leign |
Language |
C# (Mono 4.6.2.0) |
Score |
1900 |
Code Size |
3877 Byte |
Status |
AC |
Exec Time |
24 ms |
Memory |
3216 KB |
Judge Result
Set Name |
sample |
all |
Score / Max Score |
0 / 0 |
1900 / 1900 |
Status |
|
|
Set Name |
Test Cases |
sample |
sample-01.txt, sample-02.txt |
all |
sample-01.txt, sample-02.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 01-11.txt, 01-12.txt, 01-13.txt, 01-14.txt, 01-15.txt, 01-16.txt, 01-17.txt, 01-18.txt, 01-19.txt, 01-20.txt, 01-21.txt, 01-22.txt, 01-23.txt, 01-24.txt, 01-25.txt, 01-26.txt, 01-27.txt, 01-28.txt, 01-29.txt, 01-30.txt, 01-31.txt, 01-32.txt, 01-33.txt, 01-34.txt, 01-35.txt |
Case Name |
Status |
Exec Time |
Memory |
01-01.txt |
AC |
22 ms |
2960 KB |
01-02.txt |
AC |
22 ms |
2960 KB |
01-03.txt |
AC |
22 ms |
2960 KB |
01-04.txt |
AC |
22 ms |
2960 KB |
01-05.txt |
AC |
22 ms |
2960 KB |
01-06.txt |
AC |
22 ms |
2960 KB |
01-07.txt |
AC |
22 ms |
2960 KB |
01-08.txt |
AC |
22 ms |
2960 KB |
01-09.txt |
AC |
22 ms |
2960 KB |
01-10.txt |
AC |
22 ms |
3216 KB |
01-11.txt |
AC |
23 ms |
3216 KB |
01-12.txt |
AC |
23 ms |
3216 KB |
01-13.txt |
AC |
23 ms |
3216 KB |
01-14.txt |
AC |
22 ms |
3088 KB |
01-15.txt |
AC |
22 ms |
3088 KB |
01-16.txt |
AC |
24 ms |
3216 KB |
01-17.txt |
AC |
23 ms |
3216 KB |
01-18.txt |
AC |
23 ms |
3216 KB |
01-19.txt |
AC |
23 ms |
3216 KB |
01-20.txt |
AC |
23 ms |
3216 KB |
01-21.txt |
AC |
24 ms |
3216 KB |
01-22.txt |
AC |
22 ms |
2960 KB |
01-23.txt |
AC |
23 ms |
3088 KB |
01-24.txt |
AC |
23 ms |
3216 KB |
01-25.txt |
AC |
23 ms |
3216 KB |
01-26.txt |
AC |
23 ms |
3216 KB |
01-27.txt |
AC |
22 ms |
2960 KB |
01-28.txt |
AC |
22 ms |
3088 KB |
01-29.txt |
AC |
22 ms |
2960 KB |
01-30.txt |
AC |
22 ms |
3088 KB |
01-31.txt |
AC |
23 ms |
3216 KB |
01-32.txt |
AC |
23 ms |
3216 KB |
01-33.txt |
AC |
23 ms |
3216 KB |
01-34.txt |
AC |
23 ms |
3216 KB |
01-35.txt |
AC |
24 ms |
3216 KB |
sample-01.txt |
AC |
22 ms |
2960 KB |
sample-02.txt |
AC |
22 ms |
2960 KB |