• https://www.luogu.com.cn/problem/P1933

经典插头 dp，但是和传统的一条路径问题相比，我们还需要压缩进轮廓线上位置的标号，还要维护插头的方向（递增还是递降），然后关键是插头的方向信息在 m=3 的情况下，是可以客串连通性信息的，这样可以把插头控制在 int 范围里（恰好 32 位，注意用 uint。）

/*
    Last Weapon is my own algorithms library for competitive programming, it is a fork from ACL with some alternative algorithms and additional features. Use it at your own risk.
    Repo: https://github.com/lychees/last-weapon
    Blog: https://www.shuizilong.com/house
*/
#pragma comment(linker, "/STACK:36777216")
#define LOCAL
#include <functional>
#include <algorithm>
#include <iostream>
#include <fstream>
#include <sstream>
#include <iomanip>
#include <numeric>
#include <cstring>
#include <climits>
#include <cassert>
#include <complex>
#include <cstdio>
#include <string>
#include <vector>
#include <bitset>
#include <queue>
#include <stack>
#include <cmath>
#include <ctime>
#include <list>
#include <set>
#include <map>


using namespace std;

#define REP(i, n) for (int i=0;i<n;++i)
#define FOR(i, a, b) for (int i=a;i<b;++i)
#define DWN(i, b, a) for (int i=b-1;i>=a;--i)
#define REP_1(i, n) for (int i=1;i<=n;++i)
#define FOR_1(i, a, b) for (int i=a;i<=b;++i)
#define DWN_1(i, b, a) for (int i=b;i>=a;--i)

#define ECH(it, A) for (__typeof((A).begin()) it=(A).begin(); it != (A).end(); ++it)
#define rECH(it, A) for (__typeof((A).rbegin()) it=(A).rbegin(); it != (A).rend(); ++it)
#define REP_S(i, str) for (char*i=str;*i;++i)
#define REP_L(i, hd, suc) for (int i=hd;i;i=suc[i])
#define REP_G(i, u) REP_L(i,hd[u],suc)
#define REP_SS(x, s) for (int x=s;x;x=(x-1)&s)
#define DO(n) for ( int ____n = n; ____n-->0; )

#define ALL(A) A.begin(), A.end()
#define LLA(A) A.rbegin(), A.rend()
#define CPY(A, B) memcpy(A, B, sizeof(A))
#define INS(A, P, B) A.insert(A.begin() + P, B)
#define ERS(A, P) A.erase(A.begin() + P)
#define LBD(A, x) (lower_bound(ALL(A), x) - A.begin())
#define UBD(A, x) (upper_bound(ALL(A), x) - A.begin())
#define CTN(T, x) (T.find(x) != T.end())
#define SZ(A) int((A).size())
#define PB push_back
#define MP(A, B) make_pair(A, B)
#define PTT pair<T, T>
#define Ts *this
#define rTs return Ts
#define fi first
#define se second
#define re real()
#define im imag()

#define Rush for(int ____T=RD(); ____T--;)
#define Display(A, n, m) {                      \
  REP(i, n){		                            \
        REP(j, m-1) cout << A[i][j] << " ";     \
        cout << A[i][m-1] << endl;		        \
	}						                    \
}
#define Display_1(A, n, m) {                    \
	REP_1(i, n){		                        \
        REP_1(j, m-1) cout << A[i][j] << " ";   \
        cout << A[i][m] << endl;		        \
	}						                    \
}

typedef long long LL;
typedef double DB;
typedef unsigned uint;
typedef unsigned long long uLL;

typedef vector<int> VI;
typedef vector<char> VC;
typedef vector<string> VS;
typedef vector<LL> VL;
typedef vector<DB> VF;
typedef set<int> SI;
typedef set<string> SS;
typedef map<int, int> MII;
typedef map<string, int> MSI;
typedef pair<int, int> PII;
typedef pair<LL, LL> PLL;
typedef vector<PII> VII;
typedef vector<VI> VVI;
typedef vector<VII> VVII;

template<class T> inline T& RD(T &);
template<class T> inline void OT(const T &);
inline LL RD(){LL x; return RD(x);}
inline DB& RF(DB &);
inline DB RF(){DB x; return RF(x);}
inline char* RS(char *s);
inline char& RC(char &c);
inline char RC();
inline char& RC(char &c){scanf(" %c", &c); return c;}
inline char RC(){char c; return RC(c);}

template<class T0, class T1> inline T0& RD(T0 &x0, T1 &x1){RD(x0), RD(x1); return x0;}
template<class T0, class T1, class T2> inline T0& RD(T0 &x0, T1 &x1, T2 &x2){RD(x0), RD(x1), RD(x2); return x0;}
template<class T0, class T1, class T2, class T3> inline T0& RD(T0 &x0, T1 &x1, T2 &x2, T3 &x3){RD(x0), RD(x1), RD(x2), RD(x3); return x0;}
template<class T0, class T1, class T2, class T3, class T4> inline T0& RD(T0 &x0, T1 &x1, T2 &x2, T3 &x3, T4 &x4){RD(x0), RD(x1), RD(x2), RD(x3), RD(x4); return x0;}
template<class T0, class T1, class T2, class T3, class T4, class T5> inline T0& RD(T0 &x0, T1 &x1, T2 &x2, T3 &x3, T4 &x4, T5 &x5){RD(x0), RD(x1), RD(x2), RD(x3), RD(x4), RD(x5); return x0;}
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6> inline T0& RD(T0 &x0, T1 &x1, T2 &x2, T3 &x3, T4 &x4, T5 &x5, T6 &x6){RD(x0), RD(x1), RD(x2), RD(x3), RD(x4), RD(x5), RD(x6); return x0;}
template<class T0, class T1> inline void OT(const T0 &x0, const T1 &x1){OT(x0), OT(x1);}
template<class T0, class T1, class T2> inline void OT(const T0 &x0, const T1 &x1, const T2 &x2){OT(x0), OT(x1), OT(x2);}
template<class T0, class T1, class T2, class T3> inline void OT(const T0 &x0, const T1 &x1, const T2 &x2, const T3 &x3){OT(x0), OT(x1), OT(x2), OT(x3);}
template<class T0, class T1, class T2, class T3, class T4> inline void OT(const T0 &x0, const T1 &x1, const T2 &x2, const T3 &x3, const T4 &x4){OT(x0), OT(x1), OT(x2), OT(x3), OT(x4);}
template<class T0, class T1, class T2, class T3, class T4, class T5> inline void OT(const T0 &x0, const T1 &x1, const T2 &x2, const T3 &x3, const T4 &x4, const T5 &x5){OT(x0), OT(x1), OT(x2), OT(x3), OT(x4), OT(x5);}
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6> inline void OT(const T0 &x0, const T1 &x1, const T2 &x2, const T3 &x3, const T4 &x4, const T5 &x5, const T6 &x6){OT(x0), OT(x1), OT(x2), OT(x3), OT(x4), OT(x5), OT(x6);}
inline char& RC(char &a, char &b){RC(a), RC(b); return a;}
inline char& RC(char &a, char &b, char &c){RC(a), RC(b), RC(c); return a;}
inline char& RC(char &a, char &b, char &c, char &d){RC(a), RC(b), RC(c), RC(d); return a;}
inline char& RC(char &a, char &b, char &c, char &d, char &e){RC(a), RC(b), RC(c), RC(d), RC(e); return a;}
inline char& RC(char &a, char &b, char &c, char &d, char &e, char &f){RC(a), RC(b), RC(c), RC(d), RC(e), RC(f); return a;}
inline char& RC(char &a, char &b, char &c, char &d, char &e, char &f, char &g){RC(a), RC(b), RC(c), RC(d), RC(e), RC(f), RC(g); return a;}
inline DB& RF(DB &a, DB &b){RF(a), RF(b); return a;}
inline DB& RF(DB &a, DB &b, DB &c){RF(a), RF(b), RF(c); return a;}
inline DB& RF(DB &a, DB &b, DB &c, DB &d){RF(a), RF(b), RF(c), RF(d); return a;}
inline DB& RF(DB &a, DB &b, DB &c, DB &d, DB &e){RF(a), RF(b), RF(c), RF(d), RF(e); return a;}
inline DB& RF(DB &a, DB &b, DB &c, DB &d, DB &e, DB &f){RF(a), RF(b), RF(c), RF(d), RF(e), RF(f); return a;}
inline DB& RF(DB &a, DB &b, DB &c, DB &d, DB &e, DB &f, DB &g){RF(a), RF(b), RF(c), RF(d), RF(e), RF(f), RF(g); return a;}
inline void RS(char *s1, char *s2){RS(s1), RS(s2);}
inline void RS(char *s1, char *s2, char *s3){RS(s1), RS(s2), RS(s3);}

template<class T> inline void RST(T &A){memset(A, 0, sizeof(A));}
template<class T> inline void FLC(T &A, int x){memset(A, x, sizeof(A));}
template<class T> inline void CLR(T &A){A.clear();}

template<class T0, class T1> inline void RST(T0 &A0, T1 &A1){RST(A0), RST(A1);}
template<class T0, class T1, class T2> inline void RST(T0 &A0, T1 &A1, T2 &A2){RST(A0), RST(A1), RST(A2);}
template<class T0, class T1, class T2, class T3> inline void RST(T0 &A0, T1 &A1, T2 &A2, T3 &A3){RST(A0), RST(A1), RST(A2), RST(A3);}
template<class T0, class T1, class T2, class T3, class T4> inline void RST(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4){RST(A0), RST(A1), RST(A2), RST(A3), RST(A4);}
template<class T0, class T1, class T2, class T3, class T4, class T5> inline void RST(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5){RST(A0), RST(A1), RST(A2), RST(A3), RST(A4), RST(A5);}
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6> inline void RST(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5, T6 &A6){RST(A0), RST(A1), RST(A2), RST(A3), RST(A4), RST(A5), RST(A6);}
template<class T0, class T1> inline void FLC(T0 &A0, T1 &A1, int x){FLC(A0, x), FLC(A1, x);}
template<class T0, class T1, class T2> inline void FLC(T0 &A0, T1 &A1, T2 &A2, int x){FLC(A0, x), FLC(A1, x), FLC(A2, x);}
template<class T0, class T1, class T2, class T3> inline void FLC(T0 &A0, T1 &A1, T2 &A2, T3 &A3, int x){FLC(A0, x), FLC(A1, x), FLC(A2, x), FLC(A3, x);}
template<class T0, class T1, class T2, class T3, class T4> inline void FLC(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, int x){FLC(A0, x), FLC(A1, x), FLC(A2, x), FLC(A3, x), FLC(A4, x);}
template<class T0, class T1, class T2, class T3, class T4, class T5> inline void FLC(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5, int x){FLC(A0, x), FLC(A1, x), FLC(A2, x), FLC(A3, x), FLC(A4, x), FLC(A5, x);}
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6> inline void FLC(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5, T6 &A6, int x){FLC(A0, x), FLC(A1, x), FLC(A2, x), FLC(A3, x), FLC(A4, x), FLC(A5, x), FLC(A6, x);}
template<class T> inline void CLR(priority_queue<T> &Q){while (!Q.empty()) Q.pop();}
template<class T> inline void CLR(stack<T> &S){while (!S.empty()) S.pop();}
template<class T> inline void CLR(queue<T> &Q){while (!Q.empty()) Q.pop();}

template<class T0, class T1> inline void CLR(T0 &A0, T1 &A1){CLR(A0), CLR(A1);}
template<class T0, class T1, class T2> inline void CLR(T0 &A0, T1 &A1, T2 &A2){CLR(A0), CLR(A1), CLR(A2);}
template<class T0, class T1, class T2, class T3> inline void CLR(T0 &A0, T1 &A1, T2 &A2, T3 &A3){CLR(A0), CLR(A1), CLR(A2), CLR(A3);}
template<class T0, class T1, class T2, class T3, class T4> inline void CLR(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4){CLR(A0), CLR(A1), CLR(A2), CLR(A3), CLR(A4);}
template<class T0, class T1, class T2, class T3, class T4, class T5> inline void CLR(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5){CLR(A0), CLR(A1), CLR(A2), CLR(A3), CLR(A4), CLR(A5);}
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6> inline void CLR(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5, T6 &A6){CLR(A0), CLR(A1), CLR(A2), CLR(A3), CLR(A4), CLR(A5), CLR(A6);}
template<class T> inline void CLR(T &A, int n){REP(i, n) CLR(A[i]);}

template<class T> inline bool EPT(T &a){return a.empty();}
template<class T> inline T& SRT(T &A){sort(ALL(A)); return A;}
template<class T, class C> inline T& SRT(T &A, C cmp){sort(ALL(A), cmp); return A;}
template<class T> inline T& RVS(T &A){reverse(ALL(A)); return A;}
template<class T> inline T& UNQQ(T &A){A.resize(unique(ALL(A))-A.begin());return A;}
template<class T> inline T& UNQ(T &A){SRT(A);return UNQQ(A);}
template<class T, class C> inline T& UNQ(T &A, C cmp){SRT(A, cmp);return UNQQ(A);}



/** Constant List .. **/ //{

int MOD = int(1e9) + 7;
const int INF = 0x3f3f3f3f;
const LL INFF = 0x3f3f3f3f3f3f3f3fLL;
const DB EPS = 1e-9;
const DB OO = 1e20;
const DB PI = acos(-1.0); //M_PI;

const int dx[] = {-1, 1, 0, 0};
const int dy[] = {0, 0, 1, -1};


/** Add On .. **/ //{

template<class T> inline bool checkMin(T &a,const T b){return b < a ? a = b, 1 : 0;}
template<class T> inline bool checkMax(T &a,const T b){return a < b ? a = b, 1 : 0;}
template <class T, class C> inline bool checkUpd(T& a, const T b, C c){return c(b,a) ? a = b, 1 : 0;}
template<class T> inline T min(T a, T b, T c){return min(min(a, b), c);}
template<class T> inline T max(T a, T b, T c){return max(max(a, b), c);}
template<class T> inline T min(T a, T b, T c, T d){return min(min(a, b), min(c, d));}
template<class T> inline T max(T a, T b, T c, T d){return max(max(a, b), max(c, d));}
template<class T> inline T sqr(T a){return a*a;}
template<class T> inline T cub(T a){return a*a*a;}
template<class T> inline T ceil(T x, T y){return (x - 1) / y + 1;}
template<class T> T abs(T x){return x>0?x:-x;}
inline int sgn(DB x){return x < -EPS ? -1 : x > EPS;}
inline int sgn(DB x, DB y){return sgn(x - y);}

template<typename T1, typename T2> istream& operator>>(istream& in, pair<T1, T2>& a) {
    in >> a.fi >> a.se;
    return in;
}
template<typename T, size_t N> istream& operator>>(istream& in, array<T, N>& a) {
    REP(i, N) cin >> a[i];
    return in;
}
template<typename T> istream& operator>>(istream& in, vector<T>& a) {
    REP(i, SZ(a)) in >> a[i];
    return in;
}
template<typename T1, typename T2> ostream& operator<<(ostream& out, pair<T1, T2>& a) {
    out << a.fi << " " << a.se;
    return out;
}
template<typename T, size_t N> ostream& operator<<(ostream& out, array<T, N>& a) {
    REP(i, N-1) out << a[i] << " "; if (N) out << a.back();
    return out;
}
template<typename T> ostream& operator<<(ostream& out, vector<T>& a) {
    REP(i, SZ(a)-1) out << a[i] << " "; if (SZ(a)) out << a.back();
    return out;
}





/** I/O Accelerator Interface .. **/ //{
#define g (c=getchar())
#define d isdigit(g)
#define p x=x*10+c-'0'
#define n x=x*10+'0'-c
#define pp l/=10,p
#define nn l/=10,n
template<class T> inline T& RD(T &x){
    char c;while(g,c!='-'&&!isdigit(c));
    if (c=='-'){x='0'-g;while(d)n;}
    else{x=c-'0';while(d)p;}
    return x;
}
inline DB& RF(DB &x){
    char c;while(g,c!='-'&&c!='.'&&!isdigit(c));
    if(c=='-')if(g=='.'){x=0;DB l=1;while(d)nn;x*=l;}
        else{x='0'-c;while(d)n;if(c=='.'){DB l=1;while(d)nn;x*=l;}}
    else if(c=='.'){x=0;DB l=1;while(d)pp;x*=l;}
        else{x=c-'0';while(d)p;if(c=='.'){DB l=1;while(d)pp;x*=l;}}
    return x;
}
#undef nn
#undef pp
#undef n
#undef p
#undef d
#undef g
inline char* RS(char *s){
    scanf("%s", s);
    return s;
}

LL last_ans; int Case; template<class T> inline void OT(const T &x){
    cout << x << endl;
}
namespace lastweapon {}
namespace lastweapon {

namespace NT{
inline LL gcd(LL a, LL b){return b?gcd(b,a%b):a;}
inline LL lcm(LL a, LL b){return a*b/gcd(a,b);}

inline void INC(int &a, int b){a += b; if (a >= MOD) a -= MOD;}
inline int sum(int a, int b){a += b; if (a >= MOD) a -= MOD; return a;}

inline void DEC(int &a, int b){a -= b; if (a < 0) a += MOD;}
inline int dff(int a, int b){a -= b; if (a < 0) a  += MOD; return a;}
inline void MUL(int &a, int b){a = (LL)a * b % MOD;}
inline int pdt(int x,int y) {
    int ret; __asm__ __volatile__ ("\tmull %%ebx\n\tdivl %%ecx\n":"=d"(ret):"a"(x),"b"(y),"c"(MOD));
    return ret;
}


inline int gcd(int m, int n, int &x, int &y){

    x = 1, y = 0; int xx = 0, yy = 1, q;

    while (1){
        q = m / n, m %= n;
        if (!m){x = xx, y = yy; return n;}
        DEC(x, pdt(q, xx)), DEC(y, pdt(q, yy));
        q = n / m, n %= m;
        if (!n) return m;
        DEC(xx, pdt(q, x)), DEC(yy, pdt(q, y));
    }
}

inline int sum(int a, int b, int c){return sum(a, sum(b, c));}
inline int sum(int a, int b, int c, int d){return sum(sum(a, b), sum(c, d));}
inline int pdt(int a, int b, int c){return pdt(a, pdt(b, c));}
inline int pdt(int a, int b, int c, int d){return pdt(pdt(a, b), pdt(c, d));}

inline int pow(int a, LL b){
    int c(1); while (b){
        if (b&1) MUL(c, a);
        MUL(a, a), b >>= 1;
    }
    return c;
}

template<class T> inline T pow(T a, LL b){
    T c(1); while (b){
        if (b&1) c *= a;
        a *= a, b >>= 1;
    }
    return c;
}

template<class T> inline T pow(T a, int b){
    return pow(a, (LL)b);
}

inline int _I(int b){
    int a = MOD, x1 = 0, x2 = 1, q; while (1){
        q = a / b, a %= b;
        if (!a) return x2;
        DEC(x1, pdt(q, x2));

        q = b / a, b %= a;
        if (!b) return x1;
        DEC(x2, pdt(q, x1));
    }
}

inline void DIV(int &a, int b){MUL(a, _I(b));}
inline int qtt(int a, int b){return pdt(a, _I(b));}

struct Int{
    int val;

    operator int() const{return val;}

    Int(int _val = 0):val(_val){
        val %= MOD; if (val < 0) val += MOD;
    }
    Int(LL _val):val(_val){
        _val %= MOD; if (_val < 0) _val += MOD;
        val = _val;
    }

    Int& operator +=(const int& rhs){INC(val, rhs);rTs;}
    Int operator +(const int& rhs) const{return sum(val, rhs);}
    Int& operator -=(const int& rhs){DEC(val, rhs);rTs;}
    Int operator -(const int& rhs) const{return dff(val, rhs);}
    Int& operator *=(const int& rhs){MUL(val, rhs);rTs;}
    Int operator *(const int& rhs) const{return pdt(val, rhs);}
    Int& operator /=(const int& rhs){DIV(val, rhs);rTs;}
    Int operator /(const int& rhs) const{return qtt(val, rhs);}
    Int operator-()const{return MOD-*this;}
};

} using namespace NT;//}

}  // namespace lastweapon

#include <bits/stdc++.h>
using namespace lastweapon;

// 256 = 2^8 * 3
// 3*4 = 12

const int N = 50, M = 3;
const int offset = 2, mask = (1 << offset) - 1, offset2 = 8, mask2 = (1 << offset2) - 1;
int A[N][M], B[N*M];
int n, m, d;
const int MaxSZ = 186796, Prime = 109973;

struct hashTable
{
    int head[Prime], next[MaxSZ], sz;
    uint state[MaxSZ];
    int key[MaxSZ];

    void clear()
    {
        sz = 0;
        memset(head, -1, sizeof(head));
    }

    void push(uint s)
    {
        int x = s % Prime;
        for (int i = head[x]; ~i; i = next[i])
        {
            if (state[i] == s)
            {
                key[i] += d; if (key[i] > MOD) key[i] -= MOD;
                return;
            }
        }
        state[sz] = s, key[sz] = d;
        next[sz] = head[x];
        head[x] = sz++;
    }

    void roll()
    {
        for (int i = 0; i < sz; i++) {
            int s0 = state[i] & ((1 << (offset2*m)) - 1), s1 = state[i] ^ s0;
            state[i] = (s1 << offset) | s0;
        }
    }
} H[2][3], *H0, *H1;

int b[M + 1];
int b2[M];

int encode()
{
    uint s = 0;
    for (int i = m; i >= 0; --i)
    {
        s <<= offset;
        s |= b[i];
    }

    for (int i = m-1; i >= 0; --i)
    {
        s <<= offset2;
        s |= b2[i];
    }
    return s;
}

void decode(uint s)
{
    for (int i = 0; i < m; i++)
    {
        b2[i] = s & mask2;
        s >>= offset2;
    }
    for (int i = 0; i < m + 1; i++)
    {
        b[i] = s & mask;
        s >>= offset;
    }
}

bool onTheEdge(int x, int y) {
    return !x || !y || (x == n-1) || (y == m-1);
}

int i, j;
void push(int c, int j, int dn, int rt, int o)
{
    if (o < 0 || n*m <= o) return;
    if (!o && !onTheEdge(i, j)) return;
    if (A[i][j] != B[o]) return;

    b[j] = dn; b[j + 1] = rt; b2[j] = o;

    H1[c].push(encode());
}

void init()
{
    cin >> n >> m; swap(n, m);
    H0 = H[0], H1 = H[1]; for (int c = 0; c < 3; c++) H1[c].clear();

    for (int j = 0; j < m; j++)
        for (int i = 0; i < n; i++) cin >> A[i][j];

    REP(i, n*m) RD(B[i]);
}

Int solve()
{

    if (n == 1 & m == 1) { // 特判
        return A[0][0] = B[0];
    }


    d = 1; H1[0].push(encode());

    for (i = 0; i < n; i++)
    {
        for (j = 0; j < m; j++)
        {

            swap(H0, H1);
            for (int c = 0; c < 3; c++)
                H1[c].clear();  // c 表示生成和消失事件发生的总次数，最多不超过 2 次

            for (int c = 0; c < 3; c++)
                for (int ii = 0; ii < H0[c].sz; ii++)
                {
                    decode(H0[c].state[ii]);
                    d = H0[c].key[ii];

                    //cout << i << " " << j << " " << d << ": " << endl;
                    //REP(i, m) cout << b2[i] << " "; cout << endl;
                    //REP(i, m+1) cout << b[i] << " "; cout << endl;


                    int lt = b[j], up = b[j + 1];
                    bool dn = i != n-1, rt = j != m-1;
                    if (lt && up)
                    {
                        if (lt == up)    // 在一条路径问题中，我们不能合并相同的插头。
                        {
                            // Cannot deploy here...
                        }
                        else      // 有可能参与合并的两者中有独立插头，但是也可以用同样的代码片段处理
                        {
                            //for (int i = 0; i < m + 1; i++) if (b[i] == lt) b[i] = up;
                            if ((b2[j-1] + 2 == b2[j] && lt == 1 && up == 2) || (b2[j] + 2 == b2[j-1] && up == 1 && lt == 2)) {
                                push(c, j, 0, 0, (b2[j] + b2[j-1])/2);
                            }
                        }
                    }
                    else if (lt || up)
                    {
                        int t = lt | up;

                        int o = lt ? b2[j-1] : b2[j];

                        if (dn)
                        {
                            if (t == 1) push(c, j, t, 0, o+1);
                            else push(c, j, t, 0, o-1);
                        }
                        if (rt)
                        {
                            if (t == 1) push(c, j, 0, t, o+1);
                            else push(c, j, 0, t, o-1);
                        }
                        // 一个插头消失的情况，如果是独立插头则意味着消失，如果是成对出现的插头则相当于生成了一个独立插头，
                        // 无论哪一类事件都需要将 c + 1。
                        if (c < 2)
                        {
                            if (o == 1 && t == 2) push(c + 1, j, 0, 0, 0);
                            else if (o == n*m-2 && t == 1) push(c + 1, j, 0, 0, n*m-1);
                        }
                    }
                    else
                    {
                        if (dn && rt)    // 生成一对插头
                        {
                            FOR(o, 1, n*m-1) {
                                push(c, j, 1, 2, o);
                                push(c, j, 2, 1, o);
                            }
                        }
                        if (c < 2)    // 生成一个独立插头
                        {
                            //cout << dn << " " << rt << "???" << " " << onTheEdge(i, j) << endl;

                            if (dn)
                            {
                                push(c + 1, j, 1, 0, 0);
                                push(c + 1, j, 2, 0, n*m-1);
                            }
                            if (rt)
                            {
                                push(c + 1, j, 0, 1, 0);
                                push(c + 1, j, 0, 2, n*m-1);
                            }
                        }
                    }
                }
        }
        for (int c = 0; c < 3; c++) H1[c].roll();  // 一行结束，调整轮廓线
    }

    LL ans = 0; for (int ii = 0; ii < H1[2].sz; ii++) ans += H1[2].key[ii];
    return ans % MOD;
}

int main() {

#ifndef ONLINE_JUDGE
    freopen("in.txt", "r", stdin);
    //freopen("/Users/minakokojima/Documents/GitHub/ACM-Training/Workspace/out.txt", "w", stdout);
#endif


    MOD = 11192869;
    init();
    cout << solve() << endl;
}

Posted by xiaodao
Category: 日常