【提高组】

P1312 Mayan游戏

一道魔鬼大模拟qwq我放弃啦

#写出这种模拟还是等下辈子吧

#include
using namespace std;
struct G {
    int maps[10][10];
};
int n;
G now;
G last[10];
int dir[4][2] = {{1,0},{0,1},{-1,0},{0,-1}};
struct Info {
    int x,y;
    int flag;

    Info(int dx,int dy,int flag) {
        x = dx;
        y = dy;
        this->flag = flag;
    }
    Info(){
    }
};
Info steps[10];
int cnt = 0;
bool visited[10][10];
bool checkp(int x,int y) {
    if (x>=0&&y>=0&&x<5&&y<7&&!visited[x][y]&&now.maps[x][y])
        return true;
    return false;
}
bool marks[10][10];
bool updates[10][10];
int maxx,maxy;
int minx,miny; 
inline void dfsupdate(int x,int y,int dire,int d) {
    visited[x][y] = true;
    maxx = max(maxx,x);
    minx = min(minx,x);
    maxy = max(maxy,y);
    miny = min(miny,y);
    if (dire == -1){
        for (int i = 0;i<4;i++){
            int dx = x + dir[i][0];
            int dy = y + dir[i][1];
            if (checkp(dx,dy))
                if (now.maps[x][y] == now.maps[dx][dy])
                    dfsupdate(dx,dy,i,d+1);
        }
    }
    else {
        int dx = x + dir[dire][0];
        int dy = y + dir[dire][1];
        if (checkp(dx,dy))
            if (now.maps[x][y] == now.maps[dx][dy])
                dfsupdate(dx,dy,dire,d+1);
    }
    visited[x][y] = false;
}
inline bool update(int x,int y) {
    maxx = maxy = 0;
    minx = miny = 100;
    dfsupdate(x,y,-1,1);  
    bool flag = false;
    if (maxx-minx+1>=3) {
        for (int i = minx;i<=maxx;i++){
            marks[i][y] = true;
            updates[i][y] = true;
        }
        flag = true;
    }
    if (maxy-miny+1>=3) {
        for (int i = miny;i<=maxy;i++) {
            marks[x][i] = true;
            updates[x][i] = true;
        }
        flag = true;
    }
    return flag;       
}
inline void updateall() {
    for (int i = 0;i<5;i++){
        for (int j = 0;j<7;j++)
            if (marks[i][j])
                now.maps[i][j] = 0,marks[i][j] = false;
        for (int j = 0;j<7;j++)
            if (!now.maps[i][j]){
                int ind = 0;
                for (int k = j+1;k<7;k++)
                    if (now.maps[i][k])
                        now.maps[i][j+ind] = now.maps[i][k],ind++,now.maps[i][k] = 0;
                break;
            }
    }
}
inline bool check() {
    for (int i = 0;i<5;i++)
        if (now.maps[i][0]!=0)
            return false;
    return true;
}
inline bool move(int x,int y,int k) {
    int targetx,targety;
    if (k){
        if (x==4)
            return false;
        else {
            int t = now.maps[x][y];
            now.maps[x][y] = now.maps[x+1][y];
            now.maps[x+1][y] = t;
            steps[cnt++] = Info(x,y,1);
            targetx = x + 1;
            targety = y;
            if(!now.maps[x][y]){
                for (int i = x;i<=x+1;i++)
                    for (int j = 0;j<7;j++)
                        if (!now.maps[i][j]){
                            int ind = 0;
                            for (int k = j+1;k<7;k++)
                                if (now.maps[i][k]){
                                    if(i == x+1&&y == k)
                                        targety = j+ind;
                                    now.maps[i][j+ind] = now.maps[i][k],ind++,now.maps[i][k] = 0;
                                } 
                            break;
                        } 
            }
        }
    } 
    else {
        if (x==0)
            return false;
        else {
            int t = now.maps[x][y];
            now.maps[x][y] = now.maps[x-1][y];
            now.maps[x-1][y] = t;
            steps[cnt++] = Info(x,y,-1);
            targetx = x - 1;
            targety = y;
            if(!now.maps[x][y]){
                for (int i = x-1;i<=x;i++)
                    for (int j = 0;j<7;j++)
                        if (!now.maps[i][j]){
                            int ind = 0;
                            for (int k = j+1;k<7;k++)
                                if (now.maps[i][k]){
                                    if(i == x-1&&y == k)
                                        targety = j+ind;
                                    now.maps[i][j+ind] = now.maps[i][k],ind++,now.maps[i][k] = 0;
                                } 
                            break;
                        } 
            }       
        }
    } 
    bool flag = false;
    if (update(x,y)|update(targetx,targety))
        flag = true;
    while (flag){
        updateall();
        flag = false;
        for (int i = 0;i<5;i++)
            for (int j = 0;j<7&&now.maps[i][j]!=0;j++)
                if (updates[i][j]){
                    updates[i][j] = false;
                    if (update(i,j))
                        flag = true;
                } 
    }
    return true;
}

inline void dfs(int d,int x,int y,int k) {
    if (d > n)
        return;
    last[d] = now;
    if (move(x,y,k)){
        if (check()){
            if (d == n){
                for (int i = 0;i)
                    cout<" "<" "<endl;
                exit(0);
            } else {
                bool flag = false;
                if ((d-n)%2 == 0) {
                    for (int i = 0;i<5;i++){ 
                        for (int j = 0;j<7;j++)
                            if (last[1].maps[i][j]&&last[1].maps[i][j+1]){
                                for (int t = 0;t<(d-n);t++)
                                    cout<" "<" 1"<<endl;
                                break;
                                flag = true;
                            } 
                        if (flag)
                            break;
                    } 
                    for (int i = 0;i)
                        cout<" "<" "<endl;
                    exit(0);
                }
            } 
        }
        for (int i = 0;i<5;i++)
            for (int j = 0;j<7&&now.maps[i][j]!=0;j++)
                if (i!=0&&!now.maps[i-1][j])
                    for (int l = 1;l>=0;l--)
                        dfs(d+1,i,j,l);
                else
                    dfs(d+1,i,j,1);
        cnt--;
    } 
    now = last[d];
}
int main() {
    cin>>n;
    for (int i = 0;i<5;i++) {
        int x;
        int ind = 0;
        while (cin>>x) {
            if (x == 0)
                break;
            now.maps[i][ind] = x;
            ind++;
        }
    }
    for (int i = 0;i<5;i++)
        for (int j = 0;j<7&&now.maps[i][j]!=0;j++)
            if (i!=0&&!now.maps[i-1][j])
                for (int k = 1;k>=0;k--)
                    dfs(1,i,j,k);
            else
                dfs(1,i,j,1);
    cout<<-1<<endl;
}

View Code