mapp

Posted 2020-08-12

#define C4DROID 0

//#include <iostream>
#include <stdio.h>
#include <conio.h>
#include <cstdlib>
#include <time.h>

#if !C4DROID
#include <windows.h>
#endif
//using namespace std;

int correct;
int fact[]= {1,1,2,6,24,120,720,5040,40320};

void swp(char &x,char &y) {
    char t=x;
    x=y;
    y=t;
}

char conv(char a) {
    if(a<4) return a;
    if(a==‘w‘) return 0;
    if(a==‘s‘) return 1;
    if(a==‘a‘) return 2;
    if(a==‘d‘) return 3;
    return -1;
}

class field {
public:
    char *f;
    int zr;
    field () {
        f=new char[9];
        for(int i=0; i<8; ++i) f[i]=i+1;
        f[zr=8]=0;
    }
    void mix(int hehe) {
        while(hehe--) {
            move(rand()&3);
        }
    }
    field (char* F,int Zr) {
        f=F;
        zr=Zr;
    }
    char& at(int x,int y) {
        return f[x+y*3];
    }
    void out() {
#if C4DROID
        clrscr();
#else
        SetConsoleCursorPosition(GetStdHandle(-11),(COORD) {
            0,0
        });
#endif
        printf("%d %d %d\n\n%d %d %d\n\n%d %d %d\n"
               ,f[0],f[1],f[2],f[3],f[4],f[5],f[6],f[7],f[8]);
    }
    bool up() {
        if(zr<3) return false;
        swp(f[zr],f[zr-3]);
        zr-=3;
        return true;
    }
    bool down() {
        if(zr>5) return false;
        swp(f[zr],f[zr+3]);
        zr+=3;
        return true;
    }
    bool left() {
        if(zr%3==0) return false;
        swp(f[zr],f[zr-1]);
        zr--;
        return true;
    }
    bool right() {
        if(zr%3==2) return false;
        swp(f[zr],f[zr+1]);
        zr++;
        return true;
    }
    bool move(char a) {
        switch(conv(a)) {
        case 0:
            return up();
        case 1:
            return down();
        case 2:
            return left();
        case 3:
            return right();
        default:
            return 0;
        }
        return 0;
    }
    bool good() {
        return f[0]==1&&f[1]==2&&f[2]==3&&f[3]==4&&f[4]==5&&
               f[5]==6&&f[6]==7&&f[7]==8;
    }
    field& operator =(const field &x) {
        for(int i=0; i<9; ++i) f[i]=x.f[i];
        zr=x.zr;
        return *this;
    }
};


class solution {
public:
    field s;
    char data[362880];/*181440 slots is ok,without1,2,5,6,9,10*/
    void change(const char *a,char v) {
        int r=0,i=9,j=0,c;
        while(j<8) {
            c=0;
            for(i=j; i<9; ++i) if(a[j]>a[i]) ++c;
            r=(r+c)*(8-j);
            ++j;
        }
        data[r]=v;
    }
    char& todata(const char* a) {
        int r=0,i=9,j=0,c;
        while(j<8) {
            c=0;
            for(i=j; i<9; ++i) if(a[j]>a[i]) ++c;
            r=(r+c)*(8-j);
            ++j;
        }
        return data[r];
    }
    char& todata(field a) {
        return todata(a.f);
    }
    void init() {
        field *a=new field[24047],*b=new field[24047],*t;
        for(int i=0; i<362880; ++i) data[i]=127;
        int asize=1,bsize=0,count=0,msz=1;
        field d;
        a[0]=d;
        change(d.f,0);
        getche();
        while(asize) {
            count++;
            bsize=0;
            for(int i=0; i<asize; ++i) {
                if((d=a[i]).up()&&todata(d)>count) {
                    b[bsize++]=d;
                    change(d.f,count);
                }

                if((d=a[i]).down()&&todata(d)>count) {
                    b[bsize++]=d;
                    change(d.f,count);
                }
                if((d=a[i]).left()&&todata(d)>count) {
                    b[bsize++]=d;
                    change(d.f,count);
                }
                if((d=a[i]).right()&&todata(d)>count) {
                    b[bsize++]=d;
                    change(d.f,count);
                }
            }
            t=a;
            a=b;
            b=t;
            asize=bsize;
            msz+=bsize;
        }
        //a[0].out();
        for(int i=0;i<100;++i) printf("%d %d\n",i,data[i]);
        getche();
        
    }
    void get(field o) {
        for(int i=0; i<9; ++i) s.f[i]=o.f[i];
        s.zr=o.zr;
    }
    void solve() {
        int count=todata(s);
        field d;
        while(count>0) {
            printf("%d",count);
            if(getche()==‘q‘) return;
            if((d=s).up()&&todata(d)<count) {
                s=d;
                s.out();
                count--;
            } else if((d=s).down()&&todata(d)<count) {
                s=d;
                s.out();
                count--;
            } else if((d=s).left()&&todata(d)<count) {
                s=d;
                s.out();
                count--;
            } else if((d=s).right()&&todata(d)<count) {
                s=d;
                s.out();
                count--;
            }
        }
    }
};

solution sol;

int main() {
    srand(time(NULL));
    sol.init();
    field a;
    correct=sol.todata(a.f);
    a.out();
    char op;
    while(op=getche()) {
        if(op==‘p‘) {
            sol.get(a);
            sol.solve();
            a=sol.s;
        }
        if(op==‘m‘) a.mix(666);
        a.move(op);
        a.out();
    }
}