Cod sursa(job #1685180)

Utilizator Victor24Vasiesiu Victor Victor24 Data 11 aprilie 2016 15:53:16
Problema Rj Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 3.94 kb
#include <fstream>
#include <queue>
#include <cstring>
using namespace std;

ifstream f ("rj.in");
ofstream g ("rj.out");

char c;

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

queue < pair <int, int> > cd;

pair <int, int> aux, aux1;

int n, m, i, j, mi=100000,ju[104][104], r[104][104], xr, yr, xj, yj, ln, col, ln1, col1;

char s[200];

int main ()
{
    f>>n>>m;

    for (i=1; i<=n; i++)
    {
        f.get();
        f.get(s , 200 );

        for (j=0; j<m; j++)
        {
            c=s[j];
            if (c=='X')
            {
                r[i][j+1]=ju[i][j+1]=-1;
            }

            else if (c=='R')
            {
                r[i][j+1]=1;
                xr=i;
                yr=j+1;
            }
            else if (c=='J')
            {
                xj=i;
                yj=j+1;
                ju[i][j+1]=1;
            }
        }

    }

    for (i=0; i<=m+1; i++)
    {
        r[0][i]=ju[0][i]=r[n+1][i]=ju[n+1][i]=-1;
    }
    for (i=0; i<=n+1; i++)
    {
        r[i][0]=ju[i][0]=r[i][m+1]=ju[i][m+1]=-1;
    }

  /*for (i=0; i<=n+1; i++)
    {
        for (j=0; j<=m+1; j++)
        {
            if (r[i][j]+ju[i][j]<mi && r[i][j]!=-1)
            {
                xr=i;
                yr=j;
                mi=r[i][j]+ju[i][j];
            }
            cout<<r[i][j]<<" ";
        }
        cout<<'\n';
    }

    cout<<'\n';

    for (i=0; i<=n+1; i++)
    {
        for (j=0; j<=m+1; j++)
        {
            if (r[i][j]+ju[i][j]<mi && r[i][j]!=-1)
            {
                xr=i;
                yr=j;
                mi=r[i][j]+ju[i][j];
            }
            cout<<ju[i][j]<<" ";
        }
        cout<<'\n';
    }*/

    aux=make_pair(xr, yr);

    cd.push(aux);

    while (!cd.empty())
    {
        aux=cd.front();
      //  cout<<1;
        for (i=0; i<8; i++)
        {
            ln=aux.first;
            col=aux.second;
            ln+=dx[i];
            col+=dy[i];

            if (r[ln][col]==0)
            {
                r[ln][col]=r[aux.first][aux.second]+1;
                cd.push( make_pair(ln, col) );
            }
            else if (r[ln][col]>r[aux.first][aux.second])
            {
                if (r[ln][col]==0)
                {
                    r[ln][col]=r[aux.first][aux.second]+1;
                    cd.push( make_pair(ln, col) );
                }
            }

        }

        cd.pop();

    }

    aux=make_pair(xj, yj);

    cd.push(aux);

    //cout<<2;

    while (!cd.empty())
    {
        aux=cd.front();
        //cout<<2;
        for (i=0; i<8; i++)
        {
            ln=aux.first;
            col=aux.second;
            ln+=dx[i];
            col+=dy[i];

            if (ju[ln][col]==0)
            {
                ju[ln][col]=ju[aux.first][aux.second]+1;
                cd.push( make_pair(ln, col) );
            }
            else if (ju[ln][col]>ju[aux.first][aux.second])
            {
                if (ju[ln][col]==0)
                {
                    ju[ln][col]=ju[aux.first][aux.second]+1;
                    cd.push( make_pair(ln, col) );
                }
            }

        }

        cd.pop();

    }

    for (i=1; i<=n; i++)
    {
        for (j=1; j<=m; j++)
        {
            if (r[i][j]==ju[i][j] && r[i][j]>=1)
            {
                if (r[i][j]<mi)
                {
                xr=i;
                yr=j;
                mi=r[i][j];
                }
            }
        }
    }

     /*for (i=1; i<=n; i++)
    {
        for (j=1; j<=m; j++)
        {
            g<<r[i][j]<<" ";
        }
        g<<'\n';
    }

    g<<'\n';

    for (i=1; i<=n; i++)
    {
        for (j=1; j<=m; j++)
        {
            g<<ju[i][j]<<" ";
        }
        g<<'\n';
    }*/

    g<<mi<<" "<<xr<<" "<<yr;

    return 0;
}