Cod sursa(job #2490702)

Utilizator LeCapataIustinian Serban LeCapata Data 10 noiembrie 2019 18:37:31
Problema Rj Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 2.05 kb
//https://www.infoarena.ro/problema/rj
#include <fstream>
#include <queue>
using namespace std;

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

int n, m;
char x[256];
int mat[105][105];

pair<int, int> coada[10050];
pair<int, int> coordR, coordJ;

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

void citire()
{
    for(int i=0; i<=n; i++)
    {
        in.getline(x,256);
        for(int j=0; j<=m; j++)
        {
           if(x[j]=='X')
                mat[i][j+1]=-1;
            else if(x[j]==' ')
                mat[i][j+1]=0;
            else if(x[j]=='R')
            {
                coordR=make_pair(i,j+1);
                mat[i][j+1]=1;
            }
            else if(x[j]=='J')
                coordJ=make_pair(i,j+1);
        }
    }
}

void captusire()
{
    for(int i=0; i<=n+1; i++)
        mat[i][0]=mat[i][m+1]=-1;

    for(int j=0; j<=m+1; j++)
        mat[0][j]=mat[n+1][j]=-1;
}

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

    citire();
    captusire();

    int prim=1, ultim=1;
    coada[1]=coordR;

    while(prim<=ultim && mat[coordJ.first][coordJ.second]==0)
    {
        int okx=coada[prim].first;
        int oky=coada[prim].second;
        prim++;

        for(int i=0; i<8; i++)
        {
            int x2=okx+dx[i];
            int y2=oky+dy[i];

            if(mat[x2][y2]==0)
            {
                mat[x2][y2]=mat[okx][oky]+1;
                ultim++;
                pair<int, int> newcoord=make_pair(x2,y2);
                coada[ultim]=newcoord;
            }
        }
    }

    out<<(mat[coordJ.first][coordJ.second]+1)/2<<" ";

    for(int i=1; i<=ultim; i++)
    {
        if(mat[coada[i].first][coada[i].second]==(mat[coordJ.first][coordJ.second]-1)/2+1)
        {
            out<<coada[i].first<<" "<<coada[i].second<<'\n';
            break;
        }
    }

    for(int i=1; i<=n; i++)
    {
        for(int j=1; j<=m; j++)
            out<<mat[i][j]<<" ";
        out<<'\n';
    }

    in.close();
    out.close();
    return 0;
}