Cod sursa(job #1629445)

Utilizator Dragos2811Rebegea Dragos Dragos2811 Data 4 martie 2016 15:31:46
Problema Rj Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 2.13 kb
#include <iostream>
#include <fstream>
#include <queue>
#include <string.h>
using namespace std;
ifstream fin("rj.in");
ofstream fout("rj.out");
int dx[]={0,0,1,1,1,-1,-1,-1};
int dy[]={1,-1,0,1,-1,0,1,-1};
int map[100][100],n,m,startx,starty,stopx,stopy,minx,miny;
queue < pair <int, int> > coada;
string s;
void citire()
{   int i;unsigned int j;
    fin>>n>>m;
    fin.get();
    for(i=1; i<=n; i++)
    { getline(fin,s);
      for(j=0; j<s.length(); j++)
    {    if(s[j]==' ')map[i][j+1]=0;
         else if(s[j]=='X')map[i][j+1]=-1;
         else if(s[j]=='R'){ startx=i;
                             starty=j+1;
                        }
         else if(s[j]=='J'){ stopx=i;
                             stopy=j+1;
                        }
     }
    }
}
bool ok(int i,int j)
{
    return map[i][j]==0 && i>=1 && j>=1 && i<=n && j<=m;
}
void lee()
{
    int i,j,i_urm,j_urm;
    map[startx][starty]=1;
    coada.push(make_pair(startx,starty));
    while(!coada.empty())
    {
        i=coada.front().first;
        j=coada.front().second;
        coada.pop();
        for(int d=0; d<8; d++) { i_urm=i+dx[d];
                                 j_urm=j+dy[d];
                                 if(ok(i_urm,j_urm)&&map[i_urm][j_urm]==0){ map[i_urm][j_urm]=1+map[i][j];
                                                                           coada.push(make_pair(i_urm,j_urm));
                                                                         }
                               }
    }
}
int main()
{
    citire();
    lee();

     for(int i=1; i<=n; i++)
     for(int j=1; j<=m; j++) if(map[i][j]==map[stopx][stopy]/2+1) { if(miny==0)miny=j;
                                                                    if(minx==0)minx=i;
                                                                    else if(minx>i)minx=i;
                                                                    else if(minx==i)if(miny>j)miny=j;

                                                                }
    fout<<map[stopx][stopy]/2+1<<" "<<minx<<" "<<miny;

    fin.close();
    fout.close();
    return 0;
}