Cod sursa(job #2295329)

Utilizator oanceadavidOancea David oanceadavid Data 3 decembrie 2018 16:11:36
Problema Rj Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 2.88 kb
#include <iostream>
#include <fstream>
#include <queue>
#include <climits>
using namespace std;

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

#define nmax 105

int n,m;

int r_mat[nmax][nmax];
int j_mat[nmax][nmax];
bool config[nmax][nmax];

const int dx[8]={0,1,0,-1,1,-1,1,-1};
const int dy[8]={1,0,-1,0,1,-1,-1,1};

queue< pair<int,int> > qRomeo;
queue< pair<int,int> > qJulieta;

pair<int,int> r_intrare;
pair<int,int> j_intrare;

struct triple{
public:
    int first = INT_MAX;
    int second;
    int third;
};

void citeste(){
    in>>n>>m;
    {
        char temp[2];
        in.getline(temp,1);
    }
    for (int i = 1; i <= n; i++)
    {
        char c[nmax];
        in.getline(c,nmax,'\n');
        for(int j = 0; c[j]!=0;j++){
            if(c[j] == 'R'){
                r_intrare.first=i;
                r_intrare.second=j+1;
            }
            if(c[j] == 'J'){
                j_intrare.first=i;
                j_intrare.second=j+1;
            }
            if(c[j] == 'X'){
                config[i][j+1]=1;
            }
        }
    }
    qRomeo.push(r_intrare);
    r_mat[r_intrare.first][r_intrare.second]=1;
    qJulieta.push(j_intrare);
    j_mat[j_intrare.first][j_intrare.second]=1;
}

int main()
{
    citeste();
    for(int i = 0; i <= n+1; i++){
        config[i][0]=1;
        config[i][m+1]=1;
    }
    for(int i = 0;i<=m+1;i++){
        config[n+1][i]=1;
        config[0][i]=1;
    }
    while(!qRomeo.empty()){
        pair<int,int> pc;
        pc=qRomeo.front();
        qRomeo.pop();
        int new_x,new_y;
        for (int k=0;k<8;k++){
            new_x=pc.first+dx[k];
            new_y=pc.second+dy[k];
            if(config[new_x][new_y]==0){
                if(r_mat[new_x][new_y]==0){
                    r_mat[new_x][new_y]=r_mat[pc.first][pc.second]+1;
                    qRomeo.push(make_pair(new_x,new_y));

                }
            }
        }
    }

    while(!qJulieta.empty()){
        pair<int,int> pc;
        pc=qJulieta.front();
        qJulieta.pop();
        int new_x,new_y;
        for (int k=0;k<8;k++){
            new_x=pc.first+dx[k];
            new_y=pc.second+dy[k];
            if(config[new_x][new_y]==0){
                if(j_mat[new_x][new_y]==0){
                    j_mat[new_x][new_y]=j_mat[pc.first][pc.second]+1;
                    qJulieta.push(make_pair(new_x,new_y));
                }
            }
        }
    }
    triple rez;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            if(r_mat[i][j] == j_mat[i][j] && r_mat[i][j]!=0){
                if(r_mat[i][j] < rez.first){
                    rez.first=r_mat[i][j];
                    rez.second=i;
                    rez.third=j;
                }
            }
        }
    }
    out<<rez.first<<' '<<rez.second<<' '<<rez.third;
    return 0;
}