Cod sursa(job #1142590)

Utilizator albupetruFMI Albu Petru albupetru Data 13 martie 2014 22:56:32
Problema Rj Scor 50
Compilator cpp Status done
Runda Arhiva de probleme Marime 2.73 kb
#include <fstream>
#include <queue>
#include<iostream>
using namespace std;

struct coord
{
    int x,y;
}ro,ju,rez;
int h_r[101][101],h_j[101][101],n,m;//

int boundaries(int x, int y)
{
    if(x>0 && y>0 && x<=n & y<=m)
        return 1;
    return 0;
}

void bf(coord start, int a[101][101])
{
    queue <coord> que;
    que.push(start);
    a[start.x][start.y]=1;

    while(!que.empty())
    {
        coord t=que.front();
        que.pop();
        coord p;
        p.x=t.x-1; p.y=t.y-1;
        if(boundaries(p.x,p.y) && a[p.x][p.y]==0)
        {
            a[p.x][p.y]=a[t.x][t.y]+1;
            que.push(p);
        }
        p.x=t.x-1; p.y=t.y;
        if(boundaries(p.x,p.y) && a[p.x][p.y]==0)
        {
            a[p.x][p.y]=a[t.x][t.y]+1;
            que.push(p);
        }
        p.x=t.x; p.y=t.y-1;
        if(boundaries(p.x,p.y) && a[p.x][p.y]==0)
        {
            a[p.x][p.y]=a[t.x][t.y]+1;
            que.push(p);
        }
        p.x=t.x+1; p.y=t.y-1;
        if(boundaries(p.x,p.y) && a[p.x][p.y]==0)
        {
            a[p.x][p.y]=a[t.x][t.y]+1;
            que.push(p);
        }
        p.x=t.x-1; p.y=t.y+1;
        if(boundaries(p.x,p.y) && a[p.x][p.y]==0)
        {
            a[p.x][p.y]=a[t.x][t.y]+1;
            que.push(p);
        }
        p.x=t.x+1; p.y=t.y+1;
        if(boundaries(p.x,p.y) && a[p.x][p.y]==0)
        {
            a[p.x][p.y]=a[t.x][t.y]+1;
            que.push(p);
        }
        p.x=t.x+1; p.y=t.y;
        if(boundaries(p.x,p.y) && a[p.x][p.y]==0)
        {
            a[p.x][p.y]=a[t.x][t.y]+1;
            que.push(p);
        }
        p.x=t.x; p.y=t.y+1;
        if(boundaries(p.x,p.y) && a[p.x][p.y]==0)
        {
            a[p.x][p.y]=a[t.x][t.y]+1;
            que.push(p);
        }
    }
}

int triang()
{
    int l=10000;
    for(int j=1;j<=m;j++)
        for(int i=1;i<=n;i++)
        {
            if(h_r[i][j]!=-1)
            if(h_r[i][j]==h_j[i][j] && h_r[i][j]<l && h_r[i][j])
            {
                l=h_r[i][j];
                rez.x=i;
                rez.y=j;
            }
        }
    return l;
}

int main()
{
    ifstream f("rj.in");
    f>>n>>m;
    char a;
    int i,j;
    f.get(a);
    for(i=1;i<=n;i++)
    {
        //
        for(j=1;j<=m;j++)
        {
            f.get(a);
            if(a=='X') h_r[i][j]=h_j[i][j]=-1;
            else if(a=='R') {ro.x=i; ro.y=j;}
            else if(a=='J') {ju.x=i; ju.y=j;}
            else if(a=='\n') break;
        }
        if(a!='\n')f.get(a);
    }
    f.close();
    bf(ro,h_r);
    bf(ju,h_j);
    int l=triang();
    ofstream g("rj.out");
    g<<l<<" "<<rez.x<<" "<<rez.y;
    g.close();
    return 0;
}