Cod sursa(job #1895355)

Utilizator circeanubogdanCirceanu Bogdan circeanubogdan Data 27 februarie 2017 22:00:41
Problema Rj Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 2.56 kb
#include <fstream>
#include <string>
#include <cstring>
#include <algorithm>

using namespace std;

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

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

string sir;
int i,j,n,m,startRx,startRy,startJx,startJy,k,a[102][102],b[102][102];

struct abc
{
    int x,y,nr;
}v[10008];

struct abc2
{
    int x,y;
}c[10008];

bool cmp(abc a,abc b)
{
    if(a.nr==b.nr)
    {
        if(a.x==b.x)
            return a.y<b.y;
        return a.x<b.x;
    }
    return a.nr<b.nr;
}

void lee1(int startx, int starty)
{
    int p,u,xi,yi,xc,yc;
    c[1].x=startx;
    c[1].y=starty;
    a[startx][starty]=1;
    p=1;
    u=1;
    while(p<=u)
    {
        xi=c[p].x;
        yi=c[p].y;
        for(i=0;i<8;i++)
        {
            xc=xi+dx[i];
            yc=yi+dy[i];
            if(a[xc][yc]==0)
            {
                a[xc][yc]=a[xi][yi]+1;
                c[++u].x=xc;
                c[u].y=yc;
            }
        }
        ++p;
    }
}

void lee2(int startx, int starty)
{
    int p,u,xi,yi,xc,yc;
    c[1].x=startx;
    c[1].y=starty;
    b[startx][starty]=1;
    p=1;
    u=1;
    while(p<=u)
    {
        xi=c[p].x;
        yi=c[p].y;
        for(i=0;i<8;i++)
        {
            xc=xi+dx[i];
            yc=yi+dy[i];
            if(b[xc][yc]==0)
            {
                b[xc][yc]=b[xi][yi]+1;
                c[++u].x=xc;
                c[u].y=yc;
            }
        }
        ++p;
    }
}

int main()
{
    f>>n>>m;
    getline(f,sir);
    for(i=1;i<=n;i++)
    {
        getline(f,sir);
        for(j=0;j<m;j++)
        {
            if(sir[j]=='X')
                b[i][j+1]=a[i][j+1]=-1;
            if(sir[j]=='R')
            {
                startRx=i;
                startRy=j+1;
            }
            if(sir[j]=='J')
            {
                startJx=i;
                startJy=j+1;
            }
        }
    }
    for(i=0;i<=n+1;i++)
    {
        a[i][0]=b[i][0]=a[i][m+1]=b[i][m+1]=-1;
    }
    for(j=0;j<=m+1;j++)
    {
        a[0][j]=a[n+1][j]=b[0][j]=b[n+1][j]=-1;
    }
    lee1(startRx,startRy);
    lee2(startJx,startJy);
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=m;j++)
        {
            if(a[i][j]==b[i][j]&&a[i][j]!=-1&&a[i][j]!=0)
                {
                    v[++k].nr=a[i][j];
                    v[k].x=i;
                    v[k].y=j;
                }
        }
    }
    sort(v+1,v+k+1,cmp);
    g<<v[1].nr<<' '<<v[1].x<<' '<<v[1].y;
    return 0;
}