Cod sursa(job #1383990)

Utilizator CartofJohnsonFMI Tanasescu Andrei CartofJohnson Data 10 martie 2015 19:51:51
Problema Rj Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 2.03 kb
#include <iostream>
#include <fstream>
using namespace std;
int v[105][105],w[105][105],n,m,pa,pb,da,db;
char q[150];
int main()
{
        FILE *fin=fopen("rj.in","r");
		FILE *fout=fopen("rj.out","w");
        fscanf(fin,"%d %d",&n,&m);
		//fscanf(fin," %[^\n]",q);
        for(int a=0;a<=n+1;a++)
            v[a][0]=v[a][m+1]=-1;
        for(int a=0;a<=m+1;a++)
            v[0][a]=v[n+1][a]=-1;
        for(int a=1;a<=n;a++)
        {
            fscanf(fin," %105[^\n]",q);
            for(int b=0;b<m;b++)
            {
                if(q[b]=='X')
                    v[a][b+1]=-1;
                if(q[b]==' ' or q[b]==0)
                    v[a][b+1]=99999999;
                if(q[b]=='R')
                    v[a][b+1]=0,da=a,db=b+1;
                if(q[b]=='J')
                    pa=a,pb=1+b,v[a][b+1]=99999999;
            }
        }
        for(int a=0;a<=n+1;a++)
        for(int b=0;b<=m+1;b++)
            w[a][b]=v[a][b];
        w[pa][pb]=0;
        w[da][db]=99999999;


        int dx[]={-1,-1,-1,0,0,1,1,1};
        int dy[]={-1,0,1,-1,1,-1,0,1};
        int ok;
        do
        {
            ok=0;
            for(int a=1;a<=n;a++)
            for(int b=1;b<=m;b++)
            {
                if(v[a][b]>=0)
                {
                    for(int c=0;c<8;c++)
                    if(v[a+dx[c]][b+dy[c]]>=0)
                    if(v[a][b]+1<v[a+dx[c]][b+dy[c]])
                    v[a+dx[c]][b+dy[c]]=v[a][b]+1,ok=1;
                }
                if(w[a][b]>=0)
                {
                    for(int c=0;c<8;c++)
                    if(w[a+dx[c]][b+dy[c]]>=0)
                    if(w[a][b]+1<w[a+dx[c]][b+dy[c]])
                    w[a+dx[c]][b+dy[c]]=w[a][b]+1,ok=1;
                }
            }
        }while(ok==1);
        int qa,qb,c=99999999;
        for(int a=1;a<=n;a++)
        for(int b=1;b<=m;b++)
        if(v[a][b]>=0 and v[a][b]==w[a][b])
        if(v[a][b]<c)
            c=v[a][b],qa=a,qb=b;
        fprintf(fout,"%d %d %d",c+1,qa,qb);

}