Cod sursa(job #1603503)

Utilizator cmarius46Mihail Vlahuta cmarius46 Data 17 februarie 2016 17:01:22
Problema Rj Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.73 kb
#include <iostream>
#include <fstream>
#include <cstring>
using namespace std;
ifstream f("rj.in");
ofstream g("rj.out");
int b[105][105],m,n,i,j,ok,prim,ultim,k,tmin,dl[]={-1,-1,0,1,1,1,0,-1},dc[]={0,1,1,1,0,-1,-1,-1};
char a[102];
struct lincol
{
    int lin,col;
};
lincol ps,pc,p,v,C[100*100];
void Af()
{
    for(i=0;i<=n+1;i++)
    {
        for(j=0;j<=m+1;j++)
            cout<<b[i][j]<<" ";
        cout<<'\n';
    }
}
int main()
{f>>n>>m;
f.get();
for(i=1;i<=n;i++)
{
    f.get(a,102);
    f.get();
    for(j=0;j<m;j++)
    {
        if(a[j]=='R')
            {
                ps.lin=i;
                ps.col=j+1;
            }
        else
            if(a[j]=='J')
        {
            pc.lin=i;
            pc.col=j+1;
        }
        else
            if(a[j]=='X')
                b[i][j+1]=-1;
    }
}


//bordarea
for(i=0;i<=n+1;i++)
{
    b[i][m+1]=-1;
    b[i][0]=-1;
}
for(j=0;j<=m+1;j++)
{
    b[0][j]=-1;
    b[n+1][j]=-1;
}
//

//LEE

prim=ultim=0;
b[ps.lin][ps.col]=1;
C[0]=ps;
while(prim<=ultim&&!b[pc.lin][pc.col])
{
    p=C[prim];
    prim++;
    for(k=0;k<8;k++)
    {
        v.lin=p.lin+dl[k];
        v.col=p.col+dc[k];
        if(!b[v.lin][v.col])
        {
            ultim++;
            C[ultim]=v;
            b[v.lin][v.col]=b[p.lin][p.col]+1;
        }
    }
}

//sfarsit LEE
//Af();
tmin=(b[pc.lin][pc.col])/2+1;
g<<tmin<<" ";
p=pc;
for(i=1;i<tmin;i++)
{
    ok=1;
    for(k=0;k<8&&ok;k++)
    {
        v.lin=p.lin+dl[k];
        v.col=p.col+dc[k];
        if(b[v.lin][v.col]!=-1&&b[v.lin][v.col]==b[p.lin][p.col]-1)
        {
            ok=0;
            p=v;
        }

    }
}
g<<p.lin<<" "<<p.col;
    return 0;
}