Cod sursa(job #2658033)

Utilizator stanbianca611Stan Bianca stanbianca611 Data 12 octombrie 2020 22:46:04
Problema Rj Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 2.3 kb
#include <iostream>
#include <bits/stdc++.h>
using namespace std;

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

int n, m, a[105][105], b[105][105], c[105][105];
priority_queue<tuple<int, int, int>> pq;
int romeo_x, romeo_y, juliet_x, juliet_y;
int dl[]={-1, 0, 1, 0, -1, 1, -1, 1};
int dc[]={0, 1, 0, -1, -1, 1, 1, -1};

bool check(int x, int y)
{
    if(x>=1 && y>=1 && x<=n && y<=m && a[x][y]==0)
        return 1;
    return 0;
}

void lee(int x, int y)
{
    for(int i=0; i<8; i++)
    {
        int next_x=x+dl[i];
        int next_y=y+dc[i];
        if(check(next_x, next_y) && b[next_x][next_y]==1000)
        {
            b[next_x][next_y]=1+b[x][y];
            lee(next_x, next_y);
        }
    }
}

void lee2(int x, int y)
{
    if(b[x][y]==c[x][y]) pq.push(make_tuple(-b[x][y], -x, -y));
    for(int i=0; i<8; i++)
    {
        int next_x=x+dl[i];
        int next_y=y+dc[i];
        if(check(next_x, next_y) && c[next_x][next_y]==1000)
        {
            c[next_x][next_y]=1+c[x][y];
            lee2(next_x, next_y);
        }
    }
}

int main()
{
    f>>n>>m;
    char x;
    f.get(x);
    for(int i=1; i<=n; i++)
    {
        int ok=0;
        for(int j=1; j<=m; j++)
        {
            f.get(x);
            b[i][j]=1000;
            c[i][j]=1000;
            if(x=='X')
            {
                a[i][j]=-1;
            }
            else if (x=='R')
            {
                romeo_x=i;
                romeo_y=j;
                a[i][j]=0;
                b[i][j]=0;
                c[i][j]=0;
            }
            else if (x=='J')
            {
                juliet_x=i;
                juliet_y=j;
                a[i][j]=0;
                b[i][j]=0;
                c[i][j]=0;
            }
            else if (x==' ')
            {
                a[i][j]=0;
            }
            else if (x=='\n')
            {
                while(j<=m)
                {
                    ok=1;
                    a[i][j]=0;
                    j++;
                }
            }
        }
        if(ok==0) f.get(x);
    }
    lee(romeo_x, romeo_y);
    lee2(juliet_x, juliet_y);
    tuple<int, int, int> res=pq.top();
    cout<<-get<0>(res)<<" "<<-get<1>(res)<<" "<<-get<2>(res)<<"\n";
    return 0;
}