Andrey-Li

#include <iostream>
#include <stdlib.h>
using namespace std;
int d[5000] [5000] ;
string b[5000] [5000] ;
void way(int x, int y)
{if(d[x][y]-1==d[x+1][y]){d[x][y]=-3;way(x+1,y);}else{
   if(d[x][y]-1==d[x-1][y]){d[x][y]=-3;way(x-1,y);}else{
        if(d[x][y]-1==d[x][y+1]){d[x][y]=-3;way(x,y+1);}else{if(d[x][y]-1==d[x][y-1]){d[x][y]=-3;way(x,y-1);}}}}}
void func(int x, int y,int n) {
if (d[x][y]==0||d[x][y]>n){
    d[x][y]=n;
    func(x+1,y,n+1);
    func(x-1,y,n+1);
    func(x,y+1,n+1);
    func(x,y-1,n+1);
}
}

int main() {
int n,m,xn,yn,xk,yk;
cin>>n>>m;
cin>>xn>>yn;
cin>>xk>>yk;
xn=xn+1; yn=yn+1;
xk=xk+1; yk=yk+1;

for (int i = 0; i<n+2; i++)
    {
    for (int j = 0; j<m+2; j++)
    {
    if (i==0||j==0||i==n+1||j==m+1){d[i][j]=-1;}else{int p; cin>>p; d[i][j]=p;}
    }}


    func(xn,yn,1);

  way(xk,yk);
  d[xn][yn]=-3;


  for (int i = 0; i<n+2; i++)
    {
    for (int j = 0; j<m+2; j++)
    {
    if(d[i][j]==-1){b[i][j]="#";}
    if(d[i][j]==-3){b[i][j]="+";}
    if(d[i][j]>-1){b[i][j]=" ";}
    }}b[xn][yn]="n";b[xk][yk]="k";

    for (int i = 0; i<n+2; i++)
    {
    for (int j = 0; j<m+2; j++)
    {
    cout<<b[i][j]<<" ";
    }cout<<endl;}

    return 0;
}