lee

#include <iostream>
#include <fstream>
using namespace std;

int n,viz[20],i,prim,pi,ps,l[100][100],l1,c1,j,li,ci;
struct camera
{
    int l,c;
} c[30];

int main()
{   ifstream f("Lee.txt");
     f>>n;
     for(i=1;i<=n;i++)
     for(j=1;j<=n;j++)
        f>>l[i][j];
        for(i=0;i<=n+1;i++)
            {l[0][i]=-1;
            l[n+1][i]=-1;
            l[i][0]=-1;
            l[i][n+1]=-1;
            }
            cin>>l1>>c1;
       viz[prim]=1;
        pi=1;
        ps=1;
        c[pi].l=l1;
        c[pi].c=c1;
        while(ps<=pi)
        {   li=c[ps].l;
            ci=c[ps].c;
        if(l[li-1][ci]==0&& !(li-1==l1&&c1==ci))
            {
                pi++;
                c[pi].l=li-1;
                c[pi].c=ci;
            l[li-1][ci]=l[li][ci]+1;
            }
            if(l[li][ci-1]==0&& !(li==l1&&c1-1==ci))
            {
                pi++;
                c[pi].l=li;
                c[pi].c=ci-1;
            l[li][ci-1]=l[li][ci]+1;
            }
            if(l[li+1][ci]==0&& !(li+1==l1&&c1==ci))
            {
                pi++;
                c[pi].l=li+1;
                c[pi].c=ci;
            l[li+1][ci]=l[li][ci]+1;
            }
            if(l[li][ci+1]==0&& !(li==l1&&c1+1==ci))
            {
                pi++;
                c[pi].l=li;
                c[pi].c=ci+1;
            l[li][ci+1]=l[li][ci]+1;
            }
            ps++;
        }
     for(i=1;i<=n;i++)
     {for(j=1;j<=n;j++)
        cout<<l[i][j]<<" ";
        cout<<endl;}
}