UVA 572 - Oil Deposits

/******************************************************************
***   Problem       :                                           ***
***   Author        : Shipu Ahamed (Psycho Timekiller)          ***
***   E-mail        : shipuahamed01@gmail.com                   ***
***   University    : BUBT,Dept. of CSE                         ***
***   Team          : BUBT_Psycho                               ***
***   My Blog       : http://shipuahamed.blogspot.com           ***
***   Facebook      : http://www.facebook.com/DeesheharaShipu   ***
******************************************************************/

#include 
using namespace std;

#define ll long long
#define pi 2*acos(0.0)
#define all(v) v.begin(),v.end()

//input
#define si(t) scanf("%d",&t)
#define sl(t) scanf("%lld",&t)
#define sf(t) scanf("%f",&t)
#define sdb(t) scanf("%lf",&t)
#define schar(c) scanf("%c",&c)
#define sstring(s) scanf("%s",s)
#define ssi(a,b) scanf("%d%d",&a,&b)
#define ssl(a,b) scanf("%lld%lld",&a,&b)

//Output
#define P(a) printf("%d\n",a)
#define PL(a) printf("%lld\n",a)
#define PF(a) printf("%f\n",a)
#define PDB(a) printf("%lf\n",a)
#define PN(a) printf("%d ",a)
#define PLN(a) printf("%lld ",a)
#define PFN(a) printf("%f ",a)
#define PDBN(a) printf("%lf ",a)

#define CP(a) cout< vi;
typedef  vector vl;
typedef  vector vs;
typedef  pair pii;
typedef  vector vpii;
typedef  set si;
typedef  set ss;
typedef  map mii;
typedef  map msi;

//For Define
#define for0(i,n) for(__typeof(n) i=0;i<(n);i++)
#define for1(i,n) for(__typeof(n) i=1;i<=(n);i++)
#define rfor0(i,n) for(__typeof(n) i=(n);i>=0;i--)
#define rfor1(i,n) for(__typeof(n) i=(n);i>=1;i--)
#define For(i,a,b) for(__typeof(b) i=a;i<=b;i++)
#define forstl(i,s) for(__typeof((s).end()) i=(s).begin(); i != (s).end(); i++)

//Debug
#define db(x) cout << #x << " -> " << (x) << endl;
#define db_sarr(i,a) cout<<#a<<"["< "< "< "<r-1 || j<-1 || j>c-1 || s[i][j]!='@')
        return ;

    s[i][j] = '*';

    floodfill(i-1,j);
    floodfill(i-1,j+1);
    floodfill(i-1,j-1);
    floodfill(i,j+1);
    floodfill(i,j-1);
    floodfill(i+1,j);
    floodfill(i+1,j+1);
    floodfill(i+1,j-1);

}


int main()
{
    int i,cnt;

    while(ssi(r,c)==2)
    {
        getchar();
        if(r==0 && c==0)
        break;
        cnt=0;
        for0(i,r)
            cin>>s[i];
        i=0;
        while(i