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lightoj 1012.cpp
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lightoj 1012.cpp
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#include<bits/stdc++.h>
using namespace std;
#define ash ios_base::sync_with_stdio(0);
#define pb push_back
#define sc(n) scanf("%d",&n);
#define scl(n) scanf("%I64d",&n);
#define sc2(m,n) scanf("%d%d",&m,&n);
#define sc2l(m,n) scanf("%I64d%I64d",&m,&n);
#define pf printf
#define Big(x,y) max(x,y);
#define Small(x,y) min(x,y);
#define input(array,size) for(int i=0;i<size;i++)cin>>array[i];
#define newline pf("\n");
#define f(s,l,in) for(ll i=s;i<l;i+=in)
#define Max INT_MAX
#define Min INT_MIN
#define pi acos(-1.0)
#define Memset(a,val) memset(a,val,sizeof(a));
typedef long long ll;
char ar[21][21];
int cnt,r,c;
void dfs(int x,int y){
if(x<0||x>=r||y<0||y>=c||ar[x][y]=='#')return;
if(ar[x][y]=='@')ar[x][y]='#';
if(ar[x][y]=='.'){
cnt++;
ar[x][y]='#';
}
dfs(x+1,y);
dfs(x-1,y);
dfs(x,y+1);
dfs(x,y-1);
}
int main()
{
//ash;
int t;
sc(t);
for(int i=1;i<=t;i++){
cnt=1;
Memset(ar,-1);
sc2(c,r);
for(int j=0;j<r;j++){
for(int k=0;k<c;k++){
cin>>ar[j][k];
}
}
for(int j=0;j<r;j++){
for(int k=0;k<c;k++){
if(ar[j][k]=='@'){
dfs(j,k);
// pf("1");
}
}
}
pf("Case %d: %d\n",i,cnt);
}
return 0;
}