Lehmät

#include <bits/stdc++.h>
using namespace std;
#define FOR(i, n) for(decltype(n) i=0;i<(n);++i)
#define FORI(i, s, n) for(decltype(n) i=(s);i<(n);++i)
#define BE(t) t.begin(), t.end()
#define RBE(t) t.rbegin(), t.rend()
#define evn(n) (!((n) & 1))
#define PB push_back
#define MP(f, s) make_pair((f), (s))
#define F first
#define S second
#define pmod(a, m) ((a)%(m)+(m))%(m)
typedef unsigned long long ull;
typedef long long ll;
#define MOD ((int)1e9+7)
#define CEILDIV(a, b) (((a)-1)/(b)+1)

int main(){
	int n, m, r = 0;
	cin >> n >> m;
	for(int i = 0; i < n; ++i){
		string s;
		cin >> s;
		int j;
		for(j = 0; j < m && s[j] != '*'; ++j);
		++j;
		for(; j < m && s[j] != '*'; ++j){
			if(s[j] == '@')
				++r;
		}
	}
	cout << r;
}

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 1, 2

Verdict: ACCEPTED

Test 3

Group: 1, 2

Verdict: ACCEPTED

Test 4

Group: 1, 2

Verdict: ACCEPTED

Test 5

Group: 1, 2

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED