Lehmät

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

int main()
{
    char c;
    int count = 0;
    bool inside = false;
    bool last = false;
    
    int n;
    int m;
    cin >> n >> m;
    
    string line;
    do {
        cin >> line;
    }  while (line.find("*") == std::string::npos);

    while (true)
    {
        cin.get(c);
        if (c == '*')
        {
            if (last) break;
            inside = !inside;
            last = true;
        } else last = false;
        if (inside && c == '@') count++;
    }
    cout << count << "\n";
}

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