Lehmät

#include <bits/stdc++.h>
 
using namespace std;
 
int main() {
    int n, m, c, t, x, cx, e, d, dc;
    char a;
    cin >> n >> m;
    c = 0;
    t = 0;
    x = 0;
    cx = 1;
    e = 0;
    d = 0;
    dc = 0;
    for (int i = 1; i <= n*m; i++) {
	cin >> a;
	if (a == 42 and e != 1) {
	    if (x == 0) {
		while (x == 0) {
		    cin >> a;
		    i = i+1;
		    cx = cx + 1;
		    if (cx == m+1) {
			x = 1;
			e = 1;
		    }
		    if (a != 42) {
			x = 1;
		    }
		}
	    }
	    else if (t == 0) {
		t = 1;
	    }
	    else {
		t = 0;
	    }
	}
	if (a == 42) {
	    dc = dc+1;
	}
	else {
	    dc = 0;
	}
	if (dc >= 3) {
	    d = 1;
	}
	if (a == 64 and t == 1 and d == 0 and e == 0) {
	    c = c+1;
	}
	if (a == 64 and e == 1 and d == 0) {
	    c = c+1;
	}
    }
    cout << c;
}

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