Lehmät

input/code.cpp: In function 'int main()':
input/code.cpp:38:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |     for (int i = 0; i < cows.size(); i++) {
      |                     ~~^~~~~~~~~~~~~

#include <iostream>
#include <vector>

using namespace std;

int main() {
    int n, m;
    cin >> n >> m;
    char farm[n][m];
    
    int min_x, max_x, min_y, max_y, pencows;
    min_x = max_x = min_y = max_y = pencows = 0;
    bool first = true;
    
    vector<pair<int, int>> cows;
    
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            cin >> farm[i][j];
            if (farm[i][j] == '*') {
                if (first) {
                    min_x = max_x = i;
                    min_y = max_y = j;
                    first = false;
                } else {
                    if (i < min_x) min_x = i;
                    else if (i > max_x) max_x = i;
                    else if (j < min_y) min_y = j;
                    else if (j > max_y) max_y = j;
                }
            } else if (farm[i][j] == '@') {
                cows.push_back({i, j});
            }
        }
    }
    
    for (int i = 0; i < cows.size(); i++) {
        if (cows[i].first > min_x && cows[i].first < max_x && cows[i].second > min_y && cows[i].second < max_y) {
            pencows++;
        }
    }
    
    cout << pencows;
}

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