Eroare de compilare: main.cpp: In function 'int dfs(int)': main.cpp:2:106: warning: no return statement in function returning non-void [-Wreturn-type] using namespace std;int m[2005][2005];ifstream cin("alee.in");ofstream cout("alee.out");int dfs(int nod){}int main(){cin>>n;for(int i = 1; i <= n ; ++i){for(int j = 1; j <= n; ++j){cin>>m[i][j];}} ^ main.cpp: In function 'int main()': main.cpp:2:123: error: 'n' was not declared in this scope using namespace std;int m[2005][2005];ifstream cin("alee.in");ofstream cout("alee.out");int dfs(int nod){}int main(){cin>>n;for(int i = 1; i <= n ; ++i){for(int j = 1; j <= n; ++j){cin>>m[i][j];}} ^ Non zero exit status: 1