Compilare: user.cpp: In function ‘int main()’: user.cpp:72:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (dom[i].count() != cnt) { ^ user.cpp:32:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("colonii.in", "r", stdin); ^ user.cpp:33:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("colonii.out", "w", stdout); ^