Compilare: user.cpp: In function ‘void get_unique()’: user.cpp:59:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i(0); i < q.size(); i++) ~~^~~~~~~~~~ user.cpp: In function ‘void get_intervs()’: user.cpp:101:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i(0); i < newv.size(); i++) ~~^~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:142:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("proiectoare.in", "r", stdin); ^ user.cpp:143:44: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("proiectoare.out", "w", stdout); ^