Compilare: main.cpp: In member function 'void CHT::print()': main.cpp:56:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<dq.size();i++) ~^~~~~~~~~~ main.cpp: In function 'int32_t main()': main.cpp:66:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("puncte.in","r",stdin); ^ main.cpp:67:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("puncte.out","w",stdout); ^