Compilare: user.cpp: In function ‘void type_2(int)’: user.cpp:36:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Hash[hash_value].size(); ++i) { ^ user.cpp: In function ‘void debug()’: user.cpp:11:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hashuri.in", "r", stdin); ^ user.cpp:12:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hashuri.out", "w", stdout); ^