Compilare: user.cpp: In function ‘void insertOrUpdate(const unsigned int&)’: user.cpp:42:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (; i<hashTable[key].size() && !was_found; i++) ^ user.cpp: In function ‘void decrementValue(const unsigned int&)’: user.cpp:61:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (; i<hashTable[key].size() && !was_found; i++) ^ user.cpp: In function ‘bool valueExists(const unsigned int&)’: user.cpp:86:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (; i<hashTable[key].size() && !was_found; i++) ^