Compilare: user.cpp: In function ‘int takeMin(int, int)’: user.cpp:21:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (newQ >= weightQueue.size()) ^ user.cpp: In function ‘int main()’: user.cpp:30:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("huffman.out", "w", stdout); ^