Compilare: user.cpp: In constructor ‘Node::Node(char, int, int, Node*, Node*)’: user.cpp:71:18: warning: ‘Node::right’ will be initialized after [-Wreorder] Node *left, *right; ^ user.cpp:70:17: warning: ‘int Node::hash1’ [-Wreorder] int pr, sz, hash1, hash2; ^ user.cpp:73:5: warning: when initialized here [-Wreorder] Node(char key, int pr, int sz, Node *left, Node *right): ^ user.cpp: In function ‘int main()’: user.cpp:149:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp: In constructor ‘InputReader::InputReader(const char*)’: user.cpp:12:48: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer, BUFFER_SIZE, 1, file); ^ user.cpp: In member function ‘void InputReader::advance()’: user.cpp:63:52: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer, BUFFER_SIZE, 1, file); ^