Compilare: user.cpp: In function ‘int main()’: user.cpp:156:36: warning: right operand of comma operator has no effect [-Wunused-value] for (add = 0, addon; add < m; ++ add, addon += (i + 1)) //Restul la impartirea cu m al numarului de chestii adaugate ^ user.cpp: In constructor ‘InputReader::InputReader(const char*)’: user.cpp:16:38: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer, 1, SIZE, input); ^ user.cpp: In member function ‘void InputReader::advance()’: user.cpp:61:42: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer, 1, SIZE, input); ^ user.cpp: In function ‘int main()’: user.cpp:151:17: warning: ‘addon’ may be used uninitialized in this function [-Wmaybe-uninitialized] int r, add, addon; ^