Compilare: user.cpp: In function ‘int main()’: user.cpp:31:18: warning: unused variable ‘d’ [-Wunused-variable] int a, b, i, d, m_div, m_q, m_val, t; ^ user.cpp:47:13: warning: ‘m_val’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout << m_val << ' ' << m_div << ' ' << m_q << ' '; ^ user.cpp:47:45: warning: ‘m_q’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout << m_val << ' ' << m_div << ' ' << m_q << ' '; ^