C++ questions

Question 35 The default output of floating-point numbers is metric notation eleven decimal places four decimal places. scientific notation None of these. Question 45 In order to use the manipulator setw the program must include the header file istreamwidth osetw iomanipp; None of these. iocolumns Question 51 The header file fstream contains the definitions of the data types ifstream and ofstream. istream and ostream fistream and fostream None of these. findata and foutdata