Eroare de compilare: user.cpp:8: error: ‘double y1’ redeclared as different kind of symbol /usr/include/bits/mathcalls.h:242: error: previous declaration of ‘double y1(double)’ user.cpp: In function ‘int main()’: user.cpp:15: warning: format ‘%lf’ expects type ‘double*’, but argument 6 has type ‘double (*)(double)throw ()’ user.cpp:18: error: invalid operands of types ‘double(double)throw ()’ and ‘double’ to binary ‘operator-’ user.cpp:18: error: in evaluation of ‘operator-=(double(double)throw (), double)’ user.cpp:20: error: invalid operands of types ‘double(double)throw ()’ and ‘double(double)throw ()’ to binary ‘operator*’ user.cpp:31: error: invalid operands of types ‘double’ and ‘double(double)throw ()’ to binary ‘operator-’ user.cpp:31: error: invalid operands of types ‘double’ and ‘double(double)throw ()’ to binary ‘operator-’ user.cpp:12: warning: unused variable ‘i’ user.cpp:12: warning: unused variable ‘j’ user.cpp:13: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:14: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result