Eroare de compilare: user.cpp:5: error: 'int 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:7: warning: format '%d' expects type 'int*', but argument 4 has type 'double (*)(double)throw ()' user.cpp:7: warning: too many arguments for format user.cpp:8: error: expected identifier before '(' token user.cpp:8: error: expected `;' before '(' token user.cpp:10: error: pointer to a function used in arithmetic user.cpp:10: error: cannot convert 'double (*)(double)throw ()' to 'double' for argument '1' to 'double pow(double, double)' user.cpp:15: error: 'abs' was not declared in this scope user.cpp:17: error: 'abs' was not declared in this scope user.cpp:19: error: expected identifier before '(' token user.cpp:19: error: expected `;' before '(' token user.cpp:22: error: expected `;' before 's' user.cpp:23: warning: statement has no effect