Eroare de compilare: user.cpp:2:18: error: cstlib: No such file or directory user.cpp:7: error: expected constructor, destructor, or type conversion before ‘(’ token user.cpp:8: error: expected constructor, destructor, or type conversion before ‘(’ token user.cpp: In function ‘int main()’: user.cpp:75: error: expected ‘}’ at end of input user.cpp:53: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:56: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:59: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:68: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result