Eroare de compilare: user.cpp:2:22: error: graphics.h: No such file or directory user.cpp: In function ‘int main()’: user.cpp:13: error: ‘initwindow’ was not declared in this scope user.cpp:14: error: ‘line’ was not declared in this scope user.cpp:20: error: ‘xmax’ was not declared in this scope user.cpp:20: error: ‘max’ was not declared in this scope user.cpp:20: error: ‘max’ was not declared in this scope user.cpp:20: error: declaration of ‘<typeprefixerror>max’ user.cpp:20: error: conflicts with previous declaration ‘<typeprefixerror>max’ user.cpp:21: error: ‘circle’ was not declared in this scope user.cpp:22: error: ‘kbhit’ was not declared in this scope user.cpp:23: error: ‘closegraph’ was not declared in this scope user.cpp:9: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:12: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result