Eroare de compilare: user.cpp: In function ‘int renum()’: user.cpp:31: error: ‘memset’ was not declared in this scope user.cpp:49: warning: no return statement in function returning non-void user.cpp: In function ‘int insereaza()’: user.cpp:83: warning: no return statement in function returning non-void user.cpp: In function ‘int check_state(int, int)’: user.cpp:100: warning: no return statement in function returning non-void user.cpp: In function ‘int main()’: user.cpp:223: error: ‘stdin’ was not declared in this scope user.cpp:223: error: ‘freopen’ was not declared in this scope user.cpp:224: error: ‘stdout’ was not declared in this scope user.cpp:226: error: ‘scanf’ was not declared in this scope user.cpp:291: error: ‘printf’ was not declared in this scope user.cpp:219: warning: unused variable ‘start’ user.cpp:304: warning: unused variable ‘stop’