Eroare de compilare: user.cpp:9:17: error: ISO C++ forbids declaration of ‘operator<’ with no type [-fpermissive] operator < () ^ user.cpp:9:17: error: ‘int cutie::operator<()’ must take exactly one argument user.cpp:9:17: error: expected ‘;’ at end of member declaration user.cpp: In function ‘int update(int, int, int)’: user.cpp:38:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:47:9: error: ‘v’ was not declared in this scope v[i]={a,b,c}; ^