Compilare: user.cpp: In function ‘int kitolt(int, int, int, int)’: user.cpp:40:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:92:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<o.size();i++) ^ user.cpp: In function ‘int negyzet(int, int, int)’: user.cpp:66:1: warning: control reaches end of non-void function [-Wreturn-type] } ^