Compilare: user.cpp: In function ‘int main()’: user.cpp:76:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < x.size(); ++i ) ^ user.cpp:78:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < y.size(); ++i ) ^ user.cpp:89:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < x.size(); ++i ) ^ user.cpp:92:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < y.size(); ++i ) ^ user.cpp: In function ‘int GetPos(VI, int)’: user.cpp:116:9: warning: unused variable ‘i’ [-Wunused-variable] int i, p2, n = v.size(); ^ user.cpp:116:12: warning: unused variable ‘p2’ [-Wunused-variable] int i, p2, n = v.size(); ^