Compilare: user.cpp: In function ‘void tabel()’: user.cpp:11:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=1;i<p.length();i++) ^ user.cpp: In function ‘void rez()’: user.cpp:27:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<s.length();i++) ^ user.cpp:36:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (x==p.length()-1) ^