Compilare: user.cpp: In function ‘int main()’: user.cpp:19:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=s.size();i++) ^ user.cpp:23:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1,j=1;i<=s.size(),j<=p.size();i++,j++) ^ user.cpp:23:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1,j=1;i<=s.size(),j<=p.size();i++,j++) ^ user.cpp:23:18: warning: value computed is not used [-Wunused-value] for(i=1,j=1;i<=s.size(),j<=p.size();i++,j++) ^ user.cpp:28:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=s.size();i++) ^ user.cpp:34:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=s.size();i++) ^