Compilare: user.cpp: In function ‘int expand(int, int)’: user.cpp:17:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(cnt = 0 ; j + cnt < text.size() ; ++ cnt) ^ user.cpp: In function ‘void zalg()’: user.cpp:25:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1 ; i < text.size() ; ++ i) { ^ user.cpp:48:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(z[i] >= a.size()) ^