Compilare: user.cpp: In function ‘int main()’: user.cpp:14:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<=strlen(s)-1; i++) { ^ user.cpp:10:23: warning: unused variable ‘p’ [-Wunused-variable] char *s = new char, *p = new char; ^ user.cpp:12:16: warning: unused variable ‘nr_lit’ [-Wunused-variable] int nr_cuv=0, nr_lit=0, i; ^