Compilare: user.cpp: In function ‘int main()’: user.cpp:21:11: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] q[m+1]=NULL; ^ user.cpp:22:9: warning: unused variable ‘lgg’ [-Wunused-variable] int lgg=strlen(s); ^ user.cpp:23:9: warning: unused variable ‘inceput’ [-Wunused-variable] int inceput=-1; ^ user.cpp:24:9: warning: unused variable ‘sfarsit’ [-Wunused-variable] int sfarsit=16; ^