Compilare: user.cpp: In function ‘int main()’: user.cpp:15:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<=s.size()-1;i+=8) ^ user.cpp:62:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<=s.size()-1;i=i+8) ^ user.cpp:61:21: warning: variable ‘n’ set but not used [-Wunused-but-set-variable] int put,p=0,n=1,k; ^ user.cpp:61:25: warning: unused variable ‘k’ [-Wunused-variable] int put,p=0,n=1,k; ^ user.cpp:12:16: warning: unused variable ‘k’ [-Wunused-variable] int nr=0,i,k,nrr,j,ok=0; ^