Compilare: user.cpp: In function ‘int main()’: user.cpp:20:21: warning: unused variable ‘pos’ [-Wunused-variable] int n=strlen(s),pos=-1,aux=0,ok=1; ^ user.cpp:20:28: warning: unused variable ‘aux’ [-Wunused-variable] int n=strlen(s),pos=-1,aux=0,ok=1; ^ user.cpp:20:34: warning: unused variable ‘ok’ [-Wunused-variable] int n=strlen(s),pos=-1,aux=0,ok=1; ^