Compilare: user.cpp: In function ‘int main()’: user.cpp:15:22: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[100001]’ [-Wformat=] fscanf(f, "%s", &sir); ^ user.cpp:14:6: warning: unused variable ‘n’ [-Wunused-variable] int n, index = 0; char c; ^ user.cpp:14:9: warning: unused variable ‘index’ [-Wunused-variable] int n, index = 0; char c; ^