Compilare: user.cpp: In function ‘short int last(Nr)’: user.cpp:13:8: warning: unused variable ‘p’ [-Wunused-variable] Nr p=simp(k); ^ user.cpp:14:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:19:9: warning: unused variable ‘t’ [-Wunused-variable] int t; ^ user.cpp:23:5: warning: ‘i’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(Nr i;i<n;i++) c=(c+last(i))%10; ^