Compilare: user.cpp: In function ‘int erast()’: user.cpp:29:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int divprim(int)’: user.cpp:46:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ In function ‘int erast()’: cc1plus: warning: iteration 29997u invokes undefined behavior [-Waggressive-loop-optimizations] user.cpp:15:5: note: containing loop for (int i=2; i<=30000; i++) { ^