Compilare: user.cpp: In function ‘int main()’: user.cpp:25:9: warning: variable ‘prim’ set but not used [-Wunused-but-set-variable] int prim,p,s,cp,j,a,b,x,nrdiv,n,i; ^ user.cpp:25:14: warning: variable ‘p’ set but not used [-Wunused-but-set-variable] int prim,p,s,cp,j,a,b,x,nrdiv,n,i; ^ user.cpp:23:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ssnd.in","r",stdin); ^ user.cpp:24:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ssnd.out","w",stdout); ^ user.cpp:26:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:28:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&x); ^