Compilare: user.cpp: In function ‘int nrdiv(int)’: user.cpp:14:10: warning: statement has no effect [-Wunused-value] for(d; d*d<x; d++) ^ user.cpp:22:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:41:8: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<x<<" "<<maxd<<" "<<n; ^