Compilare: user.cpp: In function ‘int main()’: user.cpp:19:43: warning: operation on ‘x’ may be undefined [-Wsequence-point] if(last) v[x++]=v[last]+v[x-1]; ^ user.cpp:26:42: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long int’ [-Wformat=] for(i=1;i<=x-1;i++) printf("%d ",v[i]); ^