#include #include #include using namespace std; int N,A[5<<17]; int main() { ios::sync_with_stdio(false); cin.tie(nullptr); cin>>N; int AX=0; for(int i=0;i>A[i]; AX^=A[i]; } if(AX!=0) { cout<<"No"<bs; for(int i=0;i0)bs.push_back(a); } cout<<(bs.size()+1