#include using namespace std; using ll=long long; int main(){ int n,m; cin>>n>>m; vector a(n); for(int i=0;i>a[i]; vector> graph(n); for(int i=0;i>u>>v; u--;v--; graph[u].push_back(v); graph[v].push_back(u); } for(int s=0;s<(1< v(n); for(int j=0;j>j&1)v[j]=true; bool ok=true; for(int j=0;j