#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; using ll = long long; constexpr int INF = 1001001001; constexpr int mod = 1000000007; // constexpr int mod = 998244353; template inline bool chmax(T& x, T y){ if(x < y){ x = y; return true; } return false; } template inline bool chmin(T& x, T y){ if(x > y){ x = y; return true; } return false; } struct CountUnionFind{ int sz; vector par; vector rank; vector cnt; CountUnionFind(int n) : sz(n) { par.resize(sz); rank.assign(sz, 0); cnt.assign(sz, 1); for(int i = 0; i < sz; ++i){ par[i] = i; } } int find(int x){ if(par[x] == x) return x; else return par[x] = find(par[x]); } bool same(int x, int y){ return find(x) == find(y); } bool unite(int x, int y){ x = find(x), y = find(y); if(x == y) return false; if(rank[x] < rank[y]){ par[x] = y; cnt[y] += cnt[x]; } else{ par[y] = x; cnt[x] += cnt[y]; if(rank[x] == rank[y]) ++rank[x]; } return true; } int get_cnt(int x){ return cnt[find(x)]; } }; struct mint { int x; mint() : x(0) {} mint(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {} mint& operator+=(const mint& p){ if((x += p.x) >= mod) x -= mod; return *this; } mint& operator-=(const mint& p){ if((x -= p.x) < 0) x += mod; return *this; } mint& operator*=(const mint& p){ x = (int)(1LL * x * p.x % mod); return *this; } mint& operator/=(const mint& p){ *this *= p.inverse(); return *this; } mint operator-() const { return mint(-x); } mint operator+(const mint& p) const { return mint(*this) += p; } mint operator-(const mint& p) const { return mint(*this) -= p; } mint operator*(const mint& p) const { return mint(*this) *= p; } mint operator/(const mint& p) const { return mint(*this) /= p; } bool operator==(const mint& p) const { return x == p.x; } bool operator!=(const mint& p) const { return x != p.x; } mint pow(int64_t n) const { mint res = 1, mul = x; while(n > 0){ if(n & 1) res *= mul; mul *= mul; n >>= 1; } return res; } mint inverse() const { return pow(mod - 2); } friend ostream& operator<<(ostream& os, const mint& p){ return os << p.x; } friend istream& operator>>(istream& is, mint& p){ int64_t val; is >> val; p = mint(val); return is; } }; int main(){ ios::sync_with_stdio(false); cin.tie(nullptr); int N, M, a, b; cin >> N >> M; CountUnionFind uf(N); map p; vector> vertices(N); for(int i = 0; i < N; ++i){ p[i] = 1; vertices[i].emplace_back(i); } for(int i = 0; i < M; ++i){ cin >> a >> b; --a, --b; if(uf.same(a, b)) continue; int A = uf.find(a), B = uf.find(b); int cnta = uf.get_cnt(A), cntb = uf.get_cnt(B); if(cnta < cntb){ vertices[A].clear(); p[A] = p[B]; } else if(cnta > cntb){ vertices[B].clear(); p[B] = p[A]; } else{ if(p[A] == 1) p[A] = p[B] = mint(1) / 2; else{ mint nxt = p[A] * p[B]; p[A] = p[B] = nxt; } } uf.unite(a, b); if(uf.find(a) == A){ if(vertices[A].size() < vertices[B].size()){ swap(vertices[A], vertices[B]); } while(vertices[B].size()){ vertices[A].push_back(vertices[B].back()); vertices[B].pop_back(); } } else{ if(vertices[A].size() > vertices[B].size()){ swap(vertices[A], vertices[B]); } while(vertices[A].size()){ vertices[B].push_back(vertices[A].back()); vertices[A].pop_back(); } } } vector ans(N); for(int i = 0; i < N; ++i){ for(int v : vertices[i]) ans[v] = p[uf.find(v)]; } for(int i = 0; i < N; ++i) cout << ans[i] << '\n'; return 0; }