//https://ncode.syosetu.com/n4830bu/261/ #include using namespace std; using ll = long long; #include "atcoder/all" using namespace atcoder; int main() { int N, K; cin >> N >> K; vector P(N); iota(P.begin(), P.end(), 0); for (int i = 0; i < K; i++) { int x, y; cin >> x >> y; x--; y--; swap(P[x], P[y]); } dsu uf(N); for (int i = 0; i < N; i++) { uf.merge(i, P[i]); } auto groups = uf.groups(); int Q; cin >> Q; while (Q--) { vector R, M; vector A(N); for (auto&& a : A) { cin >> a; a--; } vector maine(N); bool book = true; for (auto&& group : groups) { int r, m = group.size(); for (auto&& x : group) { maine[x] = x; } for (r = 0; r < m; r++) { bool flag = true; for (auto&& x : group) { if (maine[x] != A[x]) { flag = false; break; } } if (flag) break; for (auto&& x : group) maine[x] = P[maine[x]]; } if (r == m) { book = false; break; } M.emplace_back(m); R.emplace_back(r); } if (!book) { cout << -1 << endl; continue; } auto [y, z] = crt(R, M); if (y == 0) y += z; cout << y << endl; } }