/* Problem URL: https://codeforces.com/edu/course/2/lesson/7/2/practice/contest/289391/problem/I */ #include #include #include using namespace std; using namespace __gnu_pbds; template > using ordered_set = tree; #define V vector #define rmin(a, b) a = min(a, b) #define rmax(a, b) a = max(a, b) #define rep(i, lim) for (int i = 0; i < (lim); i++) #define nrep(i, s, lim) for (int i = s; i < (lim); i++) #define repv(i, v) for (auto &i : (v)) #define fillv(v) for (auto &itr_ : (v)) { cin >> itr_; } #define sortv(v) sort(v.begin(), v.end()) #define all(v) (v).begin(), (v).end() using vi = vector; using vvi = vector; using vvvi = vector; using vvvvi = vector; using ll = long long; using vl = vector; using vvl = vector; using vvvl = vector; using vvvvl = vector; template auto operator<<(ostream &os, const vector &vec)->ostream& { os << vec[0]; for (size_t i = 1; i < vec.size(); i++) { os << ' ' << vec[i]; } os << '\n'; return os; } template auto operator>>(istream &is, vector &vec)->istream& { for (auto &i : vec) { is >> i; } return is; } template auto operator<<(ostream &os, const vector> &vec)->ostream& { for (auto &i : vec) { os << i[0]; for (size_t j = 1; j < i.size(); j++) { os << ' ' << i[j]; } os << '\n'; } return os; } template auto operator>>(istream &is, vector> &vec)->istream& { for (auto &i : vec) { for (auto &j : i) { is >> j; } } return is; } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int n, m; cin >> n >> m; vi dsu(n); rep(i, n) { dsu[i] = i; } vi depth(n); function(int)> find_p = [&](int i) -> pair{ if (dsu[i] == i) { return {i, 0}; } auto ans = find_p(dsu[i]); dsu[i] = ans.first; depth[i] ^= ans.second; return {dsu[i], depth[i]}; }; auto join = [&](int a, int b) { auto ap = find_p(a); auto bp = find_p(b); dsu[bp.first] = ap.first; depth[bp.first] = (1 ^ bp.second ^ ap.second); }; int shift = 0; function func[] = { [&](int a, int b) { join(a, b); }, [&](int a, int b) { find_p(a); find_p(b); int ca = depth[a]; int cb = depth[b]; if (ca == cb) { cout << "YES\n"; shift++; return; } cout << "NO\n"; } }; while (m--) { int op, a, b; cin >> op >> a >> b; a = (a + shift) % n; b = (b + shift) % n; func[op](a, b); } }