#include using namespace std; using ll = long long; using ld = long double; using P = pair; constexpr char newl = '\n'; constexpr ld PI = 3.14159265358979; // [Related]: monoid_op // 参考: http://kazuma8128.hatenablog.com/entry/2017/12/29/081929 template struct LazySegmentTree { using Tm = typename MonoidOp::Tm; using To = typename MonoidOp::To; int n; int h; vector data; vector lazy; LazySegmentTree() {} LazySegmentTree(int size, Tm initial_data_value = MonoidOp::unit()) { n = 1; h = 0; while (n < size) { h++; n <<= 1; } data.assign((n << 1), initial_data_value); lazy.assign((n << 1), MonoidOp::op_unit()); if (initial_data_value != MonoidOp::unit()) { for (int i = n - 1; i > 0; i--) data[i] = MonoidOp::merge(data[(i << 1)], data[(i << 1) + 1]); } } LazySegmentTree(const vector& v) { int size = v.size(); n = 1; h = 0; while (n < size) { h++; n <<= 1; } data.assign((n << 1), MonoidOp::unit()); lazy.assign((n << 1), MonoidOp::op_unit()); for (int i = 0; i < size; i++) data[i + n] = v[i]; for (int i = n - 1; i > 0; i--) data[i] = MonoidOp::merge(data[(i << 1)], data[(i << 1) + 1]); } // https://komiyam.hatenadiary.org/entry/20131202/1385992406 inline int getSegLen(int k) { return n / (1 << (31 - __builtin_clz(k))); } Tm getLeaf(int k) { return query(k, k + 1); } void push(int k) { if (lazy[k] == MonoidOp::op_unit()) return; int seg_len = getSegLen(k); data[k] = MonoidOp::apply(data[k], lazy[k], seg_len); if (seg_len > 1) { lazy[(k << 1)] = MonoidOp::op_merge(lazy[(k << 1)], lazy[k]); lazy[(k << 1) + 1] = MonoidOp::op_merge(lazy[(k << 1) + 1], lazy[k]); } lazy[k] = MonoidOp::op_unit(); } void update(int k) { Tm vl = MonoidOp::apply(data[(k << 1)], lazy[(k << 1)], getSegLen(k << 1)); Tm vr = MonoidOp::apply(data[(k << 1) + 1], lazy[(k << 1) + 1], getSegLen((k << 1) + 1)); data[k] = MonoidOp::merge(vl, vr); } //区間[a, b)に対する更新 void update(int a, int b, const To& x) { a += n, b += n - 1; for (int i = h; i > 0; i--) { push(a >> i); push(b >> i); } for (int l = a, r = b + 1; l < r; l >>= 1, r >>= 1) { if (l & 1) lazy[l] = MonoidOp::op_merge(lazy[l], x), l++; if (r & 1) --r, lazy[r] = MonoidOp::op_merge(lazy[r], x); } while (a >>= 1, b >>= 1, a) { if (lazy[a] == MonoidOp::op_unit()) update(a); if (lazy[b] == MonoidOp::op_unit()) update(b); } } //区間[a, b)に対するクエリに答える Tm query(int a, int b) { a += n, b += n - 1; for (int i = h; i > 0; i--) { push(a >> i); push(b >> i); } Tm vl = MonoidOp::unit(), vr = MonoidOp::unit(); for (int l = a, r = b + 1; l < r; l >>= 1, r >>= 1) { if (l & 1) { vl = MonoidOp::merge(vl, MonoidOp::apply(data[l], lazy[l], getSegLen(l))); l++; } if (r & 1) { --r; vr = MonoidOp::merge(MonoidOp::apply(data[r], lazy[r], getSegLen(r)), vr); } } return MonoidOp::merge(vl, vr); } }; template > struct Arm { using Tm = U; using To = V; static Tm merge(const Tm& x, const Tm& y) { return Tm(x.first + y.first, x.second + y.second); } static To op_merge(const To& x, const To& y) { To res{}; for (int i = 0; i < 2; i++) { for (int k = 0; k < 2; k++) { for (int j = 0; j < 2; j++) { res[i * 2 + j] += y[i * 2 + k] * x[k * 2 + j]; } } } return res; } static Tm apply(const Tm& vm, const To& vo, int seg_len) { return Tm( vo[0] * vm.first + vo[1] * vm.second, vo[2] * vm.first + vo[3] * vm.second ); } static constexpr Tm unit() { return {0, 0}; } static constexpr To op_unit() { return {1, 0, 0, 1}; } }; int main() { cin.tie(nullptr); ios::sync_with_stdio(false); int n, q; cin >> n >> q; vector d(n, 1); vector th(n, 0); LazySegmentTree< Arm<> > st(n, P(1, 0)); for (int i = 0; i < q; i++) { int com; cin >> com; if (com == 0) { int tar, x; cin >> tar >> x; --tar; ld th_diff = (x - th[tar]) * PI / 180; st.update(tar, n, {cos(th_diff), -sin(th_diff), sin(th_diff), cos(th_diff)}); th[tar] = x; } else if (com == 1) { int tar, x; cin >> tar >> x; --tar; ld len_mul = (ld)x / d[tar]; st.update(tar, tar + 1, {len_mul, 0, 0, len_mul}); d[tar] = x; } else { int tar; cin >> tar; P ans = st.query(0, tar); cout << fixed << setprecision(20) << ans.first << " " << ans.second << newl; } } return 0; }