結果
問題 | No.235 めぐるはめぐる (5) |
ユーザー | 👑 bo9chan |
提出日時 | 2023-07-25 23:37:47 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 3,368 ms / 10,000 ms |
コード長 | 28,931 bytes |
コンパイル時間 | 2,464 ms |
コンパイル使用メモリ | 193,980 KB |
実行使用メモリ | 48,320 KB |
最終ジャッジ日時 | 2024-10-02 16:45:37 |
合計ジャッジ時間 | 16,614 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 3,272 ms
47,600 KB |
testcase_01 | AC | 2,230 ms
48,320 KB |
testcase_02 | AC | 3,368 ms
47,836 KB |
ソースコード
#ifdef __LOCAL #include <mytemplate.hpp> // プリコンパイル済みヘッダ ~/local/include/mytemplate.hpp.gch #else #include <algorithm> #include <array> #include <bitset> #include <cassert> #include <climits> #include <cmath> #include <deque> #include <functional> #include <iomanip> #include <iostream> #include <iterator> #include <map> #include <memory> #include <numeric> #include <optional> #include <queue> #include <random> #include <set> #include <stack> #include <string> #include <utility> #include <vector> #endif using namespace std; // #include <boost/multiprecision/cpp_int.hpp> // using bint = boost::multiprecision::cpp_int; using int128 = __int128_t; using ll = long long; using vl = vector<ll>; using vvl = vector<vl>; using vb = vector<bool>; using vvb = vector<vb>; using vd = vector<double>; using vvd = vector<vd>; using vc = vector<char>; using vvc = vector<vc>; using pll = pair<ll, ll>; #define REP1(i, n) REP3(i, 0, n, 1) #define REP2(i, s, n) REP3(i, s, n, 1) #define REP3(i, s, n, d) for(ll i = (ll)(s); i < (ll)(n); i += (d)) #define REP_OVERLOAD(e1, e2, e3, e4, NAME,...) NAME #define rep(...) REP_OVERLOAD(__VA_ARGS__, REP3, REP2, REP1)(__VA_ARGS__) #define DEP1(i, n) DEP3(i, n, -1, 1) #define DEP2(i, n, s) DEP3(i, n, s, 1) #define DEP3(i, n, s, d) for(ll i = (ll)(n); (ll)(s) < i; i -= (d)) #define DEP_OVERLOAD(e1, e2, e3, e4, NAME,...) NAME #define dep(...) DEP_OVERLOAD(__VA_ARGS__, DEP3, DEP2, DEP1)(__VA_ARGS__) #define fore(e, a) for (auto&& e: (a)) #define len(a) (ll)(a).size() #define all(a) (a).begin(), (a).end() #define rall(a) (a).rbegin(), (a).rend() #define pb push_back #define eb emplace_back #define fi first #define se second #define th third /********* C O N S T A N T **********/ constexpr ll INF = LONG_LONG_MAX / 2 - 10000LL; // 4,611,686,018,427,377,903 ~= 4.6e+18, 19桁 const double PI = acos(-1); /********* P A I R **********/ template<class T, class U> inline pair<T, U>& operator+=(pair<T, U>& a, const pair<T, U> b); template<class T, class U> inline pair<T, U>& operator-=(pair<T, U>& a, const pair<T, U> b); template<class T, class U> inline pair<T, U>& operator*=(pair<T, U>& a, const pair<T, U> b); template<class T, class U> inline pair<T, U>& operator/=(pair<T, U>& a, const pair<T, U> b); template<class T, class U> inline pair<T, U>& operator%=(pair<T, U>& a, const pair<T, U> b); template<class T, class U, class V> inline pair<T, U>& operator+=(pair<T, U>& a, const V b); template<class T, class U, class V> inline pair<T, U>& operator-=(pair<T, U>& a, const V b); template<class T, class U, class V> inline pair<T, U>& operator*=(pair<T, U>& a, const V b); template<class T, class U, class V> inline pair<T, U>& operator/=(pair<T, U>& a, const V b); template<class T, class U, class V> inline pair<T, U>& operator%=(pair<T, U>& a, const V b); template<class T, class U, class V> inline pair<T, U> operator+(pair<T, U> a, const V& b); template<class T, class U, class V> inline pair<T, U> operator-(pair<T, U> a, const V& b); template<class T, class U, class V> inline pair<T, U> operator*(pair<T, U> a, const V& b); template<class T, class U, class V> inline pair<T, U> operator/(pair<T, U> a, const V& b); template<class T, class U, class V> inline pair<T, U> operator%(pair<T, U> a, const V& b); template<class T, class U> inline pair<T, U> operator+(pair<T, U> a); template<class T, class U> inline pair<T, U> operator-(pair<T, U> a); template<class T, class U> istream& operator >>(istream& stream, pair<T, U>& a); template<class T, class U> ostream& operator <<(ostream &stream, const pair<T, U>& a); /********* V E C T O R **********/ template<class T> inline vector<T>& operator+=(vector<T>& a, const vector<T> b); template<class T> inline vector<T>& operator-=(vector<T>& a, const vector<T> b); template<class T> inline vector<T>& operator*=(vector<T>& a, const vector<T> b); template<class T> inline vector<T>& operator/=(vector<T>& a, const vector<T> b); template<class T> inline vector<T>& operator%=(vector<T>& a, const vector<T> b); template<class T, class U> inline vector<T>& operator+=(vector<T>& a, const U b); template<class T, class U> inline vector<T>& operator-=(vector<T>& a, const U b); template<class T, class U> inline vector<T>& operator*=(vector<T>& a, const U b); template<class T, class U> inline vector<T>& operator/=(vector<T>& a, const U b); template<class T, class U> inline vector<T>& operator%=(vector<T>& a, const U b); template<class T, class U> inline vector<T> operator+(vector<T> a, const U& b); template<class T, class U> inline vector<T> operator-(vector<T> a, const U& b); template<class T, class U> inline vector<T> operator*(vector<T> a, const U& b); template<class T, class U> inline vector<T> operator/(vector<T> a, const U& b); template<class T, class U> inline vector<T> operator%(vector<T> a, const U& b); template<class T> inline vector<T> operator+(vector<T> a); template<class T> inline vector<T> operator-(vector<T> a); template<class T> istream& operator >>(istream& stream, vector<T>& a); template<class T> ostream& operator <<(ostream& stream, const vector<T>& v); template<class T> ostream& operator <<(ostream& stream, const vector<vector<T>>& vv); template<class T> inline T Sum(const vector<T>& v) {return reduce(all(v));} // v.size() == 0 のとき T() を返す template<class T> inline T Max(const vector<T>& v) {assert(v.size()); return *max_element(all(v));} template<class T> inline T Min(const vector<T>& v) {assert(v.size()); return *min_element(all(v));} template<class T> inline ll Argmax(const vector<T>& v) {assert(v.size()); return max_element(all(v)) - v.begin();} template<class T> inline ll Argmin(const vector<T>& v) {assert(v.size()); return min_element(all(v)) - v.begin();} template<class T, class U> inline bool Contains(const vector<T>& v, const U& a) {return find(all(v), a) != v.end();} template<class T> inline void Unique(vector<T>& v) {sort(all(v)); v.erase(unique(all(v)), v.end());} // ソートされたユニーク値のvectorに書き換える, O(NlogN). template<class T, class U> vector<T> make_vector(int n, U v) { return vector<T>(n, v); } template <class T, class... Args> auto make_vector(int n, Args... args) {auto val = make_vector<T>(args...); return make_vector<decltype(val)>(n, move(val));} /********* S E T **********/ template<class T> istream& operator >>(istream& stream, set<T>& st); template<class T> ostream& operator <<(ostream& stream, const set<T>& st); template<class T> inline T Max(const set<T>& st) {assert(st.size()); return *prev(st.end());} template<class T> inline T Min(const set<T>& st) {assert(st.size()); return *st.begin();} /********* M U L T I S E T **********/ template<class T> istream& operator >>(istream& stream, multiset<T>& st); template<class T> ostream& operator <<(ostream& stream, const multiset<T>& st); template<class T> inline T Max(const multiset<T>& st) {assert(st.size()); return *prev(st.end());} template<class T> inline T Min(const multiset<T>& st) {assert(st.size()); return *st.begin();} template<class T> inline bool EraseOne(multiset<T>& st, T x) {auto it=st.find(x); if (it!=st.end()) {st.erase(it); return true;} else return false;} // 要素xを1つ削除. 消せたらtrueを返す. /********* S T R I N G **********/ inline string ToUpper(const string& s) {string t; t.resize(s.size()); std::transform(all(s), t.begin(), ::toupper); return t; } inline string ToLower(const string& s) {string t; t.resize(s.size()); std::transform(all(s), t.begin(), ::tolower); return t; } /********* T R I O **********/ template<class T1, class T2, class T3> struct trio { T1 first; T2 second; T3 third; // コンストラクタ・代入演算子 trio() {first=T1(); second=T2(); third=T3();} trio(const T1& x) : first(x), second(x), third(x) {} trio(const T1& x, const T2& y, const T3& z) : first(x), second(y), third(z) {} trio(const trio& t) {first=t.first; second=t.second; third=t.third;} // コピーコンストラクタ trio& operator =(const trio& t) {first=t.first; second=t.second; third=t.third; return *this;} // 比較演算子 auto operator <=>(const trio&) const = default; // 単項演算子(+ -) trio operator +() const { return *this; } trio operator -() const { return (-1) * (*this); } // 複合代入演算子 trio& operator +=(const trio& t) {first += t.first; second += t.second; third += t.third; return *this;} trio& operator -=(const trio& t) {first -= t.first; second -= t.second; third -= t.third; return *this;} trio& operator *=(const trio& t) {first *= t.first; second *= t.second; third *= t.third; return *this;} trio& operator /=(const trio& t) {first /= t.first; second /= t.second; third /= t.third; return *this;} trio& operator %=(const trio& t) {first %= t.first; second %= t.second; third %= t.third; return *this;} // 算術演算子 friend trio operator +(const trio& lhs, const trio& rhs) {return trio(lhs) += rhs;} friend trio operator -(const trio& lhs, const trio& rhs) {return trio(lhs) -= rhs;} friend trio operator *(const trio& lhs, const trio& rhs) {return trio(lhs) *= rhs;} friend trio operator /(const trio& lhs, const trio& rhs) {return trio(lhs) /= rhs;} friend trio operator %(const trio& lhs, const trio& rhs) {return trio(lhs) %= rhs;} // 入出力 friend istream& operator >>(istream &stream, trio& t) {return stream >> t.first >> t.second >> t.third;} friend ostream& operator <<(ostream &stream, const trio& t) {return stream << t.first << " " << t.second << " " << t.third;} operator tuple<T1&, T2&, T3&>() {return tie(first, second, third);} }; using tll = trio<ll, ll, ll>; /********* R A N D O M **********/ struct Random { mt19937_64 rnd; Random() { random_device seed_gen; rnd.seed(seed_gen()); } ll randint(ll a, ll b) { // [a, b] uniform_int_distribution<ll> dist(a, b); return dist(rnd); } double randreal(double a, double b) { uniform_real_distribution<double> dist(a, b); return dist(rnd); } char randchar(char a, char b) { // [a, b] uniform_int_distribution<ll> dist(a, b); return dist(rnd); } }; /********* P R I N T **********/ template<class T> inline void print(const T& e); template<class H, class... T> inline void print(const H& h, const T&... t); template<class... T> inline void End(const T&... t); /********* D E B U G **********/ #ifdef __LOCAL #define debug(...) if(DEBUG) do{cout << '[' << #__VA_ARGS__ << "] ";debug_(__VA_ARGS__);}while(0) #else #define debug(...) #endif void dbg_(const long long& e); template<class T> void dbg_(const T& e); template<class T, class U> void dbg_(const pair<T, U>& p); template<class T1, class T2, class T3> void dbg_(const trio<T1, T2, T3>& t); template<class T> void debug_(const T& e); template<class T> void debug_(const vector<T>& v); template<class T> void debug_(const vector<vector<T>>& vv); template<class T, class U> void debug_(const map<T, U>& mp); template<class T, class U> void debug_(const vector<map<T, U>>& vm); template<class T> void debug_(const set<T>& st); template<class T> void debug_(const multiset<T>& st); template<class T> void debug_(const vector<set<T>>& vs); template<class T> void debug_(const vector<multiset<T>>& vs); template<class H, class... T> void debug_(const H& h, const T&... t); /********* O T H E R S **********/ template<class T, class U> inline bool chmin(T& a, U b) {if (a > b) {a = b; return true;} return false;} // bは値渡し! template<class T, class U> inline bool chmax(T& a, U b) {if (a < b) {a = b; return true;} return false;} template<class T, class U> inline auto Mod(const T& a, const U& m) {return (a % m + m) % m;} // 負もOK template<class T, class U> inline auto Ceil(const T& x, const U& y) {return x < 0 ? x/y : (x + y - 1) / y;} // 負もOK template<class T, class U> inline auto Floor(const T& x, const U& y) {return -(Ceil(-x, y)); } // 負もOK inline ll Isqrt(ll n) {assert(n >= 0); ll x = round(sqrt(n)); while(x * x > n) --x; return x;} inline ll Comb(ll n, ll r) {if (r < 0 || n < r) return 0; r = min(r, n - r); ll ret = 1; rep(i, r) {ret *= n - i; ret /= i + 1;} return ret;} // n=60, r=30までOK template<class T> inline T Pow(T x, ll n) {assert(n >= 0); T ret = 1; while(1) {if (n % 2) ret *= x; n /= 2; if(!n) return ret; x = x * x;}} // べき乗 mintもOK template<class T> inline T Aseries(T a, T d, ll n) {assert(n >= 0); return a * n + n * (n - 1) / 2 * d;} // 等差級数 mintもOK template<class T> inline T Gseries(T a, T r, ll n) {assert(n >= 0); if (r == 1) return a * n; else return a * (1 - Pow(r, n)) / (1 - r);} // 等比級数 mintもOK template<class T> using min_priority_queue = priority_queue<T, vector<T>, greater<T>>; inline bool Bit(ll b, int i) {assert(0 <= i && i < 64); return (b >> i) & 1;} inline ll Popcount(ll b) {return __builtin_popcountll(b);} inline ll Mask(ll n) {assert(0 <= n && n < 63); return (1LL << n) - 1LL;} // [0, n)のbitが立った64bit整数を返す。 inline ll Mask(ll n, ll m) {assert(n >= m); return Mask(n) ^ Mask(m);} // [m, n)のbitが立った64bit整数を返す。 /********* M O D **********/ #include <atcoder/lazysegtree> // https://atcoder.github.io/ac-library/production/document_ja/ #include <atcoder/modint> // https://atcoder.github.io/ac-library/production/document_ja/ using namespace atcoder; using mint = modint1000000007; // modint1000000007; istream& operator >>(istream& stream, mint& e) {ll n; stream >> n; e = n; return stream; } ostream& operator <<(ostream& stream, const mint& e) { stream << e.val(); return stream; } using vm = vector<mint>; using vvm = vector<vm>; /***************************************/ constexpr bool DEBUG = false; // HLD 参考:https://qiita.com/Pro_ktmr/items/4e1e051ea0561772afa3 // verify https://atcoder.jp/contests/past202010-open/tasks/past202010_m // verify https://onlinejudge.u-aizu.ac.jp/problems/GRL_5_C struct HLD { private: ll N; // 頂点数 vl arr; // HL分解結果(頂点配列) vl pos; // 頂点pのarr中の位置 vl leader; // 部分列の先頭の頂点番号 vl parent; // 頂点pの親頂点番号 vl depth; // 頂点pの深さ, rootはゼロ vl siz; // 頂点pを根とする部分木のサイズ // HLD実行. p: 頂点, l: 頂点pを含む連結成分のルート. void build(const vvl& G, ll p, ll l) { pos[p] = arr.size(); arr.pb(p); leader[p] = l; // Heavyな頂点vhを探索 & parentとdepthを埋める ll maxsiz = 0; ll vh = -1; fore(v, G[p]) { if (v == parent[p]) continue; parent[v] = p; depth[v] = depth[p] + 1; if (chmax(maxsiz, siz[v])) vh = v; } if (vh == -1) return; // 再帰的に構築 build(G, vh, l); fore(v, G[p]) { if (v == vh || v == parent[p]) continue; build(G, v, v); } } // 部分木サイズを計算 ll subtree_size(const vvl& G, ll p, ll par=-1) { if (siz[p] != 0) return siz[p]; ll ret = 1; fore(v, G[p]) { if (v == par) continue; ret += subtree_size(G, v, p); } return siz[p] = ret; } public: HLD(const vvl& G, ll root) : N(G.size()) { assert(0 <= root && root < N); // 初期化 pos.resize(N); leader.resize(N); parent.assign(N, -1); depth.assign(N, 0); siz.assign(N, 0); // 部分木サイズを計算 & HL分解を実行 subtree_size(G, root); build(G, root, root); } // 頂点uの位置を返す ll get(ll u) { assert(0 <= u && u < N); return pos[u]; } // パス u-v の区間[l, r)の配列を返す vector<pll> get(ll u, ll v) { assert(0 <= u && u < N); assert(0 <= v && v < N); vector<pll> ret; while(leader[u] != leader[v]) { if (depth[leader[u]] < depth[leader[v]]) swap(u, v); ret.eb(pos[leader[u]], pos[u] + 1); u = parent[leader[u]]; } if (pos[u] > pos[v]) swap(u, v); ret.eb(pos[u], pos[v] + 1); return ret; } // 頂点uを根とする部分木の区間[l, r)を返す pll subtree(ll u) { ll l = get(u); return {l, l + siz[u]}; } // 頂点 u, v のLCAを返す(!= 位置) ll lca(ll u, ll v) { assert(0 <= u && u < N); assert(0 <= v && v < N); while(leader[u] != leader[v]) { if (depth[leader[u]] < depth[leader[v]]) swap(u, v); u = parent[leader[u]]; } if (pos[u] > pos[v]) swap(u, v); return u; } }; // HLD hld(G, root); // ll idx = hld.get(u); // 頂点uの位置を返す // vector<pll> P = hld.get(u, v); // パス u-v の区間[l, r)の配列を返す // pll p = hld.subtree(u); // 頂点uを根とする部分木の区間[l, r)を返す // ll a = hld.lca(u, v); // 頂点 u, v のLCAを返す(!= 位置) // 累積和。hasegawa1さんコード改良 https://atcoder.jp/contests/abc229/submissions/27526433 template<typename T> struct Cumsum { ll N, H, W; vector<T> C; // 1D vector<vector<T>> D; // 2D explicit Cumsum() {} /* ------ 1D ------ */ explicit Cumsum(const vector<T>& vec): N(vec.size()), C(vec) { C.push_back(T()); exclusive_scan(all(C), C.begin(), T()); debug(N); } // [l, r) T operator()(int l, int r) const { if (l < 0 || r > N || l > r) { debug("HOGE"); debug(l, r, N); // return 0; } assert(0 <= l && l <= r && r <= N); return C[r] - C[l]; } // [0, x] T operator[](int x) const { return (*this)(0, x + 1); } /* ------ 2D ------ */ explicit Cumsum(const vector<vector<T>>& vec): H(vec.size()), W(vec[0].size()) { D.assign(H + 1, vector<T>(W + 1, T())); rep(h, 1, H + 1) { rep(w, 1, W + 1) { D[h][w] = vec[h - 1][w - 1] + D[h][w - 1] + D[h - 1][w] - D[h - 1][w - 1]; } } } // [[h1, w1], [h2, w2]) T operator()(int h1, int w1, int h2, int w2) const { assert(0 <= h1 && h1 <= h2 && h2 <= H); assert(0 <= w1 && w1 <= w2 && w2 <= W); return D[h2][w2] - D[h1][w2] - D[h2][w1] + D[h1][w1]; } // [p1, p2) T operator()(const pll& p1, const pll& p2) const { return (*this)(p1.fi, p1.se, p2.fi, p2.se); } // [0, p] T operator[](const pll& p) const { return (*this)(0, 0, p.fi + 1, p.se + 1); } }; // Cumsum C(vl{10, 20, 30, 40}); // 1D // C(1, 3); // 50, 区間 [1, 3) // Cumsum D(vvl{{1, 1, 1}, {1, 1, 1}, {1, 1, 1}, {1, 1, 1}}); // 2D // D(1, 1, 4, 3) or D(pll{1, 1}, pll{4, 3}); // 6, 区間 [(1, 1), (4, 3)) Cumsum<mint> cs; // 区間加算・区間和 struct S { mint value; ll l; ll r; }; using F = ll; S op(S a, S b) { return {a.value + b.value, min(a.l, b.l), max(a.r, b.r)}; } S e() { return {0, INF, -INF}; } S mapping(F f, S x) { debug(x.l, x.r); if (x.l < x.r) x.value += f * cs(x.l, x.r); return x; } F composition(F f, F g) { return f + g; } F id() { return 0; } int main() { cin.tie(nullptr); cout << fixed << setprecision(10); ll N; cin >> N; vm S_(N), C(N); cin >> S_ >> C; vvl G(N); rep(i, N - 1) { ll u, v; cin >> u >> v; u--, v--; G[u].pb(v); G[v].pb(u); } HLD hld(G, 0); vm C2(N); vector<S> vec0(N); rep(i, N) { ll j = hld.get(i); vec0[j] = {S_[i], j, j + 1}; C2[j] = C[i]; } fore(s, vec0) debug(s.value, s.l, s.r); cs = Cumsum<mint>(C2); lazy_segtree<S, op, e, F, mapping, composition, id> seg(vec0); ll Q; cin >> Q; vm ans; rep(q, Q) { debug(q); ll t, x, y, z; cin >> t >> x >> y; x--, y--; auto P = hld.get(x, y); if (t == 0) { cin >> z; fore(p, P) { auto [l, r] = p; debug("hoge1", l, r); seg.apply(l, r, z); } } else { mint tmp = 0; fore(p, P) { auto [l, r] = p; debug("hoge2", l, r); auto val = seg.prod(l, r); tmp += val.value; } ans.pb(tmp); } } fore(e, ans) print(e); } /********* P A I R **********/ template<class T, class U> inline pair<T, U>& operator+=(pair<T, U>& a, const pair<T, U> b) {a.fi += b.fi; a.se += b.se; return a;} template<class T, class U> inline pair<T, U>& operator-=(pair<T, U>& a, const pair<T, U> b) {a.fi -= b.fi; a.se -= b.se; return a;} template<class T, class U> inline pair<T, U>& operator*=(pair<T, U>& a, const pair<T, U> b) {a.fi *= b.fi; a.se *= b.se; return a;} template<class T, class U> inline pair<T, U>& operator/=(pair<T, U>& a, const pair<T, U> b) {a.fi /= b.fi; a.se /= b.se; return a;} template<class T, class U> inline pair<T, U>& operator%=(pair<T, U>& a, const pair<T, U> b) {a.fi %= b.fi; a.se %= b.se; return a;} template<class T, class U, class V> inline pair<T, U>& operator+=(pair<T, U>& a, const V b) {a.fi += b; a.se += b; return a;} template<class T, class U, class V> inline pair<T, U>& operator-=(pair<T, U>& a, const V b) {a.fi -= b; a.se -= b; return a;} template<class T, class U, class V> inline pair<T, U>& operator*=(pair<T, U>& a, const V b) {a.fi *= b; a.se *= b; return a;} template<class T, class U, class V> inline pair<T, U>& operator/=(pair<T, U>& a, const V b) {a.fi /= b; a.se /= b; return a;} template<class T, class U, class V> inline pair<T, U>& operator%=(pair<T, U>& a, const V b) {a.fi %= b; a.se %= b; return a;} template<class T, class U, class V> inline pair<T, U> operator+(pair<T, U> a, const V& b) {a += b; return a;} template<class T, class U, class V> inline pair<T, U> operator-(pair<T, U> a, const V& b) {a -= b; return a;} template<class T, class U, class V> inline pair<T, U> operator*(pair<T, U> a, const V& b) {a *= b; return a;} template<class T, class U, class V> inline pair<T, U> operator/(pair<T, U> a, const V& b) {a /= b; return a;} template<class T, class U, class V> inline pair<T, U> operator%(pair<T, U> a, const V& b) {a %= b; return a;} template<class T, class U> inline pair<T, U> operator+(pair<T, U> a) {return a;} template<class T, class U> inline pair<T, U> operator-(pair<T, U> a) {return a * (-1);} template<class T, class U> istream& operator >>(istream& stream, pair<T, U>& a) {stream >> a.fi >> a.se; return stream;} template<class T, class U> ostream& operator <<(ostream &stream, const pair<T, U>& a) { stream << a.fi << " " << a.se; return stream; } /********* V E C T O R **********/ template<class T> inline vector<T>& operator+=(vector<T>& a, const vector<T> b) {assert(a.size() == b.size()); rep(i, 0, a.size()) a[i] += b[i]; return a;} template<class T> inline vector<T>& operator-=(vector<T>& a, const vector<T> b) {assert(a.size() == b.size()); rep(i, 0, a.size()) a[i] -= b[i]; return a;} template<class T> inline vector<T>& operator*=(vector<T>& a, const vector<T> b) {assert(a.size() == b.size()); rep(i, 0, a.size()) a[i] *= b[i]; return a;} template<class T> inline vector<T>& operator/=(vector<T>& a, const vector<T> b) {assert(a.size() == b.size()); rep(i, 0, a.size()) a[i] /= b[i]; return a;} template<class T> inline vector<T>& operator%=(vector<T>& a, const vector<T> b) {assert(a.size() == b.size()); rep(i, 0, a.size()) a[i] %= b[i]; return a;} template<class T, class U> inline vector<T>& operator+=(vector<T>& a, const U b) {fore(e, a) e += b; return a;} template<class T, class U> inline vector<T>& operator-=(vector<T>& a, const U b) {fore(e, a) e -= b; return a;} template<class T, class U> inline vector<T>& operator*=(vector<T>& a, const U b) {fore(e, a) e *= b; return a;} template<class T, class U> inline vector<T>& operator/=(vector<T>& a, const U b) {fore(e, a) e /= b; return a;} template<class T, class U> inline vector<T>& operator%=(vector<T>& a, const U b) {fore(e, a) e %= b; return a;} template<class T, class U> inline vector<T> operator+(vector<T> a, const U& b) {a += b; return a;} template<class T, class U> inline vector<T> operator-(vector<T> a, const U& b) {a -= b; return a;} template<class T, class U> inline vector<T> operator*(vector<T> a, const U& b) {a *= b; return a;} template<class T, class U> inline vector<T> operator/(vector<T> a, const U& b) {a /= b; return a;} template<class T, class U> inline vector<T> operator%(vector<T> a, const U& b) {a %= b; return a;} template<class T> inline vector<T> operator+(vector<T> a) {return a;} template<class T> inline vector<T> operator-(vector<T> a) {return a * (-1);} template<class T> istream& operator >>(istream& stream, vector<T>& a) {fore(e, a) stream >> e; return stream;} template<class T> ostream& operator <<(ostream& stream, const vector<T>& v) {if(v.size()){stream << v[0]; rep(i, 1, v.size()) cout << " " << v[i];} return stream;} template<class T> ostream& operator <<(ostream& stream, const vector<vector<T>>& vv) {if(vv.size()){stream << vv[0]; rep(i, 1, vv.size()) cout << '\n' << vv[i];} return stream;} /********* S E T **********/ template<class T> istream& operator >>(istream& stream, set<T>& st) {T e; stream >> e; st.insert(e); return stream;} template<class T> ostream& operator <<(ostream& stream, const set<T>& st) {if(st.size()){auto it=st.begin(); stream << *it++; for(; it!=st.end(); it++) cout << " " << *it;} return stream;} /********* M U L T I S E T **********/ template<class T> istream& operator >>(istream& stream, multiset<T>& st) {T e; stream >> e; st.insert(e); return stream;} template<class T> ostream& operator <<(ostream& stream, const multiset<T>& st) {if(st.size()){auto it=st.begin(); stream << *it++; for(; it!=st.end(); it++) cout << " " << *it;} return stream;} /********* P R I N T **********/ template<class T> inline void print(const T& e) {cout << e << '\n';} template<class H, class... T> inline void print(const H& h, const T&... t) {cout << h << ' '; print(t...);} template<class... T> inline void End(const T&... t) {print(t...); exit(0);} /********* D E B U G **********/ void dbg_(const long long& e) {if (e == INF) cout << "INF"; else if (e == -INF) cout << "-INF"; else cout << e;} template<class T> void dbg_(const T& e) {cout << e;} template<class T, class U> void dbg_(const pair<T, U>& p) {cout << '('; dbg_(p.first); cout << ' '; dbg_(p.second); cout << ')';} template<class T1, class T2, class T3> void dbg_(const trio<T1, T2, T3>& t) {cout << '('; dbg_(t.first); cout << ' '; dbg_(t.second); cout << ' '; dbg_(t.third); cout << ')';} template<class T> void debug_(const T& e) {dbg_(e); cout << '\n';} template<class T> void debug_(const vector<T>& v) {if (v.size()){auto it=v.begin(); dbg_(*it++); for(; it!=v.end(); ++it){cout << ' '; dbg_(*it);}} cout << '\n';} template<class T> void debug_(const vector<vector<T>>& vv) {cout << '\n'; ll cnt=0; for(auto&& v : vv){cout << cnt++ << ": "; debug_(v);}} template<class T, class U> void debug_(const map<T, U>& mp) {if (mp.size()) {auto it = mp.begin(); dbg_(*it++); for(; it != mp.end(); ++it) {cout << ' '; dbg_(*it);}} cout << '\n';} template<class T, class U> void debug_(const vector<map<T, U>>& vm){cout << '\n'; ll cnt=0; for(auto&& mp : vm){cout << cnt++ << ": "; debug_(mp);}} template<class T> void debug_(const set<T>& st) {if(st.size()){auto it=st.begin(); dbg_(*it++); for(; it!=st.end(); ++it) {cout << ' '; dbg_(*it);}}cout << '\n';} template<class T> void debug_(const multiset<T>& st) {if(st.size()) {auto it=st.begin(); dbg_(*it++); for(; it != st.end(); ++it) {cout << ' '; dbg_(*it);}} cout << '\n';} template<class T> void debug_(const vector<set<T>>& vs) {cout << '\n'; ll cnt=0; for(auto&& st : vs){cout << cnt++ << ": "; debug_(st);}} template<class T> void debug_(const vector<multiset<T>>& vs) {cout << '\n'; ll cnt=0;for(auto&& st : vs){cout << cnt++ << ": "; debug_(st);}} template<class H, class... T> void debug_(const H& h, const T&... t) {dbg_(h); cout << ", "; debug_(t...);}