結果
| 問題 | No.1216 灯籠流し/Lanterns |
| ユーザー |
 maspy
|
| 提出日時 | 2023-07-03 07:45:31 |
| 言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 34,362 bytes |
| コンパイル時間 | 10,386 ms |
| コンパイル使用メモリ | 337,372 KB |
| 実行使用メモリ | 45,488 KB |
| 最終ジャッジ日時 | 2023-09-24 04:37:27 |
| 合計ジャッジ時間 | 19,809 ms |
|
ジャッジサーバーID （参考情報） |
judge12 / judge14 |
（要ログイン）
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 | 2 ms
4,380 KB |
| testcase_01 | WA | - |
| testcase_02 | AC | 1 ms
4,380 KB |
| testcase_03 | AC | 2 ms
4,376 KB |
| testcase_04 | AC | 19 ms
16,300 KB |
| testcase_05 | WA | - |
| testcase_06 | WA | - |
| testcase_07 | WA | - |
| testcase_08 | WA | - |
| testcase_09 | WA | - |
| testcase_10 | WA | - |
| testcase_11 | WA | - |
| testcase_12 | AC | 15 ms
13,248 KB |
| testcase_13 | WA | - |
| testcase_14 | AC | 25 ms
15,780 KB |
| testcase_15 | AC | 39 ms
17,444 KB |
| testcase_16 | AC | 42 ms
25,172 KB |
| testcase_17 | WA | - |
| testcase_18 | AC | 42 ms
16,456 KB |
| testcase_19 | AC | 178 ms
34,020 KB |
| testcase_20 | AC | 87 ms
24,324 KB |
| testcase_21 | AC | 50 ms
20,456 KB |
| testcase_22 | AC | 141 ms
22,628 KB |
| testcase_23 | AC | 25 ms
22,228 KB |
| testcase_24 | WA | - |
| testcase_25 | WA | - |
| testcase_26 | WA | - |
| testcase_27 | WA | - |
| testcase_28 | WA | - |
| testcase_29 | WA | - |
| testcase_30 | WA | - |
| testcase_31 | WA | - |
| testcase_32 | WA | - |
| testcase_33 | WA | - |
| testcase_34 | AC | 174 ms
33,956 KB |
| testcase_35 | AC | 182 ms
38,208 KB |
| testcase_36 | AC | 55 ms
23,924 KB |
| testcase_37 | AC | 135 ms
27,480 KB |
| testcase_38 | WA | - |
| testcase_39 | AC | 190 ms
33,604 KB |
| testcase_40 | AC | 153 ms
36,844 KB |
| testcase_41 | AC | 155 ms
36,644 KB |
| testcase_42 | AC | 148 ms
37,312 KB |
| testcase_43 | AC | 151 ms
37,320 KB |
| testcase_44 | AC | 146 ms
36,772 KB |
| testcase_45 | WA | - |
| testcase_46 | WA | - |
| testcase_47 | WA | - |
| testcase_48 | WA | - |
| testcase_49 | WA | - |
ソースコード
#line 1 "main.cpp"
#define PROBLEM "https://yukicoder.me/problems/no/1216"
#line 1 "library/my_template.hpp"
#if defined(LOCAL)
#include <my_template_compiled.hpp>
#else
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using u32 = unsigned int;
using u64 = unsigned long long;
using i128 = __int128;
template <class T>
constexpr T infty = 0;
template <>
constexpr int infty<int> = 1'000'000'000;
template <>
constexpr ll infty<ll> = ll(infty<int>) * infty<int> * 2;
template <>
constexpr u32 infty<u32> = infty<int>;
template <>
constexpr u64 infty<u64> = infty<ll>;
template <>
constexpr i128 infty<i128> = i128(infty<ll>) * infty<ll>;
template <>
constexpr double infty<double> = infty<ll>;
template <>
constexpr long double infty<long double> = infty<ll>;
using pi = pair<ll, ll>;
using vi = vector<ll>;
template <class T>
using vc = vector<T>;
template <class T>
using vvc = vector<vc<T>>;
template <class T>
using vvvc = vector<vvc<T>>;
template <class T>
using vvvvc = vector<vvvc<T>>;
template <class T>
using vvvvvc = vector<vvvvc<T>>;
template <class T>
using pq = priority_queue<T>;
template <class T>
using pqg = priority_queue<T, vector<T>, greater<T>>;
#define vv(type, name, h, ...) \
vector<vector<type>> name(h, vector<type>(__VA_ARGS__))
#define vvv(type, name, h, w, ...) \
vector<vector<vector<type>>> name( \
h, vector<vector<type>>(w, vector<type>(__VA_ARGS__)))
#define vvvv(type, name, a, b, c, ...) \
vector<vector<vector<vector<type>>>> name( \
a, vector<vector<vector<type>>>( \
b, vector<vector<type>>(c, vector<type>(__VA_ARGS__))))
// https://trap.jp/post/1224/
#define FOR1(a) for (ll _ = 0; _ < ll(a); ++_)
#define FOR2(i, a) for (ll i = 0; i < ll(a); ++i)
#define FOR3(i, a, b) for (ll i = a; i < ll(b); ++i)
#define FOR4(i, a, b, c) for (ll i = a; i < ll(b); i += (c))
#define FOR1_R(a) for (ll i = (a)-1; i >= ll(0); --i)
#define FOR2_R(i, a) for (ll i = (a)-1; i >= ll(0); --i)
#define FOR3_R(i, a, b) for (ll i = (b)-1; i >= ll(a); --i)
#define overload4(a, b, c, d, e, ...) e
#define overload3(a, b, c, d, ...) d
#define FOR(...) overload4(__VA_ARGS__, FOR4, FOR3, FOR2, FOR1)(__VA_ARGS__)
#define FOR_R(...) overload3(__VA_ARGS__, FOR3_R, FOR2_R, FOR1_R)(__VA_ARGS__)
#define FOR_subset(t, s) \
for (ll t = (s); t >= 0; t = (t == 0 ? -1 : (t - 1) & (s)))
#define all(x) x.begin(), x.end()
#define len(x) ll(x.size())
#define elif else if
#define eb emplace_back
#define mp make_pair
#define mt make_tuple
#define fi first
#define se second
#define stoi stoll
int popcnt(int x) { return __builtin_popcount(x); }
int popcnt(u32 x) { return __builtin_popcount(x); }
int popcnt(ll x) { return __builtin_popcountll(x); }
int popcnt(u64 x) { return __builtin_popcountll(x); }
// (0, 1, 2, 3, 4) -> (-1, 0, 1, 1, 2)
int topbit(int x) { return (x == 0 ? -1 : 31 - __builtin_clz(x)); }
int topbit(u32 x) { return (x == 0 ? -1 : 31 - __builtin_clz(x)); }
int topbit(ll x) { return (x == 0 ? -1 : 63 - __builtin_clzll(x)); }
int topbit(u64 x) { return (x == 0 ? -1 : 63 - __builtin_clzll(x)); }
// (0, 1, 2, 3, 4) -> (-1, 0, 1, 0, 2)
int lowbit(int x) { return (x == 0 ? -1 : __builtin_ctz(x)); }
int lowbit(u32 x) { return (x == 0 ? -1 : __builtin_ctz(x)); }
int lowbit(ll x) { return (x == 0 ? -1 : __builtin_ctzll(x)); }
int lowbit(u64 x) { return (x == 0 ? -1 : __builtin_ctzll(x)); }
template <typename T, typename U>
T ceil(T x, U y) {
return (x > 0 ? (x + y - 1) / y : x / y);
}
template <typename T, typename U>
T floor(T x, U y) {
return (x > 0 ? x / y : (x - y + 1) / y);
}
template <typename T, typename U>
pair<T, T> divmod(T x, U y) {
T q = floor(x, y);
return {q, x - q * y};
}
template <typename T, typename U>
T SUM(const vector<U> &A) {
T sum = 0;
for (auto &&a: A) sum += a;
return sum;
}
#define MIN(v) *min_element(all(v))
#define MAX(v) *max_element(all(v))
#define LB(c, x) distance((c).begin(), lower_bound(all(c), (x)))
#define UB(c, x) distance((c).begin(), upper_bound(all(c), (x)))
#define UNIQUE(x) \
sort(all(x)), x.erase(unique(all(x)), x.end()), x.shrink_to_fit()
template <typename T>
T POP(deque<T> &que) {
T a = que.front();
que.pop_front();
return a;
}
template <typename T>
T POP(pq<T> &que) {
T a = que.top();
que.pop();
return a;
}
template <typename T>
T POP(pqg<T> &que) {
assert(!que.empty());
T a = que.top();
que.pop();
return a;
}
template <typename T>
T POP(vc<T> &que) {
assert(!que.empty());
T a = que.back();
que.pop_back();
return a;
}
template <typename F>
ll binary_search(F check, ll ok, ll ng, bool check_ok = true) {
if (check_ok) assert(check(ok));
while (abs(ok - ng) > 1) {
auto x = (ng + ok) / 2;
tie(ok, ng) = (check(x) ? mp(x, ng) : mp(ok, x));
}
return ok;
}
template <typename F>
double binary_search_real(F check, double ok, double ng, int iter = 100) {
FOR(iter) {
double x = (ok + ng) / 2;
tie(ok, ng) = (check(x) ? mp(x, ng) : mp(ok, x));
}
return (ok + ng) / 2;
}
template <class T, class S>
inline bool chmax(T &a, const S &b) {
return (a < b ? a = b, 1 : 0);
}
template <class T, class S>
inline bool chmin(T &a, const S &b) {
return (a > b ? a = b, 1 : 0);
}
// ? は -1
vc<int> s_to_vi(const string &S, char first_char) {
vc<int> A(S.size());
FOR(i, S.size()) { A[i] = (S[i] != '?' ? S[i] - first_char : -1); }
return A;
}
template <typename T, typename U>
vector<T> cumsum(vector<U> &A, int off = 1) {
int N = A.size();
vector<T> B(N + 1);
FOR(i, N) { B[i + 1] = B[i] + A[i]; }
if (off == 0) B.erase(B.begin());
return B;
}
// stable sort
template <typename T>
vector<int> argsort(const vector<T> &A) {
vector<int> ids(len(A));
iota(all(ids), 0);
sort(all(ids),
[&](int i, int j) { return (A[i] == A[j] ? i < j : A[i] < A[j]); });
return ids;
}
// A[I[0]], A[I[1]], ...
template <typename T>
vc<T> rearrange(const vc<T> &A, const vc<int> &I) {
vc<T> B(len(I));
FOR(i, len(I)) B[i] = A[I[i]];
return B;
}
#endif
#line 1 "library/other/io.hpp"
// based on yosupo's fastio
#include <unistd.h>
namespace fastio {
#define FASTIO
// クラスが read(), print() を持っているかを判定するメタ関数
struct has_write_impl {
template <class T>
static auto check(T &&x) -> decltype(x.write(), std::true_type{});
template <class T>
static auto check(...) -> std::false_type;
};
template <class T>
class has_write : public decltype(has_write_impl::check<T>(std::declval<T>())) {
};
struct has_read_impl {
template <class T>
static auto check(T &&x) -> decltype(x.read(), std::true_type{});
template <class T>
static auto check(...) -> std::false_type;
};
template <class T>
class has_read : public decltype(has_read_impl::check<T>(std::declval<T>())) {};
struct Scanner {
FILE *fp;
char line[(1 << 15) + 1];
size_t st = 0, ed = 0;
void reread() {
memmove(line, line + st, ed - st);
ed -= st;
st = 0;
ed += fread(line + ed, 1, (1 << 15) - ed, fp);
line[ed] = '\0';
}
bool succ() {
while (true) {
if (st == ed) {
reread();
if (st == ed) return false;
}
while (st != ed && isspace(line[st])) st++;
if (st != ed) break;
}
if (ed - st <= 50) {
bool sep = false;
for (size_t i = st; i < ed; i++) {
if (isspace(line[i])) {
sep = true;
break;
}
}
if (!sep) reread();
}
return true;
}
template <class T, enable_if_t<is_same<T, string>::value, int> = 0>
bool read_single(T &ref) {
if (!succ()) return false;
while (true) {
size_t sz = 0;
while (st + sz < ed && !isspace(line[st + sz])) sz++;
ref.append(line + st, sz);
st += sz;
if (!sz || st != ed) break;
reread();
}
return true;
}
template <class T, enable_if_t<is_integral<T>::value, int> = 0>
bool read_single(T &ref) {
if (!succ()) return false;
bool neg = false;
if (line[st] == '-') {
neg = true;
st++;
}
ref = T(0);
while (isdigit(line[st])) { ref = 10 * ref + (line[st++] & 0xf); }
if (neg) ref = -ref;
return true;
}
template <typename T,
typename enable_if<has_read<T>::value>::type * = nullptr>
inline bool read_single(T &x) {
x.read();
return true;
}
bool read_single(double &ref) {
string s;
if (!read_single(s)) return false;
ref = std::stod(s);
return true;
}
bool read_single(char &ref) {
string s;
if (!read_single(s) || s.size() != 1) return false;
ref = s[0];
return true;
}
template <class T>
bool read_single(vector<T> &ref) {
for (auto &d: ref) {
if (!read_single(d)) return false;
}
return true;
}
template <class T, class U>
bool read_single(pair<T, U> &p) {
return (read_single(p.first) && read_single(p.second));
}
template <size_t N = 0, typename T>
void read_single_tuple(T &t) {
if constexpr (N < std::tuple_size<T>::value) {
auto &x = std::get<N>(t);
read_single(x);
read_single_tuple<N + 1>(t);
}
}
template <class... T>
bool read_single(tuple<T...> &tpl) {
read_single_tuple(tpl);
return true;
}
void read() {}
template <class H, class... T>
void read(H &h, T &... t) {
bool f = read_single(h);
assert(f);
read(t...);
}
Scanner(FILE *fp) : fp(fp) {}
};
struct Printer {
Printer(FILE *_fp) : fp(_fp) {}
~Printer() { flush(); }
static constexpr size_t SIZE = 1 << 15;
FILE *fp;
char line[SIZE], small[50];
size_t pos = 0;
void flush() {
fwrite(line, 1, pos, fp);
pos = 0;
}
void write(const char val) {
if (pos == SIZE) flush();
line[pos++] = val;
}
template <class T, enable_if_t<is_integral<T>::value, int> = 0>
void write(T val) {
if (pos > (1 << 15) - 50) flush();
if (val == 0) {
write('0');
return;
}
if (val < 0) {
write('-');
val = -val; // todo min
}
size_t len = 0;
while (val) {
small[len++] = char(0x30 | (val % 10));
val /= 10;
}
for (size_t i = 0; i < len; i++) { line[pos + i] = small[len - 1 - i]; }
pos += len;
}
void write(const string s) {
for (char c: s) write(c);
}
void write(const char *s) {
size_t len = strlen(s);
for (size_t i = 0; i < len; i++) write(s[i]);
}
void write(const double x) {
ostringstream oss;
oss << fixed << setprecision(15) << x;
string s = oss.str();
write(s);
}
void write(const long double x) {
ostringstream oss;
oss << fixed << setprecision(15) << x;
string s = oss.str();
write(s);
}
template <typename T,
typename enable_if<has_write<T>::value>::type * = nullptr>
inline void write(T x) {
x.write();
}
template <class T>
void write(const vector<T> val) {
auto n = val.size();
for (size_t i = 0; i < n; i++) {
if (i) write(' ');
write(val[i]);
}
}
template <class T, class U>
void write(const pair<T, U> val) {
write(val.first);
write(' ');
write(val.second);
}
template <size_t N = 0, typename T>
void write_tuple(const T t) {
if constexpr (N < std::tuple_size<T>::value) {
if constexpr (N > 0) { write(' '); }
const auto x = std::get<N>(t);
write(x);
write_tuple<N + 1>(t);
}
}
template <class... T>
bool write(tuple<T...> tpl) {
write_tuple(tpl);
return true;
}
template <class T, size_t S>
void write(const array<T, S> val) {
auto n = val.size();
for (size_t i = 0; i < n; i++) {
if (i) write(' ');
write(val[i]);
}
}
void write(i128 val) {
string s;
bool negative = 0;
if (val < 0) {
negative = 1;
val = -val;
}
while (val) {
s += '0' + int(val % 10);
val /= 10;
}
if (negative) s += "-";
reverse(all(s));
if (len(s) == 0) s = "0";
write(s);
}
};
Scanner scanner = Scanner(stdin);
Printer printer = Printer(stdout);
void flush() { printer.flush(); }
void print() { printer.write('\n'); }
template <class Head, class... Tail>
void print(Head &&head, Tail &&... tail) {
printer.write(head);
if (sizeof...(Tail)) printer.write(' ');
print(forward<Tail>(tail)...);
}
void read() {}
template <class Head, class... Tail>
void read(Head &head, Tail &... tail) {
scanner.read(head);
read(tail...);
}
} // namespace fastio
using fastio::print;
using fastio::flush;
using fastio::read;
#define INT(...) \
int __VA_ARGS__; \
read(__VA_ARGS__)
#define LL(...) \
ll __VA_ARGS__; \
read(__VA_ARGS__)
#define STR(...) \
string __VA_ARGS__; \
read(__VA_ARGS__)
#define CHAR(...) \
char __VA_ARGS__; \
read(__VA_ARGS__)
#define DBL(...) \
double __VA_ARGS__; \
read(__VA_ARGS__)
#define VEC(type, name, size) \
vector<type> name(size); \
read(name)
#define VV(type, name, h, w) \
vector<vector<type>> name(h, vector<type>(w)); \
read(name)
void YES(bool t = 1) { print(t ? "YES" : "NO"); }
void NO(bool t = 1) { YES(!t); }
void Yes(bool t = 1) { print(t ? "Yes" : "No"); }
void No(bool t = 1) { Yes(!t); }
void yes(bool t = 1) { print(t ? "yes" : "no"); }
void no(bool t = 1) { yes(!t); }
#line 2 "library/graph/tree.hpp"
#line 2 "library/graph/base.hpp"
template <typename T>
struct Edge {
int frm, to;
T cost;
int id;
};
template <typename T = int, bool directed = false>
struct Graph {
int N, M;
using cost_type = T;
using edge_type = Edge<T>;
vector<edge_type> edges;
vector<int> indptr;
vector<edge_type> csr_edges;
vc<int> vc_deg, vc_indeg, vc_outdeg;
bool prepared;
class OutgoingEdges {
public:
OutgoingEdges(const Graph* G, int l, int r) : G(G), l(l), r(r) {}
const edge_type* begin() const {
if (l == r) { return 0; }
return &G->csr_edges[l];
}
const edge_type* end() const {
if (l == r) { return 0; }
return &G->csr_edges[r];
}
private:
const Graph* G;
int l, r;
};
bool is_prepared() { return prepared; }
constexpr bool is_directed() { return directed; }
Graph() : N(0), M(0), prepared(0) {}
Graph(int N) : N(N), M(0), prepared(0) {}
void build(int n) {
N = n, M = 0;
prepared = 0;
edges.clear();
indptr.clear();
csr_edges.clear();
vc_deg.clear();
vc_indeg.clear();
vc_outdeg.clear();
}
void add(int frm, int to, T cost = 1, int i = -1) {
assert(!prepared);
assert(0 <= frm && 0 <= to && to < N);
if (i == -1) i = M;
auto e = edge_type({frm, to, cost, i});
edges.eb(e);
++M;
}
// wt, off
void read_tree(bool wt = false, int off = 1) { read_graph(N - 1, wt, off); }
void read_graph(int M, bool wt = false, int off = 1) {
for (int m = 0; m < M; ++m) {
INT(a, b);
a -= off, b -= off;
if (!wt) {
add(a, b);
} else {
T c;
read(c);
add(a, b, c);
}
}
build();
}
void build() {
assert(!prepared);
prepared = true;
indptr.assign(N + 1, 0);
for (auto&& e: edges) {
indptr[e.frm + 1]++;
if (!directed) indptr[e.to + 1]++;
}
for (int v = 0; v < N; ++v) { indptr[v + 1] += indptr[v]; }
auto counter = indptr;
csr_edges.resize(indptr.back() + 1);
for (auto&& e: edges) {
csr_edges[counter[e.frm]++] = e;
if (!directed)
csr_edges[counter[e.to]++] = edge_type({e.to, e.frm, e.cost, e.id});
}
}
OutgoingEdges operator[](int v) const {
assert(prepared);
return {this, indptr[v], indptr[v + 1]};
}
vc<int> deg_array() {
if (vc_deg.empty()) calc_deg();
return vc_deg;
}
pair<vc<int>, vc<int>> deg_array_inout() {
if (vc_indeg.empty()) calc_deg_inout();
return {vc_indeg, vc_outdeg};
}
int deg(int v) {
if (vc_deg.empty()) calc_deg();
return vc_deg[v];
}
int in_deg(int v) {
if (vc_indeg.empty()) calc_deg_inout();
return vc_indeg[v];
}
int out_deg(int v) {
if (vc_outdeg.empty()) calc_deg_inout();
return vc_outdeg[v];
}
void debug() {
print("Graph");
if (!prepared) {
print("frm to cost id");
for (auto&& e: edges) print(e.frm, e.to, e.cost, e.id);
} else {
print("indptr", indptr);
print("frm to cost id");
FOR(v, N) for (auto&& e: (*this)[v]) print(e.frm, e.to, e.cost, e.id);
}
}
vc<int> new_idx;
vc<bool> used_e;
// G における頂点 V[i] が、新しいグラフで i になるようにする
// {G, es}
pair<Graph<T, directed>, vc<int>> rearrange(vc<int> V) {
if (len(new_idx) != N) new_idx.assign(N, -1);
if (len(used_e) != M) used_e.assign(M, 0);
int n = len(V);
FOR(i, n) new_idx[V[i]] = i;
Graph<T, directed> G(n);
vc<int> es;
FOR(i, n) {
for (auto&& e: (*this)[V[i]]) {
if (used_e[e.id]) continue;
int a = e.frm, b = e.to;
if (new_idx[a] != -1 && new_idx[b] != -1) {
used_e[e.id] = 1;
G.add(new_idx[a], new_idx[b], e.cost);
es.eb(e.id);
}
}
}
FOR(i, n) new_idx[V[i]] = -1;
for (auto&& eid: es) used_e[eid] = 0;
G.build();
return {G, es};
}
private:
void calc_deg() {
assert(vc_deg.empty());
vc_deg.resize(N);
for (auto&& e: edges) vc_deg[e.frm]++, vc_deg[e.to]++;
}
void calc_deg_inout() {
assert(vc_indeg.empty());
vc_indeg.resize(N);
vc_outdeg.resize(N);
for (auto&& e: edges) { vc_indeg[e.to]++, vc_outdeg[e.frm]++; }
}
};
#line 4 "library/graph/tree.hpp"
// HLD euler tour をとっていろいろ。
// 木以外、非連結でも dfs 順序や親がとれる。
template <typename GT>
struct Tree {
using Graph_type = GT;
GT &G;
using WT = typename GT::cost_type;
int N;
vector<int> LID, RID, head, V, parent, VtoE;
vc<int> depth;
vc<WT> depth_weighted;
Tree(GT &G, int r = 0, bool hld = 1) : G(G) { build(r, hld); }
void build(int r = 0, bool hld = 1) {
if (r == -1) return; // build を遅延したいとき
N = G.N;
LID.assign(N, -1), RID.assign(N, -1), head.assign(N, r);
V.assign(N, -1), parent.assign(N, -1), VtoE.assign(N, -1);
depth.assign(N, -1), depth_weighted.assign(N, 0);
assert(G.is_prepared());
int t1 = 0;
dfs_sz(r, -1, hld);
dfs_hld(r, t1);
}
void dfs_sz(int v, int p, bool hld) {
auto &sz = RID;
parent[v] = p;
depth[v] = (p == -1 ? 0 : depth[p] + 1);
sz[v] = 1;
int l = G.indptr[v], r = G.indptr[v + 1];
auto &csr = G.csr_edges;
// 使う辺があれば先頭にする
for (int i = r - 2; i >= l; --i) {
if (hld && depth[csr[i + 1].to] == -1) swap(csr[i], csr[i + 1]);
}
int hld_sz = 0;
for (int i = l; i < r; ++i) {
auto e = csr[i];
if (depth[e.to] != -1) continue;
depth_weighted[e.to] = depth_weighted[v] + e.cost;
VtoE[e.to] = e.id;
dfs_sz(e.to, v, hld);
sz[v] += sz[e.to];
if (hld && chmax(hld_sz, sz[e.to]) && l < i) { swap(csr[l], csr[i]); }
}
}
void dfs_hld(int v, int ×) {
LID[v] = times++;
RID[v] += LID[v];
V[LID[v]] = v;
bool heavy = true;
for (auto &&e: G[v]) {
if (depth[e.to] <= depth[v]) continue;
head[e.to] = (heavy ? head[v] : e.to);
heavy = false;
dfs_hld(e.to, times);
}
}
vc<int> heavy_path_at(int v) {
vc<int> P = {v};
while (1) {
int a = P.back();
for (auto &&e: G[a]) {
if (e.to != parent[a] && head[e.to] == v) {
P.eb(e.to);
break;
}
}
if (P.back() == a) break;
}
return P;
}
int e_to_v(int eid) {
auto e = G.edges[eid];
return (parent[e.frm] == e.to ? e.frm : e.to);
}
int v_to_e(int v) { return VtoE[v]; }
int ELID(int v) { return 2 * LID[v] - depth[v]; }
int ERID(int v) { return 2 * RID[v] - depth[v] - 1; }
/* k: 0-indexed */
int LA(int v, int k) {
assert(k <= depth[v]);
while (1) {
int u = head[v];
if (LID[v] - k >= LID[u]) return V[LID[v] - k];
k -= LID[v] - LID[u] + 1;
v = parent[u];
}
}
int la(int u, int v) { return LA(u, v); }
int LCA(int u, int v) {
for (;; v = parent[head[v]]) {
if (LID[u] > LID[v]) swap(u, v);
if (head[u] == head[v]) return u;
}
}
// root を根とした場合の lca
int LCA_root(int u, int v, int root) {
return LCA(u, v) ^ LCA(u, root) ^ LCA(v, root);
}
int lca(int u, int v) { return LCA(u, v); }
int lca_root(int u, int v, int root) { return LCA_root(u, v, root); }
int subtree_size(int v, int root = -1) {
if (root == -1) return RID[v] - LID[v];
if (v == root) return N;
int x = jump(v, root, 1);
if (in_subtree(v, x)) return RID[v] - LID[v];
return N - RID[x] + LID[x];
}
int dist(int a, int b) {
int c = LCA(a, b);
return depth[a] + depth[b] - 2 * depth[c];
}
WT dist_weighted(int a, int b) {
int c = LCA(a, b);
return depth_weighted[a] + depth_weighted[b] - WT(2) * depth_weighted[c];
}
// a is in b
bool in_subtree(int a, int b) { return LID[b] <= LID[a] && LID[a] < RID[b]; }
int jump(int a, int b, ll k) {
if (k == 1) {
if (a == b) return -1;
return (in_subtree(b, a) ? LA(b, depth[b] - depth[a] - 1) : parent[a]);
}
int c = LCA(a, b);
int d_ac = depth[a] - depth[c];
int d_bc = depth[b] - depth[c];
if (k > d_ac + d_bc) return -1;
if (k <= d_ac) return LA(a, k);
return LA(b, d_ac + d_bc - k);
}
vc<int> collect_child(int v) {
vc<int> res;
for (auto &&e: G[v])
if (e.to != parent[v]) res.eb(e.to);
return res;
}
vc<pair<int, int>> get_path_decomposition(int u, int v, bool edge) {
// [始点, 終点] の"閉"区間列。
vc<pair<int, int>> up, down;
while (1) {
if (head[u] == head[v]) break;
if (LID[u] < LID[v]) {
down.eb(LID[head[v]], LID[v]);
v = parent[head[v]];
} else {
up.eb(LID[u], LID[head[u]]);
u = parent[head[u]];
}
}
if (LID[u] < LID[v]) down.eb(LID[u] + edge, LID[v]);
elif (LID[v] + edge <= LID[u]) up.eb(LID[u], LID[v] + edge);
reverse(all(down));
up.insert(up.end(), all(down));
return up;
}
vc<int> restore_path(int u, int v) {
vc<int> P;
for (auto &&[a, b]: get_path_decomposition(u, v, 0)) {
if (a <= b) {
FOR(i, a, b + 1) P.eb(V[i]);
} else {
FOR_R(i, b, a + 1) P.eb(V[i]);
}
}
return P;
}
};
#line 2 "library/ds/sparse_table/disjoint_sparse_table.hpp"
template <class Monoid>
struct Disjoint_Sparse_Table {
using MX = Monoid;
using X = typename MX::value_type;
int n, log;
vvc<X> dat;
Disjoint_Sparse_Table() {}
Disjoint_Sparse_Table(int n) { build(n); }
template <typename F>
Disjoint_Sparse_Table(int n, F f) {
build(n, f);
}
Disjoint_Sparse_Table(const vc<X>& v) { build(v); }
void build(int m) {
build(m, [](int i) -> X { return MX::unit(); });
}
void build(const vc<X>& v) {
build(len(v), [&](int i) -> X { return v[i]; });
}
template <typename F>
void build(int m, F f) {
n = m, log = 1;
while ((1 << log) < n) ++log;
dat.resize(log);
dat[0].reserve(n);
FOR(i, n) dat[0].eb(f(i));
FOR(i, 1, log) {
auto& v = dat[i];
v = dat[0];
int b = 1 << i;
for (int m = b; m <= n; m += 2 * b) {
int L = m - b, R = min(n, m + b);
FOR_R(j, L + 1, m) v[j - 1] = MX::op(v[j - 1], v[j]);
FOR(j, m, R - 1) v[j + 1] = MX::op(v[j], v[j + 1]);
}
}
}
X prod(int L, int R) {
if (L == R) return MX::unit();
--R;
if (L == R) return dat[0][L];
int k = 31 - __builtin_clz(L ^ R);
return MX::op(dat[k][L], dat[k][R]);
}
template <class F>
int max_right(const F check, int L) {
assert(0 <= L && L <= n && check(MX::unit()));
if (L == n) return n;
int ok = L, ng = n + 1;
while (ok + 1 < ng) {
int k = (ok + ng) / 2;
bool bl = check(prod(L, k));
if (bl) ok = k;
if (!bl) ng = k;
}
return ok;
}
template <class F>
int min_left(const F check, int R) {
assert(0 <= R && R <= n && check(MX::unit()));
if (R == 0) return 0;
int ok = R, ng = -1;
while (ng + 1 < ok) {
int k = (ok + ng) / 2;
bool bl = check(prod(k, R));
if (bl) ok = k;
if (!bl) ng = k;
}
return ok;
}
};
#line 2 "library/alg/monoid/monoid_reverse.hpp"
template <class Monoid>
struct Monoid_Reverse {
using value_type = typename Monoid::value_type;
using X = value_type;
static constexpr X op(const X &x, const X &y) { return Monoid::op(y, x); }
static constexpr X unit() { return Monoid::unit(); }
static const bool commute = Monoid::commute;
};
#line 4 "library/graph/ds/static_tree_monoid.hpp"
template <typename TREE, typename Monoid, bool edge>
struct Static_Tree_Monoid {
using MX = Monoid;
using X = typename Monoid::value_type;
TREE &tree;
int N;
Disjoint_Sparse_Table<MX> seg;
Disjoint_Sparse_Table<Monoid_Reverse<MX>> seg_r;
Static_Tree_Monoid(TREE &tree) : tree(tree), N(tree.N) {
build([](int i) -> X { return MX::unit(); });
}
Static_Tree_Monoid(TREE &tree, vc<X> &dat) : tree(tree), N(tree.N) {
build([&](int i) -> X { return dat[i]; });
}
template <typename F>
Static_Tree_Monoid(TREE &tree, F f) : tree(tree), N(tree.N) {
build(f);
}
template <typename F>
void build(F f) {
if (!edge) {
auto f_v = [&](int i) -> X { return f(tree.V[i]); };
seg.build(N, f_v);
if constexpr (!MX::commute) seg_r.build(N, f_v);
} else {
auto f_e = [&](int i) -> X {
return (i == 0 ? MX::unit() : f(tree.v_to_e(tree.V[i])));
};
seg.build(N, f_e);
if constexpr (!MX::commute) seg_r.build(N, f_e);
}
}
X prod_path(int u, int v) {
auto pd = tree.get_path_decomposition(u, v, edge);
X val = MX::unit();
for (auto &&[a, b]: pd) { val = MX::op(val, get_prod(a, b)); }
return val;
}
// uv path 上で prod_path(u, x) が check を満たす最後の x
// なければ -1
template <class F>
int max_path(F check, int u, int v) {
if (edge) return max_path_edge(check, u, v);
if (!check(prod_path(u, u))) return -1;
auto pd = tree.get_path_decomposition(u, v, edge);
X val = MX::unit();
for (auto &&[a, b]: pd) {
X x = get_prod(a, b);
if (check(MX::op(val, x))) {
val = MX::op(val, x);
u = (tree.V[b]);
continue;
}
auto check_tmp = [&](X x) -> bool { return check(MX::op(val, x)); };
if (a <= b) {
// 下り
int i = seg.max_right(check_tmp, a);
return (i == a ? u : tree.V[i - 1]);
} else {
// 上り
int i = 0;
if constexpr (MX::commute) i = seg.min_left(check_tmp, a + 1);
if constexpr (!MX::commute) i = seg_r.min_left(check_tmp, a + 1);
if (i == a + 1) return u;
return (edge ? tree.parent[tree.V[i]] : tree.V[i]);
}
}
return v;
}
X prod_subtree(int u) {
int l = tree.LID[u], r = tree.RID[u];
return seg.prod(l + edge, r);
}
// [a,b] heavy path 形式
inline X get_prod(int a, int b) {
if constexpr (MX::commute)
return (a <= b ? seg.prod(a, b + 1) : seg.prod(b, a + 1));
return (a <= b ? seg.prod(a, b + 1) : seg_r.prod(b, a + 1));
}
private:
template <class F>
int max_path_edge(F check, int u, int v) {
assert(edge);
if (!check(MX::unit())) return -1;
int lca = tree.lca(u, v);
auto pd = tree.get_path_decomposition(u, lca, edge);
X val = MX::unit();
// climb
for (auto &&[a, b]: pd) {
assert(a >= b);
X x = prod_path(a, b);
if (check(MX::op(val, x))) {
val = MX::op(val, x);
u = (tree.parent[tree.V[b]]);
continue;
}
auto check_tmp = [&](X x) -> bool { return check(MX::op(val, x)); };
int i = 0;
if constexpr (MX::commute) i = seg.min_left(check_tmp, a + 1);
if constexpr (!MX::commute) i = seg_r.min_left(check_tmp, a + 1);
if (i == a + 1) return u;
return tree.parent[tree.V[i]];
}
// down
pd = tree.get_path_decomposition(lca, v, edge);
for (auto &&[a, b]: pd) {
assert(a <= b);
X x = seg.prod(a, b + 1);
if (check(MX::op(val, x))) {
val = MX::op(val, x);
u = (tree.V[b]);
continue;
}
auto check_tmp = [&](X x) -> bool { return check(MX::op(val, x)); };
auto i = seg.max_right(check_tmp, a);
return (i == a ? u : tree.V[i - 1]);
}
return v;
}
};
#line 2 "library/alg/monoid/add.hpp"
template <typename X>
struct Monoid_Add {
using value_type = X;
static constexpr X op(const X &x, const X &y) noexcept { return x + y; }
static constexpr X inverse(const X &x) noexcept { return -x; }
static constexpr X power(const X &x, ll n) noexcept { return X(n) * x; }
static constexpr X unit() { return X(0); }
static constexpr bool commute = true;
};
#line 2 "library/ds/fenwicktree/fenwicktree_2d.hpp"
template <typename Monoid, typename XY, bool SMALL_X = false>
struct FenwickTree_2D {
using G = Monoid;
using E = typename G::value_type;
static_assert(G::commute);
int N;
vc<XY> keyX;
XY min_X;
vc<int> indptr;
vc<XY> keyY;
vc<E> dat;
FenwickTree_2D(vc<XY>& X, vc<XY>& Y, vc<E> wt) { build(X, Y, wt); }
FenwickTree_2D(vc<XY>& X, vc<XY>& Y) {
vc<E> wt(len(X), G::unit());
build(X, Y, wt);
}
inline int xtoi(XY x) {
return (SMALL_X ? clamp<int>(x - min_X, 0, N) : LB(keyX, x));
}
inline int nxt(int i) { return i + ((i + 1) & -(i + 1)); }
inline int prev(int i) { return i - ((i + 1) & -(i + 1)); }
void build(vc<XY>& X, vc<XY>& Y, vc<E> wt) {
assert(len(X) == len(Y) && len(X) == len(wt));
if (!SMALL_X) {
keyX = X;
UNIQUE(keyX);
N = len(keyX);
} else {
min_X = (len(X) == 0 ? 0 : MIN(X));
N = (len(X) == 0 ? 0 : MAX(X)) - min_X + 1;
keyX.resize(N);
FOR(i, N) keyX[i] = min_X + i;
}
vvc<XY> keyY_raw(N);
vvc<E> dat_raw(N);
for (auto&& i: argsort(Y)) {
int ix = xtoi(X[i]);
XY y = Y[i];
while (ix < N) {
auto& KY = keyY_raw[ix];
if (len(KY) == 0 || KY.back() < y) {
KY.eb(y);
dat_raw[ix].eb(wt[i]);
} else {
dat_raw[ix].back() = G::op(dat_raw[ix].back(), wt[i]);
}
ix = nxt(ix);
}
}
indptr.assign(N + 1, 0);
FOR(i, N) indptr[i + 1] = indptr[i] + len(keyY_raw[i]);
keyY.resize(indptr.back());
dat.resize(indptr.back());
FOR(i, N) FOR(j, indptr[i + 1] - indptr[i]) {
keyY[indptr[i] + j] = keyY_raw[i][j];
dat[indptr[i] + j] = dat_raw[i][j];
}
FOR(i, N) {
int n = indptr[i + 1] - indptr[i];
FOR(j, n - 1) {
int k = nxt(j);
if (k < n)
dat[indptr[i] + k] = G::op(dat[indptr[i] + k], dat[indptr[i] + j]);
}
}
}
void add(XY x, XY y, E val) { multiply(x, y, val); }
void multiply(XY x, XY y, E val) {
int i = xtoi(x);
assert(keyX[i] == x);
while (i < N) { multiply_i(i, y, val), i = nxt(i); }
}
E sum(XY lx, XY rx, XY ly, XY ry) { return prod(lx, rx, ly, ry); }
E prod(XY lx, XY rx, XY ly, XY ry) {
E pos = G::unit(), neg = G::unit();
int L = xtoi(lx) - 1, R = xtoi(rx) - 1;
while (L < R) { pos = G::op(pos, prod_i(R, ly, ry)), R = prev(R); }
while (R < L) { neg = G::op(neg, prod_i(L, ly, ry)), L = prev(L); }
return G::op(pos, G::inverse(neg));
}
E prefix_sum(XY rx, XY ry) { return prefix_prod(rx, ry); }
E prefix_prod(XY rx, XY ry) {
E pos = G::unit();
int R = xtoi(rx) - 1;
while (R >= 0) { pos = G::op(pos, prefix_prod_i(R, ry)), R = prev(R); }
return pos;
}
private:
void multiply_i(int i, XY y, E val) {
int LID = indptr[i], n = indptr[i + 1] - indptr[i];
auto it = keyY.begin() + LID;
int j = lower_bound(it, it + n, y) - it;
while (j < n) { dat[LID + j] = G::op(dat[LID + j], val), j = nxt(j); }
}
E prod_i(int i, XY ly, XY ry) {
E pos = G::unit(), neg = G::unit();
int LID = indptr[i], n = indptr[i + 1] - indptr[i];
auto it = keyY.begin() + LID;
int L = lower_bound(it, it + n, ly) - it - 1;
int R = lower_bound(it, it + n, ry) - it - 1;
while (L < R) { pos = G::op(pos, dat[LID + R]), R = prev(R); }
while (R < L) { neg = G::op(neg, dat[LID + L]), L = prev(L); }
return G::op(pos, G::inverse(neg));
}
E prefix_prod_i(int i, XY ry) {
E pos = G::unit();
int LID = indptr[i], n = indptr[i + 1] - indptr[i];
auto it = keyY.begin() + LID;
int R = lower_bound(it, it + n, ry) - it - 1;
while (R >= 0) { pos = G::op(pos, dat[LID + R]), R = prev(R); }
return pos;
}
};
#line 7 "main.cpp"
void solve() {
LL(N, Q);
Graph<ll, 0> G(N);
G.read_tree(1);
Tree<decltype(G)> tree(G);
vi dat(N - 1);
FOR(i, N - 1) dat[i] = G.edges[i].cost;
Static_Tree_Monoid<decltype(tree), Monoid_Add<ll>, 1> TM(tree, dat);
auto& dist = tree.depth_weighted;
/*
・頂点 v に、根に着くのが時刻 t であるようなものを追加
・（消す）はじめて消えて到達するのが w であるとき、w に -1 個追加
euler tour をとって
*/
using T = tuple<int, int, ll>;
vc<T> query;
auto& LID = tree.LID;
vi X, Y;
iota(all(X), 0);
FOR(Q) {
LL(tp, v, t, l);
--v;
if (tp == 0) {
// 追加クエリ
// 消えないで到達できる最大の頂点
auto check = [&](auto e) -> bool { return e <= l; };
auto to = TM.max_path(check, v, 0);
int w = tree.parent[to];
query.eb(1, LID[v], t + dist[v]);
X.eb(LID[v]);
Y.eb(t + dist[v]);
if (w != -1) {
X.eb(LID[w]);
Y.eb(t + dist[v]);
query.eb(-1, LID[w], t + dist[v]);
}
}
if (tp == 1) { query.eb(0, v, t); }
}
FenwickTree_2D<Monoid_Add<int>, ll, true> bit(X, Y);
for (auto&& [tp, x, t]: query) {
if (tp == 0) {
int v = x;
int l = tree.LID[v], r = tree.RID[v];
t += dist[v];
ll ANS = bit.sum(l, r, 0, t + 1);
print(ANS);
}
if (tp == 1) { bit.add(x, t, 1); }
if (tp == -1) { bit.add(x, t, -1); }
}
}
signed main() {
solve();
return 0;
}