結果
| 問題 | No.898 tri-βutree |
| ユーザー |
 Konton7
|
| 提出日時 | 2022-04-06 08:15:01 |
| 言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 32,005 bytes |
| コンパイル時間 | 2,335 ms |
| コンパイル使用メモリ | 148,256 KB |
| 実行使用メモリ | 44,264 KB |
| 最終ジャッジ日時 | 2024-05-05 17:35:12 |
| 合計ジャッジ時間 | 8,634 ms |
|
ジャッジサーバーID （参考情報） |
judge2 / judge4 |
（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 | WA | - |
| testcase_01 | WA | - |
| testcase_02 | WA | - |
| testcase_03 | WA | - |
| testcase_04 | WA | - |
| testcase_05 | WA | - |
| testcase_06 | WA | - |
| testcase_07 | WA | - |
| testcase_08 | WA | - |
| testcase_09 | WA | - |
| testcase_10 | WA | - |
| testcase_11 | WA | - |
| testcase_12 | WA | - |
| testcase_13 | WA | - |
| testcase_14 | WA | - |
| testcase_15 | WA | - |
| testcase_16 | WA | - |
| testcase_17 | WA | - |
| testcase_18 | WA | - |
| testcase_19 | WA | - |
| testcase_20 | WA | - |
| testcase_21 | WA | - |
コンパイルメッセージ
In constructor 'node::node(node&&)',
inlined from 'void std::__new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = node; _Args = {node}; _Tp = node]' at /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/new_allocator.h:175:4,
inlined from 'static void std::allocator_traits<std::allocator<_Tp1> >::construct(allocator_type&, _Up*, _Args&& ...) [with _Up = node; _Args = {node}; _Tp = node]' at /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/alloc_traits.h:516:17,
inlined from 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {node}; _Tp = node; _Alloc = std::allocator<node>]' at /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/vector.tcc:117:30,
inlined from 'graph::graph(int)' at main.cpp:343:38,
inlined from 'int main()' at main.cpp:1212:17:
main.cpp:310:8: warning: '<unnamed>.node::use_leaf' may be used uninitialized [-Wmaybe-uninitialized]
310 | struct node {
| ^~~~
main.cpp: In function 'int main()':
main.cpp:343:44: note: '<anonymous>' declared here
343 | rep(i, _n) nodes.emplace_back(node());
| ^
ソースコード
// #include <bits/stdc++.h>
#include <algorithm>
#include <chrono>
#include <cmath>
#include <deque>
#include <iomanip>
#include <iostream>
#include <limits>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <vector>
using namespace std;
using ll = long long;
using VI = vector<int>;
using VL = vector<ll>;
using VD = vector<double>;
using VS = vector<string>;
using VB = vector<bool>;
using VVB = vector<vector<bool>>;
using VVI = vector<VI>;
using VVL = vector<VL>;
using VVD = vector<VD>;
using VVVI = vector<VVI>;
using VVVL = vector<VVL>;
using VVVD = vector<VVD>;
using PII = std::pair<int, int>;
using VPII = std::vector<std::pair<int, int>>;
using PLL = std::pair<ll, ll>;
using VPLL = std::vector<std::pair<ll, ll>>;
using TI3 = std::tuple<int, int, int>;
using TI4 = std::tuple<int, int, int, int>;
using TL3 = std::tuple<ll, ll, ll>;
using TL4 = std::tuple<ll, ll, ll, ll>;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define repr(i, n) for (int i = (int)(n)-1; i >= 0; i--)
#define rep2(i, s, n) for (int i = (s); i < (int)(n); i++)
#define repr2(i, g, n) for (int i = (int)(n)-1; i >= (g); i--)
#define rep3(i, s, n, d) for (int i = (s); i < (int)(n); i += (d))
#define repr3(i, g, n, d) for (int i = (int)(n)-1; i >= (g); i -= (d))
#define allpt(v) (v).begin(), (v).end()
#define allpt_c(v) (v).cbegin(), (v).cend()
#define allpt_r(v) (v).rbegin(), (v).rend()
#define allpt_cr(v) (v).crbegin(), (v).crend()
const int mod1 = 1e9 + 7, mod2 = 998244353, mod3 = 1e9 + 9;
const int mod = mod1;
const ll inf = 1e18;
const int infint = 1e9;
const string wsp = " ";
const string tb = "\t";
const string rt = "\n";
const string alphabets = "abcdefghijklmnopqrstuvwxyz";
// std::random_device seed_gen;
// std::mt19937 engine(seed_gen());
// 乱数生成用メルセンヌ・ツイスタエンジン
template <typename T>
void show1dvec(const vector<T> &v) {
if (v.size() == 0) return;
int n = v.size() - 1;
rep(i, n) cout << v[i] << wsp;
cout << v[n] << rt;
return;
}
int get1dcoodinate(int w, int i, int j) { return i * w + j; }
template <typename T, typename S>
istream &operator>>(istream &is, pair<T, S> &v) {
is >> v.first >> v.second;
return is;
}
template <typename T>
ostream &operator<<(ostream &os, const vector<T> &v) {
if (v.size() == 0) return os;
int n = (int)v.size() - 1;
rep(i, n) os << v[i] << wsp;
os << v[n] << rt;
return os;
}
template <typename T>
istream &operator>>(istream &is, vector<T> &v) {
if (v.size() == 0) return is;
int n = v.size();
rep(i, n) is >> v[i];
return is;
}
template <typename T>
ostream &operator<<(ostream &os, const vector<vector<T>> &v) {
if (v.size() == 0) return os;
int n = (int)v.size();
rep(i, n) os << v[i];
return os;
}
template <typename T>
istream &operator>>(istream &is, vector<vector<T>> &v) {
if (v.size() == 0) return is;
int n = v.size();
rep(i, n) is >> v[i];
return is;
}
template <typename T, typename S>
istream &operator>>(istream &is, vector<pair<T, S>> &v) {
if (v.size() == 0) return is;
int n = v.size();
rep(i, n) is >> v[i].first >> v[i].second;
return is;
}
template <typename T, typename S>
ostream &operator<<(ostream &os, const vector<pair<T, S>> &v) {
if (v.size() == 0) return os;
int n = v.size();
rep(i, n) os << v[i].first << wsp << v[i].second << rt;
return os;
}
void show2dvec(const vector<string> &v) {
int n = (int)v.size();
rep(i, n) cout << v[i] << rt;
}
template <typename T>
void show2dvec(const vector<vector<T>> &v) {
int n = v.size();
rep(i, n) show1dvec(v[i]);
}
template <typename T>
void range_sort(vector<T> &arr, int l, int r) {
sort(arr.begin() + l, arr.begin() + r);
}
template <typename T, typename S>
void show1dpair(const vector<pair<T, S>> &v) {
int n = v.size();
rep(i, n) cout << v[i].first << v[i].second << rt;
return;
}
template <typename T, typename S>
void pairzip(const vector<pair<T, S>> &v, vector<T> &t, vector<T> &s) {
int n = v.size();
rep(i, n) {
t.push_back(v[i].first);
s.push_back(v[i].second);
}
return;
}
template <typename T>
void maxvec(vector<T> &v) {
T s = v[0];
int n = v.size();
rep(i, n - 1) {
if (s > v[i + 1]) {
v[i + 1] = s;
}
s = v[i + 1];
}
}
template <typename T, typename S>
bool myfind(T t, S s) {
return find(t.cbegin(), t.cend(), s) != t.cend();
}
bool check(int y, int x, int h, int w) {
return 0 <= y && y < h && 0 <= x && x < w;
}
bool check(int y, int x, int h1, int h2, int w1, int w2) {
return h1 <= y && y < h2 && w1 <= x && x < w2;
}
bool iskadomatsu(int a, int b, int c) {
return (a != b && b != c && c != a) &&
((a > b && b < c) || (a < b && b > c));
}
template <typename T>
bool iskadomatsu(vector<T> v) {
T a = v[0], b = v[1], c = v[2];
return (a != b && b != c && c != a) &&
((a > b && b < c) || (a < b && b > c));
}
double euc_dist(PII a, PII b) {
return sqrt(pow(a.first - b.first, 2) + pow(a.second - b.second, 2));
}
// VS split(string s, char c) {
// VS ret;
// string part;
// s += c;
// rep(i, s.length()) {
// if (s[i] == c) {
// if (part != "") ret.emplace_back(part);
// part = "";
// } else if (s[i] != c) {
// part += s[i];
// }
// }
// return ret;
// }
VS split(string s, char c, char d = ' ') {
VS ret;
// reverse(allpt(s));
string part;
s += c;
rep(i, s.length()) {
if (s[i] == c) {
if (part != "") {
// string t;
// t += c;
// ret.emplace_back(t);
ret.emplace_back(part);
}
part = "";
} else {
part += s[i];
}
}
return ret;
}
template <typename T, typename S, typename R>
ll pow_mod(T p, S q, R _mod = 1ll) {
ll ret = 1, r = p;
while (q) {
if (q % 2) ret *= r, ret %= _mod;
r = (r * r) % _mod, q /= 2;
}
return ret % _mod;
}
template <typename T, typename S>
ll pow_no_mod(T p, S q) {
ll ret = 1, r = p;
while (q) {
if (q % 2) ret *= r;
r = (r * r), q /= 2;
}
return ret;
}
void make_frac_tables(VL &frac_list, VL &frac_inv_list) {
rep(i, frac_list.size() - 1) {
frac_list[i + 1] *= frac_list[i] * (i + 1);
frac_list[i + 1] %= mod;
frac_inv_list[i + 1] *= frac_inv_list[i] * pow_mod(i + 1, mod - 2, mod);
frac_inv_list[i + 1] %= mod;
}
}
pair<VL, VL> make_frac_tables(int n) {
VL frac_list(n + 1, 1), frac_inv_list(n + 1, 1);
rep(i, n) {
frac_list[i + 1] *= frac_list[i] * (i + 1);
frac_list[i + 1] %= mod;
frac_inv_list[i + 1] *= frac_inv_list[i] * pow_mod(i + 1, mod - 2, mod);
frac_inv_list[i + 1] %= mod;
}
return make_pair(frac_list, frac_inv_list);
}
ll perm(int a, int b, const VL &frac_list, const VL &frac_inv_list) {
if (a < b) return 0;
if (b < 0) return 0;
ll ret = frac_list[a];
ret *= frac_inv_list[a - b];
ret %= mod;
return ret;
}
ll comb(int a, int b, const VL &frac_list, const VL &frac_inv_list) {
if (a < b) return 0;
if (b < 0) return 0;
ll ret = frac_list[a];
ret *= frac_inv_list[b];
ret %= mod;
ret *= frac_inv_list[a - b];
ret %= mod;
return ret;
}
struct vec2d {
ll x;
ll y;
vec2d(ll _x, ll _y) {
x = _x;
y = _y;
}
ll dot(vec2d p) { return x * p.x + y * p.y; }
vec2d diff(vec2d p) { return vec2d(x - p.x, y - p.y); }
};
struct node {
int parent = -1;
ll weight = 0;
int depth = 0;
int degree = 0;
int subtree = 1;
int check = 0;
int scc = -1;
int use_leaf;
priority_queue<int> coins;
VPLL children;
VI parent_list;
VPLL connect;
node() {
parent = -1;
weight = 0;
depth = 0;
degree = 0;
subtree = 1;
check = 0;
children;
parent_list;
connect;
}
};
struct graph {
int _n;
int root = 0;
vector<node> nodes;
graph(int n) {
_n = n;
rep(i, _n) nodes.emplace_back(node());
}
void getconnect_nocost() {
ll a, b;
cin >> a >> b;
nodes[a].connect.emplace_back(b, 1);
nodes[b].connect.emplace_back(a, 1);
}
void getconnect_cost() {
ll a, b, c;
cin >> a >> b >> c;
nodes[a].connect.emplace_back(b, c);
nodes[b].connect.emplace_back(a, c);
}
void getconnect_increment_nocost() {
ll a, b;
cin >> a >> b;
a--, b--;
nodes[a].connect.emplace_back(b, 1);
nodes[b].connect.emplace_back(a, 1);
}
void getconnect_increment_cost() {
ll a, b, c;
cin >> a >> b >> c;
a--, b--;
nodes[a].connect.emplace_back(b, c);
nodes[b].connect.emplace_back(a, c);
}
void showparent() {
rep(i, _n - 1) cout << nodes[i].parent << wsp;
cout << nodes[_n - 1].parent << rt;
}
void showweight() {
rep(i, _n - 1) cout << nodes[i].weight << wsp;
cout << nodes[_n - 1].weight << rt;
}
void showsubtree() {
rep(i, _n - 1) cout << nodes[i].subtree << wsp;
cout << nodes[_n - 1].subtree << rt;
}
void showdepth() {
rep(i, _n - 1) cout << nodes[i].depth << wsp;
cout << nodes[_n - 1].depth << rt;
}
};
struct point {
int x;
int y;
point() {
x = 0;
y = 0;
}
point(int _x, int _y) {
x = _x;
y = _y;
}
void pointinput() {
int _x, _y;
cin >> _x >> _y;
x = _x;
y = _y;
}
void pointinv() { swap(x, y); }
};
istream &operator>>(istream &is, point &p) {
is >> p.x >> p.y;
return is;
}
ostream &operator<<(ostream &os, point &p) {
os << p.x << wsp << p.y << rt;
return os;
}
double pointseuc(point a, point b) {
ll ax = a.x, bx = b.x, ay = a.y, by = b.y;
return sqrt(pow(ax - bx, 2) + pow(ay - by, 2));
}
ll pointseucsquare(point a, point b) {
ll ax = a.x, bx = b.x, ay = a.y, by = b.y;
return (ax - bx) * (ax - bx) + (ay - by) * (ay - by);
}
int pointsmanhattan(point a, point b) {
return abs(a.x - b.x) + abs(a.y - b.y);
}
double dist_segment_point(TL3 segment, point p) {
double a = get<0>(segment);
double b = get<1>(segment);
double c = get<2>(segment);
return abs(a * p.x + b * p.y - c) / sqrt(a * a + b * b);
}
TL3 segment_parameter(point p, point q) {
ll a, b, c;
a = q.y - p.y;
b = p.x - q.x;
c = a * p.x + b * p.y;
TL3 ret = (TL3){a, b, c};
// cout << a << b << c << rt;
return ret;
}
int cross_check(TL3 segment, point p) {
ll a = get<0>(segment);
ll b = get<1>(segment);
ll c = get<2>(segment);
auto f = a * p.x + b * p.y - c;
int ret;
if (f > 0) ret = 1;
if (f == 0) ret = 0;
if (f < 0) ret = -1;
return ret;
}
VI shave(int n) {
VI v;
if (n <= 1) return v;
vector<bool> w(n + 1, true);
int x;
w[0] = w[1] = false;
rep2(i, 2, n + 1) {
if (w[i]) {
x = i * 2;
while (x <= n) {
w[x] = false;
x += i;
}
}
}
rep(i, n + 1) if (w[i]) v.emplace_back(i);
return v;
}
bool iscross(point p1, point p2, point p3, point p4) {
auto segment_1 = segment_parameter(p1, p2);
auto segment_2 = segment_parameter(p3, p4);
const double eps = 1e-6;
bool ans{false};
if (cross_check(segment_1, p3) * cross_check(segment_1, p4) == 0 &&
cross_check(segment_2, p1) * cross_check(segment_2, p2) == 0) {
auto xmin_1 = min(p1.x, p2.x) - eps;
auto xmin_2 = min(p3.x, p4.x) - eps;
auto xmax_1 = max(p1.x, p2.x) + eps;
auto xmax_2 = max(p3.x, p4.x) + eps;
auto ymin_1 = min(p1.y, p2.y) - eps;
auto ymin_2 = min(p3.y, p4.y) - eps;
auto ymax_1 = max(p1.y, p2.y) + eps;
auto ymax_2 = max(p3.y, p4.y) + eps;
if (xmin_1 <= p3.x && p3.x <= xmax_1 && ymin_1 <= p3.y &&
p3.y <= ymax_1)
ans = true;
if (xmin_1 <= p4.x && p4.x <= xmax_1 && ymin_1 <= p4.y &&
p4.y <= ymax_1)
ans = true;
if (xmin_2 <= p1.x && p1.x <= xmax_2 && ymin_2 <= p1.y &&
p1.y <= ymax_2)
ans = true;
if (xmin_2 <= p2.x && p2.x <= xmax_2 && ymin_2 <= p2.y &&
p2.y <= ymax_2)
ans = true;
} else if (cross_check(segment_1, p3) * cross_check(segment_1, p4) <= 0 &&
cross_check(segment_2, p1) * cross_check(segment_2, p2) <= 0) {
ans = true;
}
return ans;
}
// int on_the_segment(point p, point q1, point q2) {
// auto [a, b, c] = segment_parameter(q1, q2);
// if (p.x < min(q1.x, q2.x) || max(q1.x, q2.x) < p.x) return 0;
// if (p.y < min(q1.y, q2.y) || max(q1.y, q2.y) < p.y) return 0;
// auto f = a * p.x + b * p.y - c;
// return f == 0;
// }
void shave(vector<int> &v, int n) {
if (n <= 1) return;
vector<bool> w(n + 1, true);
int x;
w[0] = w[1] = false;
rep2(i, 2, n + 1) {
if (w[i]) {
x = i * 2;
while (x <= n) {
w[x] = false;
x += i;
}
}
}
rep(i, n + 1) if (w[i]) v.emplace_back(i);
}
template <typename T>
void coordinate_compress(vector<T> &x, map<T, int> &zip, int &xs) {
sort(x.begin(), x.end());
x.erase(unique(x.begin(), x.end()), x.end());
xs = x.size();
for (int i = 0; i < xs; i++) {
zip[x[i]] = i;
}
}
// ll getpalindrome(int l, int r, const string &s, VL &memo) {
// if (r - l <= 1) return 1;
// if (memo[l] != -1) return memo[l];
// ll ret{1};
// int n = (r - l) / 2;
// string sl, sr;
// rep(i, n) {
// sl += s[l + i];
// sr += s[r - 1 - i];
// string rsr(i + 1, '0');
// reverse_copy(allpt_c(sr), rsr.begin());
// // cout << sl << wsp << sr << wsp << rsr << rt;
// if (sl == rsr) {
// ret += getpalindrome(l + i + 1, r - i - 1, s, memo);
// ret %= mod;
// }
// }
// memo[l] = ret;
// return ret;
// }
void getpalindrome(int l, int r, int n, const string &s, VVB &memo) {
if (r - l <= 1 || s[l] == s[r - 1]) {
memo[l][r] = true;
if (l > 0 && r < n) {
getpalindrome(l - 1, r + 1, n, s, memo);
}
}
return;
}
// void djcstra(graph graphs, int s, int t)
// {
// const int n = graphs._n;
// VL shortest(n, inf);
// shortest[s] = 0;
// priority_queue<pair<ll, int>> pq;
// pq.push(make_pair(0, s));
// while (!pq.empty())
// {
// auto [t, v] = pq.top();
// pq.pop();
// t = -t;
// if (shortest[v] != t)
// continue;
// for (auto [u, c] : graphs.nodes[v].connect)
// {
// if (t + c < shortest[u])
// {
// shortest[u] = t + c;
// pq.push(make_pair(-(t + c), u));
// }
// }
// }
// }
class Unionfind {
vector<int> p;
public:
Unionfind(int n) {
for (int i = 0; i < n; i++) {
p.push_back(i);
}
}
int find(int x) {
while (p[x] != x) {
p[x] = p[p[x]];
x = p[x];
}
return x;
}
int getval(int x) { return p[x]; }
void unite(int x, int y) {
x = find(x);
y = find(y);
if (x != y) {
p[x] = y;
}
}
bool isunion(int x, int y) { return find(x) == find(y); }
void showtree() { cout << p; }
};
template <typename T>
class RangeMinorMaxorSumQuery // 0-index
{
T const intmax = infint;
T const intmin = 0;
vector<T> sgt;
int n;
int k;
public:
RangeMinorMaxorSumQuery(int n1, T f) {
int na = 1;
int ka = 0;
while (na < n1) {
na *= 2;
ka++;
}
for (int i = 0; i < 2 * na; i++) sgt.push_back(f);
n = na;
k = ka;
}
void update_min(int i, T x) {
i += n;
sgt[i] = x;
while (i > 1) {
i /= 2;
sgt[i] = min(sgt[2 * i], sgt[2 * i + 1]);
}
}
void update_max(int i, T x) {
i += n;
sgt[i] = x;
while (i > 1) {
i /= 2;
sgt[i] = max(sgt[2 * i], sgt[2 * i + 1]);
}
}
void update_sum(int i, T x) {
i += n;
sgt[i] = x;
while (i > 1) {
i /= 2;
sgt[i] = sgt[2 * i] + sgt[2 * i + 1];
}
}
void add_sum(int i, T x) {
i += n;
sgt[i] += x;
while (i > 1) {
i /= 2;
sgt[i] = sgt[2 * i] + sgt[2 * i + 1];
}
}
void add_min(int i, T x) {
i += n;
sgt[i] += x;
while (i > 1) {
i /= 2;
sgt[i] = min(sgt[2 * i], sgt[2 * i + 1]);
}
}
void add_max(int i, T x) {
i += n;
sgt[i] += x;
while (i > 1) {
i /= 2;
sgt[i] = max(sgt[2 * i], sgt[2 * i + 1]);
}
}
T get_min(int a, int b, int k = 1, int l = 0,
int r = -1) //閉区間 l <= x < r とする
{
if (r == -1) r = n;
if (r <= a || b <= l) return inf;
if (a == l && b == r)
return sgt[k];
else
return min(
get_min(a, min(b, (l + r) / 2), 2 * k, l, (l + r) / 2),
get_min(max(a, (l + r) / 2), b, 2 * k + 1, (l + r) / 2, r));
}
T get_max(int a, int b, int k = 1, int l = 0,
int r = -1) //閉区間 l <= x < r とする
{
if (r == -1) r = n;
if (r <= a || b <= l) return 0;
if (a == l && b == r)
return sgt[k];
else
return max(
get_max(a, min(b, (l + r) / 2), 2 * k, l, (l + r) / 2),
get_max(max(a, (l + r) / 2), b, 2 * k + 1, (l + r) / 2, r));
}
T get_sum(int a, int b, int k = 1, int l = 0,
int r = -1) //閉区間 l <= x < r とする
{
if (r == -1) r = n;
if (r <= a || b <= l) return intmin;
if (a == l && b == r)
return sgt[k];
else
return get_sum(a, min(b, (l + r) / 2), 2 * k, l, (l + r) / 2) +
get_sum(max(a, (l + r) / 2), b, 2 * k + 1, (l + r) / 2, r);
}
T operator[](int i) { return sgt[i + n]; }
void printsegtree() {
for (int i = 0; i < 2 * n; i++) {
cout << sgt[i] << " ";
}
cout << endl;
}
};
template <typename T>
class Bit_Index_Tree // 1-index
{
int n = 0;
vector<T> v;
public:
Bit_Index_Tree(int _n, T x = 0) {
n = _n;
v.resize(n + 1);
fill(allpt(v), x);
}
Bit_Index_Tree(vector<T> _v) {
n = _v.size();
v = _v;
}
void add(int i, T x) {
while (i <= n) {
v[i] += x;
i += i & -i;
}
}
T get_sum(int i) {
T ret = 0;
while (i > 0) {
ret += v[i];
i -= i & -i;
}
return ret;
}
T get_range_sum(int l, int r) { // 半開区間 l <= x < r
return get_sum(r) - get_sum(l);
}
};
// #define DEBUG
VI smallest_prime_factors(int n) {
VI ret(n + 1);
iota(allpt(ret), 0);
for (int i = 2; i * i <= n; i++) {
if (ret[i] == i) {
for (int j = i * i; j <= n; j += i) {
if (ret[j] == j) ret[j] = i;
}
}
}
return ret;
}
class RangeSumQueryWithDelay // 0-index
{
ll const intmax = 2147483647;
ll const intmin = 0;
vector<ll> sgt;
vector<ll> sgt_deray;
int n;
int k;
public:
RangeSumQueryWithDelay(int n1, int f = -1) {
if (f == -1)
f = intmax;
else if (f == 0)
f = intmin;
int na = 1;
int ka = 0;
while (na < n1) {
na *= 2;
ka++;
}
for (int i = 0; i < 2 * na; i++) {
sgt.push_back(f);
sgt_deray.emplace_back(0);
}
n = na;
k = ka;
}
void eval_add(int k, int l, int r) {
if (sgt_deray[k] != 0) {
sgt[k] += sgt_deray[k];
if (r - l > 1) {
sgt_deray[2 * k] += sgt_deray[k] / 2;
sgt_deray[2 * k + 1] += sgt_deray[k] / 2;
}
sgt_deray[k] = 0;
}
}
void eval_update(int k, int l, int r) {
if (sgt_deray[k] != intmax) {
sgt[k] = sgt_deray[k];
if (r - l > 1) {
sgt_deray[2 * k] = sgt_deray[k];
sgt_deray[2 * k + 1] = sgt_deray[k];
}
sgt_deray[k] = intmax;
}
}
void range_add(int a, int b, ll x, int k = 1, int l = 0, int r = -1) {
if (r == -1) r = n;
eval_add(k, l, r); //求める範囲とは違っても評価が行われることがある！
if (r <= a || b <= l) return;
if (a <= l && r <= b) {
sgt_deray[k] += (r - l) * x;
eval_add(k, l, r);
} else {
range_add(a, b, x, 2 * k, l, (l + r) / 2);
range_add(a, b, x, 2 * k + 1, (l + r) / 2, r);
sgt[k] = sgt[2 * k] + sgt[2 * k + 1];
}
}
void range_add_max(int a, int b, ll x, int k = 1, int l = 0, int r = -1) {
if (r == -1) r = n;
eval_update(k, l,
r); //求める範囲とは違っても評価が行われることがある！
if (r <= a || b <= l) return;
if (a <= l && r <= b) {
sgt_deray[k] += x;
eval_update(k, l, r);
} else {
range_add_max(a, b, x, 2 * k, l, (l + r) / 2);
range_add_max(a, b, x, 2 * k + 1, (l + r) / 2, r);
sgt[k] = max(sgt[2 * k], sgt[2 * k + 1]);
}
}
void range_update(int a, int b, ll x, int k = 1, int l = 0, int r = -1) {
if (r == -1) r = n;
eval_update(k, l,
r); //求める範囲とは違っても評価が行われることがある！
if (r <= a || b <= l) return;
if (a <= l && r <= b) {
sgt_deray[k] = x;
eval_update(k, l, r);
} else {
range_update(a, b, x, 2 * k, l, (l + r) / 2);
range_update(a, b, x, 2 * k + 1, (l + r) / 2, r);
sgt[k] = sgt[2 * k] + sgt[2 * k + 1];
}
}
ll getsum(int a, int b, int k = 1, int l = 0,
int r = -1) //閉区間 l <= x < r とする
{
if (r == -1) r = n;
if (r <= a || b <= l) return intmin;
eval_add(k, l, r);
if (a <= l && r <= b) {
return (r - l) * sgt[k];
} else {
auto v1 = getsum(a, b, 2 * k, l, (l + r) / 2);
auto v2 = getsum(a, b, 2 * k + 1, (l + r) / 2, r);
return v1 + v2;
}
}
ll getmax(int a, int b, int k = 1, int l = 0,
int r = -1) //閉区間 l <= x < r とする
{
if (r == -1) r = n;
if (r <= a || b <= l) return -inf;
eval_update(k, l, r);
if (a <= l && r <= b) {
return sgt[k];
} else {
auto v1 = getmax(a, b, 2 * k, l, (l + r) / 2);
auto v2 = getmax(a, b, 2 * k + 1, (l + r) / 2, r);
return max(v1, v2);
}
}
ll get_min(int a, int b, int k = 1, int l = 0,
int r = -1) //閉区間 l <= x < r とする
{
if (r == -1) r = n;
if (r <= a || b <= l) return inf;
eval_update(k, l, r);
if (a <= l && r <= b) {
return sgt[k];
} else {
auto v1 = get_min(a, b, 2 * k, l, (l + r) / 2);
auto v2 = get_min(a, b, 2 * k + 1, (l + r) / 2, r);
return min(v1, v2);
}
}
void range_update_gcd(int a, int b, ll x, int k = 1, int l = 0,
int r = -1) {
if (r == -1) r = n;
eval_add(k, l,
r); //求める範囲とは違っても評価が行われることがある！
if (r <= a || b <= l) return;
if (a <= l && r <= b) {
sgt_deray[k] = x;
eval_add(k, l, r);
} else {
range_update_gcd(a, b, x, 2 * k, l, (l + r) / 2);
range_update_gcd(a, b, x, 2 * k + 1, (l + r) / 2, r);
sgt[k] = gcd(sgt[2 * k], sgt[2 * k + 1]);
}
}
ll get_gcd(int a, int b, int k = 1, int l = 0,
int r = -1) //閉区間 l <= x < r とする
{
if (r == -1) r = n;
if (r <= a || b <= l) return 0;
eval_add(k, l, r);
if (a <= l && r <= b) {
return sgt[k];
} else {
auto v1 = get_gcd(a, b, 2 * k, l, (l + r) / 2);
auto v2 = get_gcd(a, b, 2 * k + 1, (l + r) / 2, r);
return gcd(v1, v2);
}
}
void printsegtree() {
for (int i = 0; i < 2 * n; i++) {
cout << sgt[i] << " ";
}
cout << endl;
for (int i = 0; i < 2 * n; i++) {
cout << sgt_deray[i] << " ";
}
cout << endl;
}
};
// void dfs_1(graph &tree, int u)
// {
// cout << u << rt;
// for (auto [v, _] : tree.nodes[u].connect)
// if (v != tree.root && tree.nodes[v].parent == -1)
// {
// tree.nodes[v].parent = u;
// dfs_1(tree, v);
// tree.nodes[u].subtree += tree.nodes[v].subtree;
// tree.nodes[u].children.emplace_back(PII(tree.nodes[v].subtree,
// v));
// }
// }
// void dfs_2(graph &tree, int u, int d)
// {
// cout << u << wsp << d << rt;
// sort(allpt_r(tree.nodes[u].children));
// rep(j, tree.nodes[u].children.size())
// {
// auto [_, v] = tree.nodes[u].children[j];
// cout << (VI){u, (int)v, j};
// dfs_2(tree, v, j == 0 ? d : d + 1);
// }
// }
template <typename T>
class Matrix_n {
int matsize;
vector<vector<T>> mat;
public:
Matrix_n() {
matsize = 0;
vector<vector<T>> mat;
}
Matrix_n(int n) {
matsize = n;
mat.resize(n);
rep(i, n) rep(j, n) mat[i].emplace_back(0);
}
Matrix_n(const vector<vector<T>> &inmat) {
int n = inmat.size();
matsize = n;
mat.resize(n);
rep(i, n) {
mat[i].resize(n);
rep(j, n) { mat[i][j] = inmat[i][j]; }
}
}
void identify() {
rep(i, matsize) rep(j, matsize) { mat[i][j] = i == j ? 1 : 0; }
}
T getone(const int &i, const int &j) { return mat[i][j]; }
int getsize() { return matsize; }
const Matrix_n operator+(const Matrix_n &b) {
Matrix_n ret(matsize);
rep(i, matsize) rep(j, matsize) {
ret.mat[i][j] = mat[i][j] + b.mat[i][j];
}
return ret;
}
const Matrix_n operator-(const Matrix_n &b) {
Matrix_n ret(matsize);
rep(i, matsize) rep(j, matsize) {
ret.mat[i][j] = mat[i][j] - b.mat[i][j];
}
return ret;
}
const Matrix_n operator*(const Matrix_n &b) {
Matrix_n ret(matsize);
rep(i, matsize) rep(j, matsize) rep(k, matsize) {
ret.mat[i][j] += mat[i][k] * b.mat[k][j];
ret.mat[i][j] %= mod;
}
return ret;
}
const Matrix_n operator%(const int &b) {
Matrix_n ret(matsize);
rep(i, matsize) rep(j, matsize) { ret.mat[i][j] = mat[i][j] % b; }
return ret;
}
const Matrix_n operator+() { return *this; }
const Matrix_n operator-() {
Matrix_n ret(matsize);
rep(i, matsize) rep(j, matsize) { ret.mat[i][j] = -mat[i][j]; }
return ret;
}
Matrix_n &operator+=(const Matrix_n &b) {
rep(i, matsize) rep(j, matsize) { mat[i][j] += b.mat[i][j]; }
return *this;
}
Matrix_n &operator-=(const Matrix_n &b) {
rep(i, matsize) rep(j, matsize) { mat[i][j] -= b.mat[i][j]; }
return *this;
}
Matrix_n &operator%=(const int &b) {
rep(i, matsize) rep(j, matsize) { mat[i][j] %= b; }
return *this;
}
void showmat() { cout << mat; }
};
template <typename T>
Matrix_n<T> mat_pow_mod(Matrix_n<T> a, ll p, ll m = mod) {
const int n = a.getsize();
Matrix_n<T> b(n);
b.identify();
while (p > 0) {
if (p % 2) {
b = b * a;
b %= m;
}
p /= 2;
a = a * a;
a %= m;
}
return b;
}
template <typename T>
Matrix_n<T> mat_pow_no_mod(Matrix_n<T> a, ll p) {
const int n = a.getsize();
Matrix_n<T> b(n);
b.identify();
while (p > 0) {
if (p % 2) {
b = b * a;
}
p /= 2;
a = a * a;
}
return b;
}
template <typename T>
T mex(vector<T> v) {
sort(allpt(v));
v.erase(unique(v.begin(), v.end()), v.end());
int ret = 0;
for (auto x : v) {
if (ret < x) return ret;
ret++;
}
return ret;
}
void dfs(graph &tree, int u) {
for (auto [v, c] : tree.nodes[u].connect) {
if (tree.nodes[v].parent == -1 && v != tree.root) {
// cout << u << wsp << v << rt;
tree.nodes[v].parent = u;
tree.nodes[v].depth = tree.nodes[u].depth + 1;
tree.nodes[v].weight = tree.nodes[u].weight + c;
dfs(tree, v);
}
}
}
int goup(int p, int x, const VVI &doubling) {
rep(i, 100) {
if (x == 0) break;
if (x % 2 == 1) p = doubling[i][p];
x /= 2;
}
return p;
}
int getlcp(int a, int b, const graph &tree, const VVI &doubling) {
auto da = tree.nodes[a].depth;
auto db = tree.nodes[b].depth;
auto d = abs(da - db), e = min(da, db);
if (da > db)
a = goup(a, d, doubling);
else
b = goup(b, d, doubling);
if (a == b) return a;
ll ok{e}, ng{0}, mid;
while (abs(ok - ng) > 1) {
mid = (ok + ng) / 2;
if (goup(a, mid, doubling) == goup(b, mid, doubling))
ok = mid;
else
ng = mid;
}
return goup(a, ok, doubling);
}
int main() {
cin.tie(0);
ios::sync_with_stdio(false);
// リアクティブ問題のときはコメントアウト
#ifdef DEBUG
cout << "DEBUG MODE" << endl;
// ifstream in("input.txt"); // for debug
// cin.rdbuf(in.rdbuf()); // for debug
chrono::system_clock::time_point timestart, timeend; // for debug
timestart = std::chrono::system_clock::now(); // for debug
#endif
int n, q, m{40}, a, b, c;
cin >> n;
graph tree(n);
rep(_, n - 1) tree.getconnect_cost();
cout << n << rt;
dfs(tree, tree.root);
VVI doubling(m, VI(n, -1));
rep(i, n) { doubling[0][i] = tree.nodes[i].parent; }
rep(i, m - 1) rep(j, n) {
if (doubling[i][j] != -1)
doubling[i + 1][j] = doubling[i][doubling[i][j]];
}
cin >> q;
rep(_, q) {
cin >> a >> b >> c;
auto lab = getlcp(a, b, tree, doubling);
auto lbc = getlcp(b, c, tree, doubling);
auto lca = getlcp(c, a, tree, doubling);
cout << tree.nodes[a].weight + tree.nodes[b].weight +
tree.nodes[c].weight - tree.nodes[lab].weight -
tree.nodes[lbc].weight - tree.nodes[lca].weight
<< rt;
}
#ifdef DEBUG
timeend = chrono::system_clock::now();
auto elapsed =
chrono::duration_cast<chrono::milliseconds>(timeend - timestart)
.count();
cout << "Time is " << elapsed << "ms" << std::endl;
#endif
return 0;
}