This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
/**
* author: wxhtzdy
* created: 03.07.2022 18:28:39
**/
#include "garden.h"
#include "gardenlib.h"
#include <bits/stdc++.h>
using namespace std;
void count_routes(int n, int m, int p, int r[][2], int q, int k[]) {
vector<vector<pair<int, int>>> e(n);
for (int i = 0; i < m; i++) {
if ((int) e[r[i][0]].size() < 2) {
e[r[i][0]].emplace_back(i, r[i][1]);
}
if ((int) e[r[i][1]].size() < 2) {
e[r[i][1]].emplace_back(i, r[i][0]);
}
}
for (int i = 0; i < n; i++) {
if ((int) e[i].size() == 1) {
e[i].push_back(e[i][0]);
}
assert((int) e[i].size() == 2);
}
vector<vector<int>> g(2 * n);
vector<vector<int>> f(2 * n);
function<void(int, int)> Add = [&](int v, int u) {
g[v].push_back(u);
f[u].push_back(v);
};
for (int i = 0; i < n; i++) {
if (e[i][0].first == e[e[i][0].second][0].first) {
Add(i * 2, e[i][0].second * 2 + 1);
} else {
Add(i * 2, e[i][0].second * 2);
}
if (e[i][1].first == e[e[i][1].second][0].first) {
Add(i * 2 + 1, e[i][1].second * 2 + 1);
} else {
Add(i * 2 + 1, e[i][1].second * 2);
}
}
vector<int> in(2 * n);
for (int i = 0; i < 2 * n; i++) {
in[g[i][0]] += 1;
}
vector<int> que;
for (int i = 0; i < 2 * n; i++) {
if (in[i] == 0) {
que.push_back(i);
}
}
for (int b = 0; b < (int) que.size(); b++) {
int i = que[b];
for (int j : g[i]) {
in[j] -= 1;
if (in[j] == 0) {
que.push_back(j);
}
}
}
vector<vector<pair<int, int>>> opt(2 * n);
if (in[2 * p] == 0) {
function<void(int, int)> Dfs = [&](int v, int dep) {
opt[v].emplace_back(dep, 1e9 + 1);
for (int u : f[v]) {
Dfs(u, dep + 1);
}
};
Dfs(2 * p, 0);
}
if (in[2 * p + 1] == 0) {
function<void(int, int)> Dfs = [&](int v, int dep) {
opt[v].emplace_back(dep, 1e9 + 1);
for (int u : f[v]) {
Dfs(u, dep + 1);
}
};
Dfs(2 * p + 1, 0);
}
for (int ver = 0; ver < 2 * n; ver++) {
if (in[ver] == 0) {
continue;
}
que = vector<int>(1, ver);
for (int b = 0; b < (int) que.size(); b++) {
int i = que[b];
for (int j : g[i]) {
in[j] -= 1;
if (in[j] == 0 && j != ver) {
que.push_back(j);
}
}
}
for (int i : que) {
if (i == 2 * p) {
function<void(int, int)> Dfs = [&](int v, int dep) {
opt[v].emplace_back(dep, (int) que.size());
for (int u : f[v]) {
if (u != 2 * p) {
Dfs(u, dep + 1);
}
}
};
Dfs(i, 0);
}
}
for (int i : que) {
if (i == 2 * p + 1) {
function<void(int, int)> Dfs = [&](int v, int dep) {
opt[v].emplace_back(dep, (int) que.size());
for (int u : f[v]) {
if (u != 2 * p + 1) {
Dfs(u, dep + 1);
}
}
};
Dfs(i, 0);
}
}
}
for (int i = 0; i < q; i++) {
int cnt = 0;
for (int j = 0; j < n; j++) {
int add = 0;
for (auto& p : opt[2 * j]) {
if (p.first > k[i]) {
continue;
}
if ((k[i] - p.first) % p.second == 0) {
add = 1;
}
}
cnt += add;
}
answer(cnt);
}
}
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