165 lines
3.0 KiB
C++
165 lines
3.0 KiB
C++
/* Problem URL: https://codeforces.com/gym/106159/problem/G */
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#include <bits/stdc++.h>
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#include <ext/pb_ds/assoc_container.hpp>
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#include <ext/pb_ds/tree_policy.hpp>
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using namespace std;
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using namespace __gnu_pbds;
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template <class T, class comp = less<>>
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using ordered_set = tree<T, null_type , comp , rb_tree_tag , tree_order_statistics_node_update>;
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#define V vector
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#define rmin(a, b) a = min(a, b)
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#define rmax(a, b) a = max(a, b)
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#define rep(i, lim) for (int i = 0; i < (lim); i++)
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#define nrep(i, s, lim) for (int i = s; i < (lim); i++)
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#define repv(i, v) for (auto &i : (v))
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#define fillv(v) for (auto &itr_ : (v)) { cin >> itr_; }
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#define sortv(v) sort(v.begin(), v.end())
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#define all(v) (v).begin(), (v).end()
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using vi = vector<int>;
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using vvi = vector<vi>;
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using vvvi = vector<vvi>;
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using vvvvi = vector<vvvi>;
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using ll = long long;
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using vl = vector<ll>;
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using vvl = vector<vl>;
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using vvvl = vector<vvl>;
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using vvvvl = vector<vvvl>;
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template<class v>
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auto operator<<(ostream &os, const vector<v> &vec)->ostream& {
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os << vec[0];
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for (size_t i = 1; i < vec.size(); i++) {
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os << ' ' << vec[i];
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}
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os << '\n';
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return os;
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}
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template<class v>
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auto operator>>(istream &is, vector<v> &vec)->istream& {
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for (auto &i : vec) {
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is >> i;
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}
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return is;
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}
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template<class v>
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auto operator<<(ostream &os, const vector<vector<v>> &vec)->ostream& {
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for (auto &i : vec) {
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os << i[0];
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for (size_t j = 1; j < i.size(); j++) {
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os << ' ' << i[j];
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}
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os << '\n';
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}
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return os;
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}
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template<class v>
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auto operator>>(istream &is, vector<vector<v>> &vec)->istream& {
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for (auto &i : vec) {
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for (auto &j : i) {
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is >> j;
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}
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}
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return is;
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}
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const int oo = INT32_MAX >> 1;
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const ll OO = INT64_MAX >> 1;
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void pre()
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{
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}
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#define TEST 0
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void solve()
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{
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int n;
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cin >> n;
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vl a(n);
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vi p(n);
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cin >> a >> p;
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vvi graph(n);
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rep(i, n) {
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int u = i;
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int v = p[i] - 1;
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if (a[u] > a[v]) {
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swap(u, v);
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}
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graph[u].push_back(v);
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}
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// vi group(n);
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// V<bool> vis(n);
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// V<bool> act(n);
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// vi rem;
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// vi add;
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// vi size;
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// int g = -1;
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//
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// int total = 0;
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//
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// function<void(int)> dfs = [&](int i) {
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// act[i] = true;
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// vis[i] = true;
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// group[i] = g;
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// add[g]++;
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// size[g]++;
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//
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// repv(j, graph[i]) {
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// if (vis[j]) {
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// continue;
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// }
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//
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// dfs(j);
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// }
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// };
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//
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// rep(i, n) {
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// if (vis[i]) {
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// continue;
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// }
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//
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// g++;
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// rem.emplace_back();
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// add.emplace_back();
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// size.emplace_back();
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// dfs(i);
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// total += size[g] >> 1;
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// }
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V<bool> activated(n);
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}
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int main()
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{
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ios::sync_with_stdio(false);
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cin.tie(nullptr);
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pre();
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int t;
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(TEST && cin >> t) || (t = 1);
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while (t--) {
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solve();
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}
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}
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