結果

問題 No.2182 KODOKU Stone
ユーザー tokusakurai
提出日時 2023-01-08 16:10:04
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 65 ms / 2,000 ms
コード長 4,406 bytes
コンパイル時間 2,203 ms
コンパイル使用メモリ 199,488 KB
最終ジャッジ日時 2025-02-10 01:10:09
ジャッジサーバーID
(参考情報)
judge3 / judge1
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 37
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (n); i++)
#define per(i, n) for (int i = (n)-1; i >= 0; i--)
#define rep2(i, l, r) for (int i = (l); i < (r); i++)
#define per2(i, l, r) for (int i = (r)-1; i >= (l); i--)
#define each(e, v) for (auto &e : v)
#define MM << " " <<
#define pb push_back
#define eb emplace_back
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define sz(x) (int)x.size()
using ll = long long;
using pii = pair<int, int>;
using pil = pair<int, ll>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;
template <typename T>
using minheap = priority_queue<T, vector<T>, greater<T>>;
template <typename T>
using maxheap = priority_queue<T>;
template <typename T>
bool chmax(T &x, const T &y) {
return (x < y) ? (x = y, true) : false;
}
template <typename T>
bool chmin(T &x, const T &y) {
return (x > y) ? (x = y, true) : false;
}
template <typename T>
int flg(T x, int i) {
return (x >> i) & 1;
}
template <typename T>
void print(const vector<T> &v, T x = 0) {
int n = v.size();
for (int i = 0; i < n; i++) cout << v[i] + x << (i == n - 1 ? '\n' : ' ');
if (v.empty()) cout << '\n';
}
template <typename T>
void printn(const vector<T> &v, T x = 0) {
int n = v.size();
for (int i = 0; i < n; i++) cout << v[i] + x << '\n';
}
template <typename T>
int lb(const vector<T> &v, T x) {
return lower_bound(begin(v), end(v), x) - begin(v);
}
template <typename T>
int ub(const vector<T> &v, T x) {
return upper_bound(begin(v), end(v), x) - begin(v);
}
template <typename T>
void rearrange(vector<T> &v) {
sort(begin(v), end(v));
v.erase(unique(begin(v), end(v)), end(v));
}
template <typename T>
vector<int> id_sort(const vector<T> &v, bool greater = false) {
int n = v.size();
vector<int> ret(n);
iota(begin(ret), end(ret), 0);
sort(begin(ret), end(ret), [&](int i, int j) { return greater ? v[i] > v[j] : v[i] < v[j]; });
return ret;
}
template <typename S, typename T>
pair<S, T> operator+(const pair<S, T> &p, const pair<S, T> &q) {
return make_pair(p.first + q.first, p.second + q.second);
}
template <typename S, typename T>
pair<S, T> operator-(const pair<S, T> &p, const pair<S, T> &q) {
return make_pair(p.first - q.first, p.second - q.second);
}
template <typename S, typename T>
istream &operator>>(istream &is, pair<S, T> &p) {
S a;
T b;
is >> a >> b;
p = make_pair(a, b);
return is;
}
template <typename S, typename T>
ostream &operator<<(ostream &os, const pair<S, T> &p) {
return os << p.first << ' ' << p.second;
}
struct io_setup {
io_setup() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout << fixed << setprecision(15);
}
} io_setup;
const int inf = (1 << 30) - 1;
const ll INF = (1LL << 60) - 1;
// const int MOD = 1000000007;
const int MOD = 998244353;
int main() {
int N;
cin >> N;
vector<int> a(N);
rep(i, N) cin >> a[i];
vector<vector<int>> c(N);
rep(i, N) {
int K;
cin >> K;
c[i].resize(K);
rep(j, K) cin >> c[i][j];
}
int MAX = 300000;
vector<int> cnt2(MAX + 1, 0);
int l = 0, r = inf; // [l,r)
while (r - l > 1) {
fill(all(cnt2), 0);
int m = (l + r) / 2;
int cnt1 = 0, ma1 = -inf;
int ma2 = -inf;
rep(i, N) {
int K = sz(c[i]);
int C = 0;
each(e, c[i]) {
if (e >= m) C++;
}
if (C == K) {
cnt1++;
chmax(ma1, C);
} else {
cnt2[C]++;
chmax(ma2, C);
}
}
bool flag = false;
int ma3 = ma2;
per(i, N) {
if (ma1 >= a[i]) {
flag = true;
} else if (ma3 >= a[i]) {
flag = true;
} else if (ma2 >= a[i] && cnt1 > 0) {
flag = true;
} else if (i == 0 && cnt1 > 0) {
flag = true;
}
if (cnt2[a[i] - 1] > 0) {
cnt2[a[i] - 1]--;
while (ma3 >= 0 && cnt2[ma3] == 0) ma3--;
} else {
if (cnt1 == 0) break;
cnt1--;
if (cnt1 == 0) ma1 = -inf;
}
}
(flag ? l : r) = m;
}
cout << l << '\n';
}
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