結果
問題 | No.2242 Cities and Teleporters |
ユーザー | tokusakurai |
提出日時 | 2023-03-10 22:07:22 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 277 ms / 3,000 ms |
コード長 | 4,113 bytes |
コンパイル時間 | 2,052 ms |
コンパイル使用メモリ | 212,836 KB |
実行使用メモリ | 22,784 KB |
最終ジャッジ日時 | 2024-09-18 04:21:54 |
合計ジャッジ時間 | 9,317 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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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 | 1 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 249 ms
22,656 KB |
testcase_06 | AC | 188 ms
22,784 KB |
testcase_07 | AC | 242 ms
22,656 KB |
testcase_08 | AC | 277 ms
22,656 KB |
testcase_09 | AC | 249 ms
22,656 KB |
testcase_10 | AC | 183 ms
22,784 KB |
testcase_11 | AC | 193 ms
22,656 KB |
testcase_12 | AC | 190 ms
22,656 KB |
testcase_13 | AC | 206 ms
22,656 KB |
testcase_14 | AC | 219 ms
22,784 KB |
testcase_15 | AC | 207 ms
22,656 KB |
testcase_16 | AC | 234 ms
22,784 KB |
testcase_17 | AC | 257 ms
22,656 KB |
testcase_18 | AC | 159 ms
22,400 KB |
testcase_19 | AC | 156 ms
22,400 KB |
testcase_20 | AC | 236 ms
21,760 KB |
testcase_21 | AC | 235 ms
21,888 KB |
testcase_22 | AC | 157 ms
21,888 KB |
testcase_23 | AC | 158 ms
22,656 KB |
testcase_24 | AC | 162 ms
22,784 KB |
testcase_25 | AC | 168 ms
22,656 KB |
ソースコード
#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> H(N), T(N); rep(i, N) cin >> H[i]; rep(i, N) cin >> T[i]; auto xs = T; rearrange(xs); int K = sz(xs); rep(i, N) { H[i] = lb(xs, H[i]); T[i] = lb(xs, T[i]); } vector<int> mi(K, inf); rep(i, N) chmin(mi[T[i]], H[i]); per(i, K - 1) chmin(mi[i], mi[i + 1]); // print(mi); vector<vector<int>> next(20, vector<int>(K, K)); next[0] = mi; rep(i, 19) { rep(j, K) { int k = next[i][j]; if (k < K) next[i + 1][j] = next[i][k]; } } // rep(i, 20) print(next[i]); int Q; cin >> Q; while (Q--) { int u, v; cin >> u >> v; u--, v--; u = T[u], v = H[v]; // cout << u MM v << '\n'; if (v <= u) { cout << "1\n"; continue; } if (v == K || next[19][v] > u) { cout << "-1\n"; continue; } int ans = 0; per(i, 20) { if (next[i][v] <= u) continue; v = next[i][v]; ans += 1 << i; } assert(next[0][v] <= u); cout << ans + 2 << '\n'; } }