結果
問題 | No.649 ここでちょっとQK! |
ユーザー | risujiroh |
提出日時 | 2019-01-03 02:06:18 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 384 ms / 3,000 ms |
コード長 | 6,169 bytes |
コンパイル時間 | 2,138 ms |
コンパイル使用メモリ | 179,060 KB |
実行使用メモリ | 16,128 KB |
最終ジャッジ日時 | 2024-11-22 10:40:03 |
合計ジャッジ時間 | 9,221 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
(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 | AC | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 24 ms
5,248 KB |
testcase_04 | AC | 133 ms
16,000 KB |
testcase_05 | AC | 133 ms
15,872 KB |
testcase_06 | AC | 134 ms
16,128 KB |
testcase_07 | AC | 2 ms
5,248 KB |
testcase_08 | AC | 2 ms
5,248 KB |
testcase_09 | AC | 2 ms
5,248 KB |
testcase_10 | AC | 2 ms
5,248 KB |
testcase_11 | AC | 2 ms
5,248 KB |
testcase_12 | AC | 159 ms
8,960 KB |
testcase_13 | AC | 156 ms
8,960 KB |
testcase_14 | AC | 156 ms
8,960 KB |
testcase_15 | AC | 175 ms
9,088 KB |
testcase_16 | AC | 161 ms
9,088 KB |
testcase_17 | AC | 185 ms
9,728 KB |
testcase_18 | AC | 205 ms
10,240 KB |
testcase_19 | AC | 226 ms
10,880 KB |
testcase_20 | AC | 249 ms
11,264 KB |
testcase_21 | AC | 278 ms
12,032 KB |
testcase_22 | AC | 300 ms
12,544 KB |
testcase_23 | AC | 318 ms
13,056 KB |
testcase_24 | AC | 339 ms
13,568 KB |
testcase_25 | AC | 359 ms
14,080 KB |
testcase_26 | AC | 384 ms
14,592 KB |
testcase_27 | AC | 2 ms
5,248 KB |
testcase_28 | AC | 2 ms
5,248 KB |
testcase_29 | AC | 3 ms
5,248 KB |
testcase_30 | AC | 156 ms
9,088 KB |
testcase_31 | AC | 152 ms
9,088 KB |
testcase_32 | AC | 2 ms
5,248 KB |
testcase_33 | AC | 2 ms
5,248 KB |
testcase_34 | AC | 2 ms
5,248 KB |
testcase_35 | AC | 2 ms
5,248 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using uint = unsigned int; using lint = long long int; using ulint = unsigned long long int; template<class T = int> using V = vector<T>; template<class T = int> using VV = V< V<T> >; template<class T, class U> void assign(V<T>& v, int n, const U& a) { v.assign(n, a); } template<class T, class... Args> void assign(V<T>& v, int n, const Args&... args) { v.resize(n); for (auto&& e : v) assign(e, args...); } template<class Int> Int rng(Int a, Int b) { static mt19937 mt(chrono::steady_clock().now().time_since_epoch().count()); assert(a < b); return uniform_int_distribution<Int>(a, b - 1)(mt); } namespace RandomizedBinarySearchTree { using T = lint; T op(const T& lhs, const T& rhs) { return min(lhs, rhs); } T op(const T& lhs, const T& mhs, const T& rhs) { return op(op(lhs, mhs), rhs); } constexpr T e = 9e18; using U = int; T ap(const U& f, const T& x) { return x + f; } U cp(const U& g, const U& f) { return f + g; } constexpr U id = 0; struct Node; using Tree = Node*; struct Node { int sz = 0; T val = e, acc = e; U laz = id; bool rev = false; Tree cl = nullptr, cr = nullptr; Node() {} // nil Node(const T& val); // leaf Node(const T& val, const T& acc, const U& laz, bool rev, Tree cl, Tree cr) : sz(cl->sz + 1 + cr->sz), val(val), acc(acc), laz(laz), rev(rev), cl(cl), cr(cr) {} }; Tree nil = new Node(); Node::Node(const T& val) : sz(1), val(val), acc(val), cl(nil), cr(nil) {} Tree act(Tree t, const U& f) { if (t == nil) return t; t->val = ap(f, t->val); t->acc = ap(f, t->acc); t->laz = cp(f, t->laz); return t; } Tree reverse(Tree t) { if (t == nil) return t; swap(t->cl, t->cr); t->rev ^= true; return t; } Tree push(Tree t) { if (t->laz == id and !t->rev) return t; if (t->laz != id) { t->cl = act(t->cl, t->laz); t->cr = act(t->cr, t->laz); t->laz = id; } if (t->rev) { t->cl = reverse(t->cl); t->cr = reverse(t->cr); t->rev = false; } return t; } Tree update(Tree t) { t->sz = t->cl->sz + 1 + t->cr->sz; t->acc = op(t->cl->acc, t->val, t->cr->acc); return t; } template<class Itr> Tree build(Itr first, Itr last) { int n = distance(first, last); if (n == 0) return nil; Itr middle = next(first, n / 2); Tree cl = build(first, middle); Tree cr = build(next(middle), last); return new Node(*middle, op(cl->acc, *middle, cr->acc), id, false, cl, cr); } template<class Itr> Itr dump(Tree t, Itr res) { if (t == nil) return res; t = push(t); res = dump(t->cl, res); *res++ = t->val; res = dump(t->cr, res); return res; } Tree rebuild(Tree t) { V<T> v(t->sz); dump(t, begin(v)); return build(begin(v), end(v)); } Tree merge(Tree tl, Tree tr) { if (tr == nil) return tl; if (tl == nil) return tr; if (rng(0, tl->sz + tr->sz) < tl->sz) { tl = push(tl); tl->cr = merge(tl->cr, tr); return update(tl); } else { tr = push(tr); tr->cl = merge(tl, tr->cl); return update(tr); } } Tree merge(Tree tl, Tree tm, Tree tr) { return merge(merge(tl, tm), tr); } pair<Tree, Tree> split(Tree t, int i) { if (t == nil) return {nil, nil}; t = push(t); if (i <= t->cl->sz) { Tree tl; tie(tl, t->cl) = split(t->cl, i); return {tl, update(t)}; } else { Tree tr; tie(t->cr, tr) = split(t->cr, i - t->cl->sz - 1); return {update(t), tr}; } } tuple<Tree, Tree, Tree> split(Tree t, int l, int r) { Tree tl, tm, tr; tie(tl, tr) = split(t, r); tie(tl, tm) = split(tl, l); return make_tuple(tl, tm, tr); } Tree insert(Tree t, int i, const T& val) { Tree tl, tr; tie(tl, tr) = split(t, i); return merge(tl, new Node(val), tr); } Tree erase(Tree t, int i) { Tree tl, tm, tr; tie(tl, tm, tr) = split(t, i, i + 1); return merge(tl, tr); } T get_val(Tree t, int i) { if (t == nil) return e; if (i == t->cl->sz) return t->val; t = push(t); if (i < t->cl->sz) return get_val(t->cl, i); else return get_val(t->cr, i - t->cl->sz - 1); } Tree set_val(Tree t, int i, const T& val) { if (t == nil) return t; t = push(t); if (i == t->cl->sz) { t->val = val; return update(t); } if (i < t->cl->sz) { t->cl = set_val(t->cl, i, val); return update(t); } else { t->cr = set_val(t->cr, i - t->cl->sz - 1, val); return update(t); } } T acc(Tree t, int l, int r) { if (t == nil or l <= 0 and t->sz <= r) return t->acc; t = push(t); T resl = l < t->cl->sz ? acc(t->cl, l, r) : e; T resr = t->cl->sz + 1 < r ? acc(t->cr, l - t->cl->sz - 1, r - t->cl->sz - 1) : e; T resm = l <= t->cl->sz and t->cl->sz < r ? t->val : e; return op(resl, resm, resr); } Tree act(Tree t, int l, int r, const U& f) { if (t == nil or l <= 0 and t->sz <= r) return act(t, f); t = push(t); if (l < t->cl->sz) t->cl = act(t->cl, l, r, f); if (t->cl->sz + 1 < r) t->cr = act(t->cr, l - t->cl->sz - 1, r - t->cl->sz - 1, f); if (l <= t->cl->sz and t->cl->sz < r) t->val = ap(f, t->val); return update(t); } Tree reverse(Tree t, int l, int r) { Tree tl, tm, tr; tie(tl, tm, tr) = split(t, l, r); tm = reverse(tm); return merge(tl, tm, tr); } int lower_bound(Tree t, const T& val) { if (t == nil) return 0; t = push(t); if (val <= t->val) return lower_bound(t->cl, val); else return t->cl->sz + 1 + lower_bound(t->cr, val); } Tree insert(Tree t, const T& val) { return insert(t, lower_bound(t, val), val); } } using namespace RandomizedBinarySearchTree; int main() { cin.tie(nullptr); ios_base::sync_with_stdio(false); int q, k; cin >> q >> k; Tree t = nil; while (q--) { int type; cin >> type; if (type == 1) { lint v; cin >> v; t = insert(t, v); } else { if (t->sz >= k) { cout << get_val(t, k - 1) << '\n'; t = erase(t, k - 1); } else cout << -1 << '\n'; } } }