結果

問題 No.2809 Sort Query
ユーザー kwm_tkwm_t
提出日時 2024-07-13 11:08:37
言語 C++23
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 799 ms / 2,000 ms
コード長 3,265 bytes
コンパイル時間 6,262 ms
コンパイル使用メモリ 321,832 KB
実行使用メモリ 34,216 KB
最終ジャッジ日時 2024-07-13 11:09:26
合計ジャッジ時間 47,301 ms
ジャッジサーバーID
(参考情報)
judge3 / judge2
このコードへのチャレンジ
(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
6,816 KB
testcase_01 AC 473 ms
31,732 KB
testcase_02 AC 450 ms
32,732 KB
testcase_03 AC 476 ms
32,188 KB
testcase_04 AC 453 ms
31,984 KB
testcase_05 AC 445 ms
31,560 KB
testcase_06 AC 371 ms
30,988 KB
testcase_07 AC 333 ms
30,816 KB
testcase_08 AC 333 ms
30,788 KB
testcase_09 AC 333 ms
30,720 KB
testcase_10 AC 331 ms
30,296 KB
testcase_11 AC 222 ms
31,408 KB
testcase_12 AC 215 ms
31,292 KB
testcase_13 AC 224 ms
31,792 KB
testcase_14 AC 224 ms
31,912 KB
testcase_15 AC 223 ms
31,816 KB
testcase_16 AC 225 ms
32,052 KB
testcase_17 AC 224 ms
31,788 KB
testcase_18 AC 222 ms
31,004 KB
testcase_19 AC 224 ms
31,484 KB
testcase_20 AC 220 ms
31,492 KB
testcase_21 AC 412 ms
33,256 KB
testcase_22 AC 414 ms
33,344 KB
testcase_23 AC 410 ms
33,340 KB
testcase_24 AC 414 ms
34,216 KB
testcase_25 AC 420 ms
33,416 KB
testcase_26 AC 584 ms
32,720 KB
testcase_27 AC 588 ms
32,064 KB
testcase_28 AC 578 ms
32,092 KB
testcase_29 AC 576 ms
32,572 KB
testcase_30 AC 573 ms
32,620 KB
testcase_31 AC 366 ms
31,060 KB
testcase_32 AC 368 ms
31,000 KB
testcase_33 AC 366 ms
30,412 KB
testcase_34 AC 363 ms
31,140 KB
testcase_35 AC 365 ms
30,344 KB
testcase_36 AC 187 ms
31,240 KB
testcase_37 AC 187 ms
32,500 KB
testcase_38 AC 188 ms
30,972 KB
testcase_39 AC 188 ms
30,864 KB
testcase_40 AC 190 ms
31,816 KB
testcase_41 AC 778 ms
26,316 KB
testcase_42 AC 768 ms
27,024 KB
testcase_43 AC 799 ms
26,032 KB
testcase_44 AC 792 ms
26,436 KB
testcase_45 AC 760 ms
26,360 KB
testcase_46 AC 718 ms
26,572 KB
testcase_47 AC 745 ms
26,004 KB
testcase_48 AC 723 ms
25,796 KB
testcase_49 AC 725 ms
26,700 KB
testcase_50 AC 736 ms
25,720 KB
testcase_51 AC 735 ms
18,364 KB
testcase_52 AC 582 ms
18,492 KB
testcase_53 AC 616 ms
18,368 KB
testcase_54 AC 578 ms
18,368 KB
testcase_55 AC 610 ms
18,368 KB
testcase_56 AC 348 ms
20,968 KB
testcase_57 AC 326 ms
14,904 KB
testcase_58 AC 267 ms
18,160 KB
testcase_59 AC 314 ms
15,064 KB
testcase_60 AC 283 ms
21,580 KB
testcase_61 AC 371 ms
29,356 KB
testcase_62 AC 283 ms
18,736 KB
testcase_63 AC 368 ms
20,836 KB
testcase_64 AC 442 ms
31,488 KB
testcase_65 AC 229 ms
19,532 KB
testcase_66 AC 2 ms
6,940 KB
testcase_67 AC 2 ms
6,940 KB
testcase_68 AC 2 ms
6,940 KB
testcase_69 AC 2 ms
6,944 KB
testcase_70 AC 2 ms
6,944 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
In constructor 'FenwickTree::FenwickTree(int)',
    inlined from 'int main()' at main.cpp:77:29:
main.cpp:25:17: warning: 'bit.FenwickTree::size' may be used uninitialized [-Wmaybe-uninitialized]
   25 |                 size += sz;
      |                 ^~~~
main.cpp: In function 'int main()':
main.cpp:77:21: note: 'bit' declared here
   77 |         FenwickTree bit(comp.size());
      |                     ^~~

ソースコード

diff #

#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
//using mint = modint1000000007;
//const int mod = 1000000007;
//using mint = modint998244353;
//const int mod = 998244353;
//const int INF = 1e9;
//const long long LINF = 1e18;
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define rep2(i,l,r)for(int i=(l);i<(r);++i)
#define rrep(i, n) for (int i = (n) - 1; i >= 0; --i)
#define rrep2(i,l,r)for(int i=(r) - 1;i>=(l);--i)
#define all(x) (x).begin(),(x).end()
#define allR(x) (x).rbegin(),(x).rend()
#define P pair<int,int>
template<typename A, typename B> inline bool chmax(A & a, const B & b) { if (a < b) { a = b; return true; } return false; }
template<typename A, typename B> inline bool chmin(A & a, const B & b) { if (a > b) { a = b; return true; } return false; }
struct FenwickTree {
	vector<int> tree;
	int size;
	int start;
	FenwickTree(int sz) {
		size += sz;
		tree.resize(size + 1);
		start = 0;
		while ((1 << (start + 1)) <= size)start++;
	}
	void add(int pos, int val) {
		pos++;
		while (pos <= size) {
			tree[pos] += val;
			pos += pos & -pos;
		}
	}
	int bisect(int pos) {
		int now = 0;
		int val = 0;
		for (int i = start; i >= 0; i--) {
			if (now + (1 << i) <= size && val + tree[now + (1 << i)] <= pos) {
				now += 1 << i;
				val += tree[now];
			}
		}
		return now;
	}
};
int main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	int n, q; cin >> n >> q;
	vector<long long>a(n);
	rep(i, n)cin >> a[i];
	struct Query {
		int t;
		int k;
		long long x;
		Query(int t = -1, int k = -1, long long x = -1) :t(t), k(k), x(x) {}
		void output() {
			std::cout << t << " " << k << " " << x << endl;
		}
	};
	vector<long long>comp = a;
	vector<Query>query(q);
	rep(i, q) {
		cin >> query[i].t;
		if (3 == query[i].t) cin >> query[i].k;
		else if (1 == query[i].t) {
			cin >> query[i].k >> query[i].x;
			comp.push_back(query[i].x);
		}
	}
	sort(all(comp));
	comp.erase(unique(all(comp)), comp.end());
	//fenwick_tree<int> bit(comp.size());
	FenwickTree bit(comp.size());

	rep(i, q) {
		if (1 == query[i].t) {
			query[i].x = lower_bound(all(comp), query[i].x) - comp.begin();
		}
	}
	vector<long long>change(n, -1);
	vector<pair<long long, long long>>chq;
	vector<int>upd;
	rep(i, n) {
		a[i] = lower_bound(all(comp), a[i]) - comp.begin();
		change[i] = a[i];
		upd.push_back(i);
	}
	bit.add(0, n);
	auto f = [&](int x)->int {
		return bit.bisect(x);
		/*int ok = 0;
		int ng = comp.size();
		while (abs(ok - ng) > 1) {
			int mid = (ok + ng) / 2;
			bool chk = bit.sum(0, mid) <= x;
			if (chk)ok = mid;
			else ng = mid;
		}
		return ok;*/
	};
	rep(i, q) {
		int t = query[i].t;
		int k = query[i].k;
		int x = query[i].x;
		if (1 == t) {
			change[k - 1] = x;
			upd.push_back(k - 1);
		}
		else if (2 == t) {
			while (!upd.empty()) {
				if (-1 != change[upd.back()]) {
					int pos = f(upd.back());
					chq.push_back({ pos,change[upd.back()] });
					change[upd.back()] = -1;
				}
				upd.pop_back();
			}
			while (!chq.empty()) {
				auto[f, s] = chq.back();
				bit.add(f, -1);
				bit.add(s, 1);
				chq.pop_back();
			}
		}
		else {
			if (-1 != change[k - 1]) {
				cout << comp[change[k - 1]] << endl;
			}
			else {
				cout << comp[f(k - 1)] << endl;
			}
		}
	}
	return 0;
}
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