답안 #483423

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
483423	2021-10-29T10:51:49 Z	benk	Global Warming (CEOI18_glo)	C++17	100 / 100	47 ms	2764 KB

#include "bits/stdc++.h"
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

#define all(x)      x.begin(), x.end()
#define pb          push_back
#define sz(x)       (int)(x.size())
#define ll          long long
#define fi          first
#define se          second
#define lbd         lower_bound
#define ubd         upper_bound

template <typename T>
using ordered_set = tree<T, null_type,
      less<T>, rb_tree_tag,
      tree_order_statistics_node_update>;

const int MOD = 1e9 + 7;
const double eps = 1e-10;
const long long INF = 1e18;
const int N = 2e5 + 10;


void solve() {
	int n, x;
	cin >> n >> x;
	vector<int> v(n);
	for (int i = 0; i < n; i++) {
		cin >> v[i];
	}
	vector<int> lds(n), dp;
	for (int i = n - 1; i >= 0; i--) {
		auto it = lbd(all(dp), -v[i] + x) - dp.begin();
		lds[i] = it + 1;
		it = lbd(all(dp), -v[i]) - dp.begin();
		if (it == sz(dp)) dp.pb(-v[i]);
		else dp[it] = -v[i];
	}
	dp = vector<int>();
	int ans = 0;
	for (int i = 0; i < n; i++) {
		int it = lbd(all(dp), v[i]) - dp.begin();
		if (it == sz(dp)) dp.pb(v[i]);
		else dp[it] = v[i];
		ans = max(ans, it + lds[i]);
	}
	cout << ans;
}

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);

	int tt = 1;
	//cin >> tt;
	while (tt--) {
		solve();
		cout << '\n';
	}
	return 0;
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	0 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	0 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	0 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	0 ms	204 KB	Output is correct
15	Correct	0 ms	204 KB	Output is correct
16	Correct	0 ms	204 KB	Output is correct
17	Correct	0 ms	204 KB	Output is correct
18	Correct	0 ms	204 KB	Output is correct

Subtask #3
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	0 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	0 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	0 ms	204 KB	Output is correct
15	Correct	0 ms	204 KB	Output is correct
16	Correct	0 ms	204 KB	Output is correct
17	Correct	0 ms	204 KB	Output is correct
18	Correct	0 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	204 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	0 ms	204 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	0 ms	204 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	47 ms	2004 KB	Output is correct
2	Correct	45 ms	1876 KB	Output is correct
3	Correct	45 ms	1868 KB	Output is correct
4	Correct	46 ms	1872 KB	Output is correct
5	Correct	28 ms	2752 KB	Output is correct

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	716 KB	Output is correct
2	Correct	11 ms	648 KB	Output is correct
3	Correct	11 ms	716 KB	Output is correct
4	Correct	7 ms	876 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	7 ms	876 KB	Output is correct
7	Correct	10 ms	716 KB	Output is correct

Subtask #6
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	27 ms	1100 KB	Output is correct
2	Correct	21 ms	1112 KB	Output is correct
3	Correct	42 ms	1868 KB	Output is correct
4	Correct	26 ms	2764 KB	Output is correct
5	Correct	12 ms	1548 KB	Output is correct
6	Correct	21 ms	2584 KB	Output is correct
7	Correct	26 ms	2620 KB	Output is correct
8	Correct	18 ms	1108 KB	Output is correct

Subtask #7
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	0 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	0 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	0 ms	204 KB	Output is correct
15	Correct	0 ms	204 KB	Output is correct
16	Correct	0 ms	204 KB	Output is correct
17	Correct	0 ms	204 KB	Output is correct
18	Correct	0 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	204 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	0 ms	204 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	0 ms	204 KB	Output is correct
27	Correct	47 ms	2004 KB	Output is correct
28	Correct	45 ms	1876 KB	Output is correct
29	Correct	45 ms	1868 KB	Output is correct
30	Correct	46 ms	1872 KB	Output is correct
31	Correct	28 ms	2752 KB	Output is correct
32	Correct	11 ms	716 KB	Output is correct
33	Correct	11 ms	648 KB	Output is correct
34	Correct	11 ms	716 KB	Output is correct
35	Correct	7 ms	876 KB	Output is correct
36	Correct	0 ms	204 KB	Output is correct
37	Correct	7 ms	876 KB	Output is correct
38	Correct	10 ms	716 KB	Output is correct
39	Correct	27 ms	1100 KB	Output is correct
40	Correct	21 ms	1112 KB	Output is correct
41	Correct	42 ms	1868 KB	Output is correct
42	Correct	26 ms	2764 KB	Output is correct
43	Correct	12 ms	1548 KB	Output is correct
44	Correct	21 ms	2584 KB	Output is correct
45	Correct	26 ms	2620 KB	Output is correct
46	Correct	18 ms	1108 KB	Output is correct
47	Correct	22 ms	1224 KB	Output is correct
48	Correct	22 ms	1048 KB	Output is correct
49	Correct	46 ms	1868 KB	Output is correct
50	Correct	27 ms	2756 KB	Output is correct
51	Correct	23 ms	2404 KB	Output is correct
52	Correct	26 ms	2764 KB	Output is correct
53	Correct	22 ms	2756 KB	Output is correct
54	Correct	26 ms	2760 KB	Output is correct
55	Correct	36 ms	1880 KB	Output is correct

답안 #483423

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 10.0 / 10.0

Subtask #3 13.0 / 13.0

Subtask #4 10.0 / 10.0

Subtask #5 20.0 / 20.0

Subtask #6 17.0 / 17.0

Subtask #7 25.0 / 25.0

Subtask #1
5.0 / 5.0

Subtask #2
10.0 / 10.0

Subtask #3
13.0 / 13.0

Subtask #4
10.0 / 10.0

Subtask #5
20.0 / 20.0

Subtask #6
17.0 / 17.0

Subtask #7
25.0 / 25.0