답안 #1090035

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1090035	2024-09-17T15:55:46 Z	ssitaram	Global Warming (CEOI18_glo)	C++17	100 / 100	42 ms	5468 KB

#include <bits/stdc++.h>
using namespace std;

int main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	int n, x; cin >> n >> x;
	vector<int> a(n);
	for (int i = 0; i < n; ++i) cin >> a[i];
	vector<int> d(n + 1, INT32_MAX);
	d[0] = INT32_MIN;
	vector<pair<int, int>> at(n + 1, {0, INT32_MIN});
	for (int i = 0; i < n; ++i) {
		int l = upper_bound(d.begin(), d.end(), a[i] - x) - d.begin();
		if (d[l - 1] < a[i] - x) {
			d[l] = a[i] - x;
			at[i + 1] = {l, a[i] - x};
		}
	}
	int ans = at[n].first;
	d.assign(n + 1, INT32_MAX);
	d[0] = INT32_MIN;
	for (int i = n - 1; i >= 0; --i) {
		int l = upper_bound(d.begin(), d.end(), -a[i]) - d.begin();
		if (d[l - 1] < -a[i]) {
			d[l] = -a[i];
		}
		l = lower_bound(d.begin(), d.end(), -at[i].second) - d.begin() - 1;
		ans = max(ans, at[i].first + l);
	}
	cout << ans << '\n';
	return 0;
}

Subtask #1
5.0 / 5.0

#	결과	메모리	Grader output
1	Correct	344 KB	Output is correct
2	Correct	344 KB	Output is correct
3	Correct	344 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Correct	348 KB	Output is correct
6	Correct	348 KB	Output is correct
7	Correct	348 KB	Output is correct
8	Correct	348 KB	Output is correct
9	Correct	344 KB	Output is correct
10	Correct	348 KB	Output is correct
11	Correct	348 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	메모리	Grader output
1	Correct	344 KB	Output is correct
2	Correct	344 KB	Output is correct
3	Correct	344 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Correct	348 KB	Output is correct
6	Correct	348 KB	Output is correct
7	Correct	348 KB	Output is correct
8	Correct	348 KB	Output is correct
9	Correct	344 KB	Output is correct
10	Correct	348 KB	Output is correct
11	Correct	348 KB	Output is correct
12	Correct	348 KB	Output is correct
13	Correct	600 KB	Output is correct
14	Correct	344 KB	Output is correct
15	Correct	348 KB	Output is correct
16	Correct	348 KB	Output is correct
17	Correct	348 KB	Output is correct
18	Correct	348 KB	Output is correct

Subtask #3
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	344 KB	Output is correct
3	Correct	0 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	344 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	600 KB	Output is correct
14	Correct	0 ms	344 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	0 ms	464 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	344 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	42 ms	5460 KB	Output is correct
2	Correct	38 ms	5456 KB	Output is correct
3	Correct	37 ms	5380 KB	Output is correct
4	Correct	37 ms	5456 KB	Output is correct
5	Correct	28 ms	4700 KB	Output is correct

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	1624 KB	Output is correct
2	Correct	9 ms	1628 KB	Output is correct
3	Correct	10 ms	1732 KB	Output is correct
4	Correct	8 ms	1492 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	8 ms	1372 KB	Output is correct
7	Correct	9 ms	1628 KB	Output is correct

Subtask #6
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	19 ms	2908 KB	Output is correct
2	Correct	18 ms	2908 KB	Output is correct
3	Correct	38 ms	5468 KB	Output is correct
4	Correct	32 ms	4772 KB	Output is correct
5	Correct	15 ms	2392 KB	Output is correct
6	Correct	26 ms	4448 KB	Output is correct
7	Correct	29 ms	5212 KB	Output is correct
8	Correct	14 ms	2904 KB	Output is correct

Subtask #7
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	344 KB	Output is correct
3	Correct	0 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	344 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	600 KB	Output is correct
14	Correct	0 ms	344 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	0 ms	464 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	344 KB	Output is correct
27	Correct	42 ms	5460 KB	Output is correct
28	Correct	38 ms	5456 KB	Output is correct
29	Correct	37 ms	5380 KB	Output is correct
30	Correct	37 ms	5456 KB	Output is correct
31	Correct	28 ms	4700 KB	Output is correct
32	Correct	9 ms	1624 KB	Output is correct
33	Correct	9 ms	1628 KB	Output is correct
34	Correct	10 ms	1732 KB	Output is correct
35	Correct	8 ms	1492 KB	Output is correct
36	Correct	0 ms	348 KB	Output is correct
37	Correct	8 ms	1372 KB	Output is correct
38	Correct	9 ms	1628 KB	Output is correct
39	Correct	19 ms	2908 KB	Output is correct
40	Correct	18 ms	2908 KB	Output is correct
41	Correct	38 ms	5468 KB	Output is correct
42	Correct	32 ms	4772 KB	Output is correct
43	Correct	15 ms	2392 KB	Output is correct
44	Correct	26 ms	4448 KB	Output is correct
45	Correct	29 ms	5212 KB	Output is correct
46	Correct	14 ms	2904 KB	Output is correct
47	Correct	19 ms	2908 KB	Output is correct
48	Correct	19 ms	2908 KB	Output is correct
49	Correct	40 ms	5468 KB	Output is correct
50	Correct	32 ms	4696 KB	Output is correct
51	Correct	23 ms	3676 KB	Output is correct
52	Correct	31 ms	4704 KB	Output is correct
53	Correct	27 ms	4700 KB	Output is correct
54	Correct	28 ms	5464 KB	Output is correct
55	Correct	30 ms	5468 KB	Output is correct

답안 #1090035

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