Submission #1083742

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1083742	2024-09-04T00:46:00 Z	ArtistWall	Global Warming (CEOI18_glo)	C++17	100 / 100	82 ms	5460 KB

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

int temps[200005];
int pref_longest[200005];

int main() {
	int n; int x;
	cin >> n >> x;
	for (int i = 0; i < n; i++) { cin >> temps[i]; }
	vector<int> dp(n, INT_MAX);
	int longest = 0;
	for (int i = 0; i < n; i++) {
		int j = lower_bound(dp.begin(), dp.end(), temps[i]) - dp.begin();
		dp[j] = temps[i];
		pref_longest[i] = j + 1;
		longest = max(longest, pref_longest[i]);
	}

	dp = vector<int>(n, INT_MAX);
	for (int i = n - 1; i >= 0; i--) {
		int pos = lower_bound(dp.begin(), dp.end(), -temps[i] + x) - dp.begin();
		longest = max(longest, pref_longest[i] + pos);

		int insert_pos =
		    lower_bound(dp.begin(), dp.end(), -temps[i]) - dp.begin();
		dp[insert_pos] = -temps[i];
	}
	cout << longest << endl;
}

Subtask #1
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 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	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 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	348 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	348 KB	Output is correct
14	Correct	0 ms	348 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	344 KB	Output is correct

Subtask #3
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 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	348 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	348 KB	Output is correct
14	Correct	0 ms	348 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	344 KB	Output is correct
19	Correct	1 ms	344 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct

Subtask #4
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	75 ms	5460 KB	Output is correct
2	Correct	80 ms	5460 KB	Output is correct
3	Correct	82 ms	5456 KB	Output is correct
4	Correct	75 ms	5460 KB	Output is correct
5	Correct	50 ms	4688 KB	Output is correct

Subtask #5
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	20 ms	1580 KB	Output is correct
2	Correct	19 ms	1624 KB	Output is correct
3	Correct	20 ms	1628 KB	Output is correct
4	Correct	16 ms	1388 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	14 ms	1436 KB	Output is correct
7	Correct	17 ms	1628 KB	Output is correct

Subtask #6
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	36 ms	2908 KB	Output is correct
2	Correct	38 ms	2860 KB	Output is correct
3	Correct	77 ms	5420 KB	Output is correct
4	Correct	50 ms	4692 KB	Output is correct
5	Correct	28 ms	2384 KB	Output is correct
6	Correct	46 ms	4432 KB	Output is correct
7	Correct	63 ms	5180 KB	Output is correct
8	Correct	32 ms	2908 KB	Output is correct

Subtask #7
25.0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 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	348 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	348 KB	Output is correct
14	Correct	0 ms	348 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	344 KB	Output is correct
19	Correct	1 ms	344 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	75 ms	5460 KB	Output is correct
28	Correct	80 ms	5460 KB	Output is correct
29	Correct	82 ms	5456 KB	Output is correct
30	Correct	75 ms	5460 KB	Output is correct
31	Correct	50 ms	4688 KB	Output is correct
32	Correct	20 ms	1580 KB	Output is correct
33	Correct	19 ms	1624 KB	Output is correct
34	Correct	20 ms	1628 KB	Output is correct
35	Correct	16 ms	1388 KB	Output is correct
36	Correct	0 ms	348 KB	Output is correct
37	Correct	14 ms	1436 KB	Output is correct
38	Correct	17 ms	1628 KB	Output is correct
39	Correct	36 ms	2908 KB	Output is correct
40	Correct	38 ms	2860 KB	Output is correct
41	Correct	77 ms	5420 KB	Output is correct
42	Correct	50 ms	4692 KB	Output is correct
43	Correct	28 ms	2384 KB	Output is correct
44	Correct	46 ms	4432 KB	Output is correct
45	Correct	63 ms	5180 KB	Output is correct
46	Correct	32 ms	2908 KB	Output is correct
47	Correct	39 ms	2900 KB	Output is correct
48	Correct	38 ms	2732 KB	Output is correct
49	Correct	72 ms	5404 KB	Output is correct
50	Correct	52 ms	4688 KB	Output is correct
51	Correct	47 ms	3420 KB	Output is correct
52	Correct	56 ms	4684 KB	Output is correct
53	Correct	56 ms	4688 KB	Output is correct
54	Correct	69 ms	5456 KB	Output is correct
55	Correct	70 ms	5460 KB	Output is correct

Submission #1083742

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