Submission #367216

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
367216	2021-02-16T15:28:48 Z	leu_naut	Global Warming (CEOI18_glo)	C++11	100 / 100	136 ms	7028 KB

#include <bits/stdc++.h>
#define ll long long

using namespace std;

ll n, x, v[200005], dp[200005];

int main()
{
    cin >> n >> x;
    for (int i = 0; i < n; i++)
        cin >> v[i];
    vector<ll> lis(n, INT_MAX);
    ll k = 0;
    // longest increasing subsequence ending at i
    for(int i = 0; i < n; i++)
    {
        int j = lower_bound(lis.begin(), lis.end(), v[i])-lis.begin();
        lis[j] = v[i];
        dp[i] = j+1;
        k = max(k, dp[i]);
    }
    lis.assign(n,INT_MAX);
    // longest decreasing subsequence ending at i of reverse
    // = longest increasing subsequence starting at i
    for(int i = n-1; i >= 0; i--)
    {
        int j = lower_bound(lis.begin(), lis.end(), -v[i]+x)-lis.begin();
        int jj = lower_bound(lis.begin(), lis.end(), -v[i])-lis.begin();
        lis[jj] = -v[i];
        k = max(k, dp[i]+j);
    }
    cout << k << endl;
}

Subtask #1
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct

Subtask #3
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	364 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct

Subtask #4
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	135 ms	4972 KB	Output is correct
2	Correct	132 ms	5228 KB	Output is correct
3	Correct	124 ms	5100 KB	Output is correct
4	Correct	124 ms	5100 KB	Output is correct
5	Correct	88 ms	5228 KB	Output is correct

Subtask #5
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	30 ms	1536 KB	Output is correct
2	Correct	31 ms	1644 KB	Output is correct
3	Correct	30 ms	1688 KB	Output is correct
4	Correct	23 ms	1644 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	23 ms	1772 KB	Output is correct
7	Correct	28 ms	2048 KB	Output is correct

Subtask #6
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	58 ms	2668 KB	Output is correct
2	Correct	59 ms	2668 KB	Output is correct
3	Correct	118 ms	4972 KB	Output is correct
4	Correct	88 ms	4972 KB	Output is correct
5	Correct	45 ms	2668 KB	Output is correct
6	Correct	96 ms	4844 KB	Output is correct
7	Correct	104 ms	4844 KB	Output is correct
8	Correct	55 ms	2668 KB	Output is correct

Subtask #7
25.0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	364 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	135 ms	4972 KB	Output is correct
28	Correct	132 ms	5228 KB	Output is correct
29	Correct	124 ms	5100 KB	Output is correct
30	Correct	124 ms	5100 KB	Output is correct
31	Correct	88 ms	5228 KB	Output is correct
32	Correct	30 ms	1536 KB	Output is correct
33	Correct	31 ms	1644 KB	Output is correct
34	Correct	30 ms	1688 KB	Output is correct
35	Correct	23 ms	1644 KB	Output is correct
36	Correct	1 ms	364 KB	Output is correct
37	Correct	23 ms	1772 KB	Output is correct
38	Correct	28 ms	2048 KB	Output is correct
39	Correct	58 ms	2668 KB	Output is correct
40	Correct	59 ms	2668 KB	Output is correct
41	Correct	118 ms	4972 KB	Output is correct
42	Correct	88 ms	4972 KB	Output is correct
43	Correct	45 ms	2668 KB	Output is correct
44	Correct	96 ms	4844 KB	Output is correct
45	Correct	104 ms	4844 KB	Output is correct
46	Correct	55 ms	2668 KB	Output is correct
47	Correct	63 ms	3692 KB	Output is correct
48	Correct	61 ms	3692 KB	Output is correct
49	Correct	136 ms	6892 KB	Output is correct
50	Correct	89 ms	6124 KB	Output is correct
51	Correct	68 ms	4844 KB	Output is correct
52	Correct	102 ms	6252 KB	Output is correct
53	Correct	87 ms	6252 KB	Output is correct
54	Correct	111 ms	7028 KB	Output is correct
55	Correct	132 ms	6968 KB	Output is correct

Submission #367216

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