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Submission #754458

# Submission time Handle Problem Language Result Execution time Memory
754458 2023-06-07T20:08:46 Z sheldon Global Warming (CEOI18_glo) C++14
100 / 100
 53 ms 4424 KB 
#include <bits/stdc++.h>

using namespace std;

void solve() {
    int n, x;
    cin >> n >> x;
    vector<int> a(n);
    for (int i = 0; i < n; ++i) {
        cin >> a[i];
    }
    vector<int> dp;
    vector<int> longest(n);
    for (int i = 0; i < n; ++i) {
        auto it = lower_bound(dp.begin(), dp.end(), a[i]);
        if (it == dp.end()) {
            dp.push_back(a[i]);
            longest[i] = dp.size();
        } else {
            *it = a[i];
            longest[i] = it - dp.begin() + 1;
        }
    }
    dp.clear();
    int ans = 0;
    for (int i = n - 1; i >= 0; --i) {
        auto it = lower_bound(dp.begin(), dp.end(), -a[i] + x);
        ans = max(ans, int(it - dp.begin()) + longest[i]);
        it = lower_bound(dp.begin(), dp.end(), -a[i]); 
        if (it == dp.end()) dp.push_back(-a[i]);
        else *it = -a[i];
    }
    cout << ans;
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    solve();
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 320 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 320 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 328 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 328 KB Output is correct
23 Correct 1 ms 320 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 340 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 49 ms 2004 KB Output is correct
2 Correct 45 ms 1888 KB Output is correct
3 Correct 45 ms 1872 KB Output is correct
4 Correct 44 ms 1900 KB Output is correct
5 Correct 27 ms 2520 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 660 KB Output is correct
2 Correct 10 ms 596 KB Output is correct
3 Correct 12 ms 724 KB Output is correct
4 Correct 7 ms 852 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 852 KB Output is correct
7 Correct 10 ms 596 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 1108 KB Output is correct
2 Correct 22 ms 1112 KB Output is correct
3 Correct 42 ms 1896 KB Output is correct
4 Correct 30 ms 2528 KB Output is correct
5 Correct 14 ms 1492 KB Output is correct
6 Correct 26 ms 2364 KB Output is correct
7 Correct 26 ms 2392 KB Output is correct
8 Correct 19 ms 1108 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 320 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 328 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 328 KB Output is correct
23 Correct 1 ms 320 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 49 ms 2004 KB Output is correct
28 Correct 45 ms 1888 KB Output is correct
29 Correct 45 ms 1872 KB Output is correct
30 Correct 44 ms 1900 KB Output is correct
31 Correct 27 ms 2520 KB Output is correct
32 Correct 11 ms 660 KB Output is correct
33 Correct 10 ms 596 KB Output is correct
34 Correct 12 ms 724 KB Output is correct
35 Correct 7 ms 852 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 7 ms 852 KB Output is correct
38 Correct 10 ms 596 KB Output is correct
39 Correct 20 ms 1108 KB Output is correct
40 Correct 22 ms 1112 KB Output is correct
41 Correct 42 ms 1896 KB Output is correct
42 Correct 30 ms 2528 KB Output is correct
43 Correct 14 ms 1492 KB Output is correct
44 Correct 26 ms 2364 KB Output is correct
45 Correct 26 ms 2392 KB Output is correct
46 Correct 19 ms 1108 KB Output is correct
47 Correct 23 ms 1968 KB Output is correct
48 Correct 28 ms 2096 KB Output is correct
49 Correct 53 ms 3816 KB Output is correct
50 Correct 27 ms 3664 KB Output is correct
51 Correct 22 ms 2960 KB Output is correct
52 Correct 29 ms 3792 KB Output is correct
53 Correct 24 ms 3668 KB Output is correct
54 Correct 30 ms 4424 KB Output is correct
55 Correct 39 ms 3852 KB Output is correct