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Submission #1025345

# Submission time Handle Problem Language Result Execution time Memory
1025345 2024-07-16T22:26:17 Z eysbutno Global Warming (CEOI18_glo) C++17
100 / 100
 38 ms 4568 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = array<int, 2>;
#define all(x) begin(x), end(x)
#define sz(x) (int) (x).size()

int main() {
    cin.tie(0) -> sync_with_stdio(0);
    int n, x;
    cin >> n >> x;
    vector<int> a(n);
    for (int &i : a) {
        cin >> i;
    }
    vector<int> dp, pf(n);
    int res = 0;
    for (int i = 0; i < n; i++) {
        int ind = lower_bound(all(dp), a[i]) - begin(dp);
        if (ind == sz(dp)) dp.push_back(0);
        dp[ind] = a[i], pf[i] = ind + 1;
        res = max(res, pf[i]);
    }
    dp.clear();
    for (int i = n - 1; i >= 0; i--) {
        int ind = lower_bound(all(dp), x - a[i]) - begin(dp);
        res = max(res, pf[i] + ind);
        ind = lower_bound(all(dp), -a[i]) - begin(dp);
        if (ind == sz(dp)) dp.push_back(0);
        dp[ind] = -a[i];
    }
    cout << res << "\n";
}

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 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 1 ms 344 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 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 1 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 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 452 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 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 1 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 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 452 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 604 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 1884 KB Output is correct
2 Correct 37 ms 3932 KB Output is correct
3 Correct 37 ms 3928 KB Output is correct
4 Correct 37 ms 3932 KB Output is correct
5 Correct 19 ms 3808 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 860 KB Output is correct
2 Correct 9 ms 1148 KB Output is correct
3 Correct 9 ms 1116 KB Output is correct
4 Correct 5 ms 1372 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 5 ms 1116 KB Output is correct
7 Correct 7 ms 1112 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 1116 KB Output is correct
2 Correct 16 ms 1116 KB Output is correct
3 Correct 32 ms 2048 KB Output is correct
4 Correct 19 ms 2528 KB Output is correct
5 Correct 9 ms 1628 KB Output is correct
6 Correct 15 ms 2368 KB Output is correct
7 Correct 22 ms 2528 KB Output is correct
8 Correct 13 ms 1112 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 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 1 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 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 452 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 604 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 37 ms 1884 KB Output is correct
28 Correct 37 ms 3932 KB Output is correct
29 Correct 37 ms 3928 KB Output is correct
30 Correct 37 ms 3932 KB Output is correct
31 Correct 19 ms 3808 KB Output is correct
32 Correct 8 ms 860 KB Output is correct
33 Correct 9 ms 1148 KB Output is correct
34 Correct 9 ms 1116 KB Output is correct
35 Correct 5 ms 1372 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 5 ms 1116 KB Output is correct
38 Correct 7 ms 1112 KB Output is correct
39 Correct 16 ms 1116 KB Output is correct
40 Correct 16 ms 1116 KB Output is correct
41 Correct 32 ms 2048 KB Output is correct
42 Correct 19 ms 2528 KB Output is correct
43 Correct 9 ms 1628 KB Output is correct
44 Correct 15 ms 2368 KB Output is correct
45 Correct 22 ms 2528 KB Output is correct
46 Correct 13 ms 1112 KB Output is correct
47 Correct 18 ms 2140 KB Output is correct
48 Correct 17 ms 2224 KB Output is correct
49 Correct 38 ms 3932 KB Output is correct
50 Correct 21 ms 3808 KB Output is correct
51 Correct 17 ms 3036 KB Output is correct
52 Correct 21 ms 3804 KB Output is correct
53 Correct 19 ms 3808 KB Output is correct
54 Correct 30 ms 4568 KB Output is correct
55 Correct 30 ms 3976 KB Output is correct