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Submission #949430

# Submission time Handle Problem Language Result Execution time Memory
949430 2024-03-19T08:44:53 Z glebustim Global Warming (CEOI18_glo) C++17
100 / 100
 51 ms 4768 KB 
#include <bits/extc++.h>
using namespace std;
using namespace __gnu_pbds;

#define fast ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define all(a) a.begin(), a.end()
using ll = long long;
using ld = long double;
using pii = pair<int, int>;
using vi = vector<int>;
using oset = tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update>;

const int INF = 2e9 + 10;

int main() {
    fast;
    int n, x;
    cin >> n >> x;
    vi a(n);
    for (int i = 0; i < n; ++i)
        cin >> a[i];
    vi b(n + 1, INF);
    b[0] = -INF;
    vi d(n);
    for (int i = n - 1; i >= 0; --i) {
        int j = lower_bound(all(b), -a[i]) - b.begin();
        b[j] = -a[i];
        d[i] = j;
    }
    b.assign(n + 1, INF);
    b[0] = -INF;
    int ans = 0;
    for (int i = 0; i < n; ++i) {
        int j = lower_bound(all(b), a[i] + x) - b.begin();
        ans = max(ans, d[i] + j - 1);
        j = lower_bound(all(b), a[i]) - b.begin();
        b[j] = a[i];
    }
    cout << ans << '\n';
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 360 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 456 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 392 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 360 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 456 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 392 KB Output is correct
12 Correct 1 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 348 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 360 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 456 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 392 KB Output is correct
12 Correct 1 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 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 0 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 472 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 48 ms 4768 KB Output is correct
2 Correct 47 ms 4444 KB Output is correct
3 Correct 50 ms 4524 KB Output is correct
4 Correct 51 ms 4428 KB Output is correct
5 Correct 38 ms 3960 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1368 KB Output is correct
2 Correct 11 ms 1368 KB Output is correct
3 Correct 11 ms 1372 KB Output is correct
4 Correct 8 ms 1112 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 9 ms 1592 KB Output is correct
7 Correct 9 ms 1368 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 2488 KB Output is correct
2 Correct 21 ms 2612 KB Output is correct
3 Correct 41 ms 4432 KB Output is correct
4 Correct 36 ms 3928 KB Output is correct
5 Correct 17 ms 2136 KB Output is correct
6 Correct 28 ms 3676 KB Output is correct
7 Correct 31 ms 4432 KB Output is correct
8 Correct 17 ms 2392 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 360 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 456 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 392 KB Output is correct
12 Correct 1 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 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 0 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 472 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 48 ms 4768 KB Output is correct
28 Correct 47 ms 4444 KB Output is correct
29 Correct 50 ms 4524 KB Output is correct
30 Correct 51 ms 4428 KB Output is correct
31 Correct 38 ms 3960 KB Output is correct
32 Correct 11 ms 1368 KB Output is correct
33 Correct 11 ms 1368 KB Output is correct
34 Correct 11 ms 1372 KB Output is correct
35 Correct 8 ms 1112 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 9 ms 1592 KB Output is correct
38 Correct 9 ms 1368 KB Output is correct
39 Correct 20 ms 2488 KB Output is correct
40 Correct 21 ms 2612 KB Output is correct
41 Correct 41 ms 4432 KB Output is correct
42 Correct 36 ms 3928 KB Output is correct
43 Correct 17 ms 2136 KB Output is correct
44 Correct 28 ms 3676 KB Output is correct
45 Correct 31 ms 4432 KB Output is correct
46 Correct 17 ms 2392 KB Output is correct
47 Correct 23 ms 2392 KB Output is correct
48 Correct 22 ms 2392 KB Output is correct
49 Correct 47 ms 4436 KB Output is correct
50 Correct 37 ms 3924 KB Output is correct
51 Correct 29 ms 3072 KB Output is correct
52 Correct 36 ms 4064 KB Output is correct
53 Correct 29 ms 3932 KB Output is correct
54 Correct 32 ms 4432 KB Output is correct
55 Correct 38 ms 4444 KB Output is correct