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Submission #328366

# Submission time Handle Problem Language Result Execution time Memory
328366 2020-11-16T09:56:08 Z Karen124 Global Warming (CEOI18_glo) C++14
100 / 100
 119 ms 4588 KB 
#include <bits/stdc++.h>
     
using namespace std;
     
#define ll long long int 
#define F first
#define S second
#define pb push_back
#define md ((b + e) >> 1)
#define lc (ind << 1)
#define rc (lc | 1)

const ll N = 2e5 + 10;
const ll M = 50;
const ll MOD = 1e9 + 7;
const ll INF = 1e9 + 10;
int n, X, a[N], l[N], r[N], f[N], ans;
int main() {
    cin >> n >> X;
    int len = 0;
    for (int i = 0; i < n; i++){
        cin >> a[i];
        int p = lower_bound(l, l + len, a[i]) - l;
        l[p] = a[i];
        len = max(len, p + 1);
        f[i] = p + 1;
    }
    ans = f[n - 1];
    len = 0;
    for (int i = n - 1; i >= 0; i--){
        a[i] *= -1;
        int p = upper_bound(r, r + len, a[i] - 1) - r;
        ans = max(ans, f[i] + p);
        a[i] -= X;
        p = lower_bound(r, r + len, a[i]) - r;
        r[p] = a[i];
        len = max(len, p + 1);
    }
    cout << ans << '\n';
    return 0;
}

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 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 0 ms 364 KB Output is correct
8 Correct 1 ms 512 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 0 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 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 0 ms 364 KB Output is correct
8 Correct 1 ms 512 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 0 ms 364 KB Output is correct
12 Correct 0 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 0 ms 364 KB Output is correct
18 Correct 0 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 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 0 ms 364 KB Output is correct
8 Correct 1 ms 512 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 0 ms 364 KB Output is correct
12 Correct 0 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 0 ms 364 KB Output is correct
18 Correct 0 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 492 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 117 ms 2924 KB Output is correct
2 Correct 117 ms 3052 KB Output is correct
3 Correct 116 ms 3052 KB Output is correct
4 Correct 119 ms 3052 KB Output is correct
5 Correct 75 ms 3820 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 1004 KB Output is correct
2 Correct 29 ms 1260 KB Output is correct
3 Correct 28 ms 1260 KB Output is correct
4 Correct 19 ms 1260 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 18 ms 1260 KB Output is correct
7 Correct 27 ms 1260 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 1856 KB Output is correct
2 Correct 54 ms 2028 KB Output is correct
3 Correct 108 ms 3052 KB Output is correct
4 Correct 74 ms 3820 KB Output is correct
5 Correct 36 ms 2028 KB Output is correct
6 Correct 68 ms 3692 KB Output is correct
7 Correct 90 ms 3692 KB Output is correct
8 Correct 53 ms 2156 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 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 0 ms 364 KB Output is correct
8 Correct 1 ms 512 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 0 ms 364 KB Output is correct
12 Correct 0 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 0 ms 364 KB Output is correct
18 Correct 0 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 492 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 117 ms 2924 KB Output is correct
28 Correct 117 ms 3052 KB Output is correct
29 Correct 116 ms 3052 KB Output is correct
30 Correct 119 ms 3052 KB Output is correct
31 Correct 75 ms 3820 KB Output is correct
32 Correct 29 ms 1004 KB Output is correct
33 Correct 29 ms 1260 KB Output is correct
34 Correct 28 ms 1260 KB Output is correct
35 Correct 19 ms 1260 KB Output is correct
36 Correct 1 ms 364 KB Output is correct
37 Correct 18 ms 1260 KB Output is correct
38 Correct 27 ms 1260 KB Output is correct
39 Correct 55 ms 1856 KB Output is correct
40 Correct 54 ms 2028 KB Output is correct
41 Correct 108 ms 3052 KB Output is correct
42 Correct 74 ms 3820 KB Output is correct
43 Correct 36 ms 2028 KB Output is correct
44 Correct 68 ms 3692 KB Output is correct
45 Correct 90 ms 3692 KB Output is correct
46 Correct 53 ms 2156 KB Output is correct
47 Correct 57 ms 2156 KB Output is correct
48 Correct 60 ms 2156 KB Output is correct
49 Correct 117 ms 3820 KB Output is correct
50 Correct 76 ms 3820 KB Output is correct
51 Correct 57 ms 3308 KB Output is correct
52 Correct 82 ms 4076 KB Output is correct
53 Correct 72 ms 3948 KB Output is correct
54 Correct 96 ms 4588 KB Output is correct
55 Correct 106 ms 3820 KB Output is correct