#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define fr first
#define sc second
int arr[200001];
int n, x;
vector <int> sup;
int dp[200001];
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(NULL);
cin>>n>>x;
for (int i=0; i<n; i++)
{
cin>>arr[i];
}
for (int i=0; i<n; i++)
{
auto it = lower_bound(sup.begin(), sup.end(), arr[i]);
if (it == sup.end())
{
sup.pb(arr[i]);
dp[i] = sup.size();
continue;
}
int pos = it - sup.begin();
dp[i] = pos + 1;
sup[pos] = arr[i];
}
sup.clear();
int mx = 0;
for (int i=n-1; i>=0; i--)
{
auto it = lower_bound(sup.begin(), sup.end(), -(arr[i]-x));
int val = (it-sup.begin());
val += dp[i];
mx = max(val, mx);
it = lower_bound(sup.begin(), sup.end(), -(arr[i]));
if (it == sup.end())
{
sup.pb(-arr[i]);
continue;
}
int pos = it - sup.begin();
sup[pos] = -arr[i];
}
cout<<mx;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 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 |
1 ms |
328 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 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 |
1 ms |
328 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
0 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 |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
336 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
336 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 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 |
1 ms |
328 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
0 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 |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
336 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
336 KB |
Output is correct |
19 |
Correct |
1 ms |
336 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 |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
336 KB |
Output is correct |
24 |
Correct |
1 ms |
336 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
50 ms |
3764 KB |
Output is correct |
2 |
Correct |
53 ms |
3812 KB |
Output is correct |
3 |
Correct |
50 ms |
3788 KB |
Output is correct |
4 |
Correct |
51 ms |
3800 KB |
Output is correct |
5 |
Correct |
26 ms |
3488 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
11 ms |
1168 KB |
Output is correct |
2 |
Correct |
11 ms |
1108 KB |
Output is correct |
3 |
Correct |
12 ms |
1108 KB |
Output is correct |
4 |
Correct |
7 ms |
1208 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
8 ms |
1140 KB |
Output is correct |
7 |
Correct |
11 ms |
1108 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
21 ms |
2024 KB |
Output is correct |
2 |
Correct |
21 ms |
2000 KB |
Output is correct |
3 |
Correct |
41 ms |
3684 KB |
Output is correct |
4 |
Correct |
28 ms |
3544 KB |
Output is correct |
5 |
Correct |
15 ms |
2032 KB |
Output is correct |
6 |
Correct |
22 ms |
3404 KB |
Output is correct |
7 |
Correct |
30 ms |
4104 KB |
Output is correct |
8 |
Correct |
19 ms |
2020 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 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 |
1 ms |
328 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
0 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 |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
336 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
336 KB |
Output is correct |
19 |
Correct |
1 ms |
336 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 |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
336 KB |
Output is correct |
24 |
Correct |
1 ms |
336 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
50 ms |
3764 KB |
Output is correct |
28 |
Correct |
53 ms |
3812 KB |
Output is correct |
29 |
Correct |
50 ms |
3788 KB |
Output is correct |
30 |
Correct |
51 ms |
3800 KB |
Output is correct |
31 |
Correct |
26 ms |
3488 KB |
Output is correct |
32 |
Correct |
11 ms |
1168 KB |
Output is correct |
33 |
Correct |
11 ms |
1108 KB |
Output is correct |
34 |
Correct |
12 ms |
1108 KB |
Output is correct |
35 |
Correct |
7 ms |
1208 KB |
Output is correct |
36 |
Correct |
0 ms |
340 KB |
Output is correct |
37 |
Correct |
8 ms |
1140 KB |
Output is correct |
38 |
Correct |
11 ms |
1108 KB |
Output is correct |
39 |
Correct |
21 ms |
2024 KB |
Output is correct |
40 |
Correct |
21 ms |
2000 KB |
Output is correct |
41 |
Correct |
41 ms |
3684 KB |
Output is correct |
42 |
Correct |
28 ms |
3544 KB |
Output is correct |
43 |
Correct |
15 ms |
2032 KB |
Output is correct |
44 |
Correct |
22 ms |
3404 KB |
Output is correct |
45 |
Correct |
30 ms |
4104 KB |
Output is correct |
46 |
Correct |
19 ms |
2020 KB |
Output is correct |
47 |
Correct |
22 ms |
2020 KB |
Output is correct |
48 |
Correct |
23 ms |
1976 KB |
Output is correct |
49 |
Correct |
45 ms |
3788 KB |
Output is correct |
50 |
Correct |
30 ms |
3536 KB |
Output is correct |
51 |
Correct |
23 ms |
2900 KB |
Output is correct |
52 |
Correct |
28 ms |
3660 KB |
Output is correct |
53 |
Correct |
23 ms |
3612 KB |
Output is correct |
54 |
Correct |
30 ms |
4308 KB |
Output is correct |
55 |
Correct |
39 ms |
3712 KB |
Output is correct |