#include <bits/stdc++.h>
#define int long long
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
using namespace std;
signed main(){
ios_base::sync_with_stdio();
cin.tie(0);cout.tie(0);
int n,x;
cin>>n>>x;
vector <int> a(n);
for(int i=0;i<n;i++)cin>>a[i];
vector <int> v(n+1,1e18),v2(n+1,1e18);
vector <int> l(n+1),r(n+1);
v[0]=-1e18;
v2[0]=-1e18;
for(int i=0;i<n;i++){
auto pos=lower_bound(all(v),a[i])-v.begin();
l[i]=pos;
v[pos]=a[i];
}
for(int i=n-1;i>=0;i--){
auto pos=lower_bound(all(v2),-(a[i]-x))-v2.begin();
r[i]=pos;
pos=lower_bound(all(v2),-a[i])-v2.begin();
v2[pos]=-a[i];
}
int mx=0;
for(int i=0;i<n;i++){
mx=max(mx,l[i]+r[i]-1);
}
cout<<mx<<"\n";
}
/*
8 10
7 3 5 12 2 7 3 4
*/
# |
결과 |
실행 시간 |
메모리 |
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 |
440 KB |
Output is correct |
5 |
Correct |
0 ms |
344 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 |
344 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 |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
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 |
440 KB |
Output is correct |
5 |
Correct |
0 ms |
344 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 |
344 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 |
348 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 |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
432 KB |
Output is correct |
17 |
Correct |
0 ms |
344 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
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 |
440 KB |
Output is correct |
5 |
Correct |
0 ms |
344 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 |
344 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 |
348 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 |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
432 KB |
Output is correct |
17 |
Correct |
0 ms |
344 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
440 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
1 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 |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
436 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
87 ms |
10064 KB |
Output is correct |
2 |
Correct |
87 ms |
10068 KB |
Output is correct |
3 |
Correct |
87 ms |
10160 KB |
Output is correct |
4 |
Correct |
89 ms |
10180 KB |
Output is correct |
5 |
Correct |
65 ms |
9280 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
21 ms |
2652 KB |
Output is correct |
2 |
Correct |
21 ms |
2728 KB |
Output is correct |
3 |
Correct |
25 ms |
2652 KB |
Output is correct |
4 |
Correct |
16 ms |
2652 KB |
Output is correct |
5 |
Correct |
0 ms |
436 KB |
Output is correct |
6 |
Correct |
20 ms |
2652 KB |
Output is correct |
7 |
Correct |
19 ms |
2648 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
40 ms |
5204 KB |
Output is correct |
2 |
Correct |
39 ms |
5176 KB |
Output is correct |
3 |
Correct |
82 ms |
10068 KB |
Output is correct |
4 |
Correct |
66 ms |
9296 KB |
Output is correct |
5 |
Correct |
31 ms |
4692 KB |
Output is correct |
6 |
Correct |
61 ms |
9040 KB |
Output is correct |
7 |
Correct |
70 ms |
9716 KB |
Output is correct |
8 |
Correct |
38 ms |
5200 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
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 |
440 KB |
Output is correct |
5 |
Correct |
0 ms |
344 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 |
344 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 |
348 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 |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
432 KB |
Output is correct |
17 |
Correct |
0 ms |
344 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
440 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
1 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 |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
436 KB |
Output is correct |
27 |
Correct |
87 ms |
10064 KB |
Output is correct |
28 |
Correct |
87 ms |
10068 KB |
Output is correct |
29 |
Correct |
87 ms |
10160 KB |
Output is correct |
30 |
Correct |
89 ms |
10180 KB |
Output is correct |
31 |
Correct |
65 ms |
9280 KB |
Output is correct |
32 |
Correct |
21 ms |
2652 KB |
Output is correct |
33 |
Correct |
21 ms |
2728 KB |
Output is correct |
34 |
Correct |
25 ms |
2652 KB |
Output is correct |
35 |
Correct |
16 ms |
2652 KB |
Output is correct |
36 |
Correct |
0 ms |
436 KB |
Output is correct |
37 |
Correct |
20 ms |
2652 KB |
Output is correct |
38 |
Correct |
19 ms |
2648 KB |
Output is correct |
39 |
Correct |
40 ms |
5204 KB |
Output is correct |
40 |
Correct |
39 ms |
5176 KB |
Output is correct |
41 |
Correct |
82 ms |
10068 KB |
Output is correct |
42 |
Correct |
66 ms |
9296 KB |
Output is correct |
43 |
Correct |
31 ms |
4692 KB |
Output is correct |
44 |
Correct |
61 ms |
9040 KB |
Output is correct |
45 |
Correct |
70 ms |
9716 KB |
Output is correct |
46 |
Correct |
38 ms |
5200 KB |
Output is correct |
47 |
Correct |
43 ms |
5304 KB |
Output is correct |
48 |
Correct |
46 ms |
5312 KB |
Output is correct |
49 |
Correct |
92 ms |
10068 KB |
Output is correct |
50 |
Correct |
63 ms |
9308 KB |
Output is correct |
51 |
Correct |
50 ms |
7104 KB |
Output is correct |
52 |
Correct |
64 ms |
9300 KB |
Output is correct |
53 |
Correct |
63 ms |
9404 KB |
Output is correct |
54 |
Correct |
76 ms |
10068 KB |
Output is correct |
55 |
Correct |
79 ms |
10072 KB |
Output is correct |