#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define fr first
#define sc second
#define ll long long
#define int long long
const int N=1e5+5;
void solve(){
int n,x;cin>>n>>x;
vector<int> a(n),pref(n+1),suf(n+1);
for(int i=0;i<n;i++)
cin>>a[i];
vector<int> lis(n,1e10),lds(n,1e10);
for(int i=n-1;i>=0;i--){
int it=lower_bound(all(lds),-a[i])-lds.begin();
if(lds[it]>-a[i])
lds[it]=-a[i];
suf[i]=it+1;
}
int ans=0;
for(int i=0;i<n;i++){
int It=lower_bound(all(lis),a[i]+x)-lis.begin();
ans=max(ans,It+suf[i]);
int it=lower_bound(all(lis),a[i])-lis.begin();
if(lis[it]>a[i])
lis[it]=a[i];
pref[i]=it+1;
}
cout<<ans<<endl;
}
main(){
int T=1;
//cin>>T;
while(T--){
solve();
}
}
/*
12 2
2 3 3 8 1 5 6 7 8 3 5 4
2 1
2 7
3 4
4 7
7 6
5 6
6 8
6 9
7 10
10 11
10 12
*/
Compilation message
glo.cpp:37:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
37 | main(){
| ^~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
600 KB |
Output is correct |
3 |
Correct |
1 ms |
500 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 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 |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
600 KB |
Output is correct |
3 |
Correct |
1 ms |
500 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 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 |
0 ms |
348 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 |
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 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
600 KB |
Output is correct |
3 |
Correct |
1 ms |
500 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 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 |
0 ms |
348 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 |
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 |
1 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
456 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 |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
87 ms |
8016 KB |
Output is correct |
2 |
Correct |
87 ms |
8016 KB |
Output is correct |
3 |
Correct |
95 ms |
8252 KB |
Output is correct |
4 |
Correct |
87 ms |
8192 KB |
Output is correct |
5 |
Correct |
62 ms |
8212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
21 ms |
2396 KB |
Output is correct |
2 |
Correct |
26 ms |
2396 KB |
Output is correct |
3 |
Correct |
23 ms |
2396 KB |
Output is correct |
4 |
Correct |
17 ms |
2384 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
16 ms |
2648 KB |
Output is correct |
7 |
Correct |
20 ms |
2904 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
43 ms |
4176 KB |
Output is correct |
2 |
Correct |
41 ms |
4956 KB |
Output is correct |
3 |
Correct |
86 ms |
9528 KB |
Output is correct |
4 |
Correct |
68 ms |
8976 KB |
Output is correct |
5 |
Correct |
36 ms |
4868 KB |
Output is correct |
6 |
Correct |
60 ms |
8532 KB |
Output is correct |
7 |
Correct |
74 ms |
9092 KB |
Output is correct |
8 |
Correct |
39 ms |
5108 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
600 KB |
Output is correct |
3 |
Correct |
1 ms |
500 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 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 |
0 ms |
348 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 |
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 |
1 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
456 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 |
348 KB |
Output is correct |
27 |
Correct |
87 ms |
8016 KB |
Output is correct |
28 |
Correct |
87 ms |
8016 KB |
Output is correct |
29 |
Correct |
95 ms |
8252 KB |
Output is correct |
30 |
Correct |
87 ms |
8192 KB |
Output is correct |
31 |
Correct |
62 ms |
8212 KB |
Output is correct |
32 |
Correct |
21 ms |
2396 KB |
Output is correct |
33 |
Correct |
26 ms |
2396 KB |
Output is correct |
34 |
Correct |
23 ms |
2396 KB |
Output is correct |
35 |
Correct |
17 ms |
2384 KB |
Output is correct |
36 |
Correct |
0 ms |
344 KB |
Output is correct |
37 |
Correct |
16 ms |
2648 KB |
Output is correct |
38 |
Correct |
20 ms |
2904 KB |
Output is correct |
39 |
Correct |
43 ms |
4176 KB |
Output is correct |
40 |
Correct |
41 ms |
4956 KB |
Output is correct |
41 |
Correct |
86 ms |
9528 KB |
Output is correct |
42 |
Correct |
68 ms |
8976 KB |
Output is correct |
43 |
Correct |
36 ms |
4868 KB |
Output is correct |
44 |
Correct |
60 ms |
8532 KB |
Output is correct |
45 |
Correct |
74 ms |
9092 KB |
Output is correct |
46 |
Correct |
39 ms |
5108 KB |
Output is correct |
47 |
Correct |
43 ms |
4948 KB |
Output is correct |
48 |
Correct |
44 ms |
4996 KB |
Output is correct |
49 |
Correct |
97 ms |
9476 KB |
Output is correct |
50 |
Correct |
65 ms |
9208 KB |
Output is correct |
51 |
Correct |
52 ms |
6988 KB |
Output is correct |
52 |
Correct |
67 ms |
8788 KB |
Output is correct |
53 |
Correct |
59 ms |
8788 KB |
Output is correct |
54 |
Correct |
78 ms |
9404 KB |
Output is correct |
55 |
Correct |
80 ms |
9296 KB |
Output is correct |