#include <bits/stdc++.h>
#define F first
#define S second
#define pb push_back
#define ll long long
#define ii pair<int,int>
#define iii pair<int,pair<int,int>>
#define iil pair<ll,ll>
#define iiil pair<ll,pair<ll,ll>>
#define oo 1e18
#define check(n) (prime[n>>6]&(1<<((n&63)>>1)))
#define set(n) prime[n>>6]|=(1<<((n&63)>>1))
using namespace std;
const int N=2e5+5;
const ll Mod=1e9+7;
const ll MOD=13141702292180207;
const int dx[]={-1,0,0,1};
const int dy[]={0,-1,1,0};
int n, a[N], st[4*N], d[N], cnt[N];
int t[N], s[N], x;
set<int> m;
vector<int> b;
void up(int id,int l,int r, int u,int val)
{
if (u>r || l>u || l>r) return;
if (l==r)
{
st[id]=val;
return;
}
int mid=(l+r)/2;
up(id*2,l,mid,u,val);
up(id*2+1,mid+1,r,u,val);
st[id]=max(st[id*2],st[id*2+1]);
}
int get(int id,int l,int r,int u,int v)
{
if (l>r || u>v || l>v || u>r) return 0;
if (u<=l && r<=v) return st[id];
int mid=(l+r)/2;
return max(get(id*2,l,mid,u,v), get(id*2+1,mid+1,r,u,v));
}
void slove()
{
cin >> n >> x;
m.insert(-500);
for (int i=1;i<=n;i++)
{
cin >> a[i];
d[i]=2e9+5;
m.insert(a[i]);
}
for (int i: m) b.pb(i);
m.clear();
for (int i=1;i<=n;i++)
{
int vt=lower_bound(d+1,d+1+n,a[i])-d;
d[vt]=a[i];
t[i]=vt;
}
for (int i=1;i<=n;i++) d[i]=2e9+5;
for (int i=n;i>=1;i--)
{
int vt=lower_bound(d+1,d+1+n,-a[i])-d;
d[vt]=-a[i];
s[i]=vt;
}
b.pb(2e9+5);
int ans=0;
for (int i=1;i<n;i++)
{
int vt=lower_bound(b.begin(),b.end(),a[i])-b.begin();
up(1,1,n,vt,t[i]);
vt=lower_bound(b.begin(),b.end(),a[i+1]+x)-b.begin();
vt--;
ans=max(ans,s[i+1]+get(1,1,n,1,vt));
}
cout << ans;
}
int main()
{
//freopen("test.inp","r",stdin);
//freopen("test.out","w",stdout);
ios_base::sync_with_stdio(0);
cout.tie(0); cin.tie(0);
int T=1;
//cin >> T;
while(T--) slove();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
1 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 |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
1 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 |
588 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
360 KB |
Output is correct |
23 |
Correct |
1 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
472 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 |
210 ms |
17676 KB |
Output is correct |
2 |
Correct |
209 ms |
17756 KB |
Output is correct |
3 |
Correct |
199 ms |
17868 KB |
Output is correct |
4 |
Correct |
197 ms |
17864 KB |
Output is correct |
5 |
Correct |
92 ms |
10912 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
42 ms |
4812 KB |
Output is correct |
2 |
Correct |
42 ms |
4724 KB |
Output is correct |
3 |
Correct |
41 ms |
4768 KB |
Output is correct |
4 |
Correct |
23 ms |
3164 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
23 ms |
3108 KB |
Output is correct |
7 |
Correct |
33 ms |
4824 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
82 ms |
9160 KB |
Output is correct |
2 |
Correct |
84 ms |
9416 KB |
Output is correct |
3 |
Correct |
179 ms |
17704 KB |
Output is correct |
4 |
Correct |
99 ms |
10956 KB |
Output is correct |
5 |
Correct |
46 ms |
8648 KB |
Output is correct |
6 |
Correct |
98 ms |
16268 KB |
Output is correct |
7 |
Correct |
92 ms |
17012 KB |
Output is correct |
8 |
Correct |
65 ms |
9220 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
1 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 |
588 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
360 KB |
Output is correct |
23 |
Correct |
1 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
472 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
210 ms |
17676 KB |
Output is correct |
28 |
Correct |
209 ms |
17756 KB |
Output is correct |
29 |
Correct |
199 ms |
17868 KB |
Output is correct |
30 |
Correct |
197 ms |
17864 KB |
Output is correct |
31 |
Correct |
92 ms |
10912 KB |
Output is correct |
32 |
Correct |
42 ms |
4812 KB |
Output is correct |
33 |
Correct |
42 ms |
4724 KB |
Output is correct |
34 |
Correct |
41 ms |
4768 KB |
Output is correct |
35 |
Correct |
23 ms |
3164 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
23 ms |
3108 KB |
Output is correct |
38 |
Correct |
33 ms |
4824 KB |
Output is correct |
39 |
Correct |
82 ms |
9160 KB |
Output is correct |
40 |
Correct |
84 ms |
9416 KB |
Output is correct |
41 |
Correct |
179 ms |
17704 KB |
Output is correct |
42 |
Correct |
99 ms |
10956 KB |
Output is correct |
43 |
Correct |
46 ms |
8648 KB |
Output is correct |
44 |
Correct |
98 ms |
16268 KB |
Output is correct |
45 |
Correct |
92 ms |
17012 KB |
Output is correct |
46 |
Correct |
65 ms |
9220 KB |
Output is correct |
47 |
Correct |
89 ms |
9160 KB |
Output is correct |
48 |
Correct |
101 ms |
9340 KB |
Output is correct |
49 |
Correct |
201 ms |
17864 KB |
Output is correct |
50 |
Correct |
99 ms |
10952 KB |
Output is correct |
51 |
Correct |
78 ms |
10044 KB |
Output is correct |
52 |
Correct |
123 ms |
17208 KB |
Output is correct |
53 |
Correct |
94 ms |
17096 KB |
Output is correct |
54 |
Correct |
100 ms |
17672 KB |
Output is correct |
55 |
Correct |
161 ms |
17648 KB |
Output is correct |