#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define eb emplace_back
#define ll long long
#define pll pair<ll,ll>
#define ff first
#define ss second
#define endl "\n"
const ll maxn=5e5+50;
const ll mod =998244353 ;
const ll base=3e18;
vector<ll> vt;
ll st[2][4*maxn];
ll a[maxn];
void update(ll id,ll left,ll right,ll x,ll diff,ll t )
{
if (x>right||x<left) return ;
if (right==left )
{
st[t][id]=max(st[t][id],diff);
return ;
}
ll mid=(left+right)/2;
update(id*2,left,mid, x, diff,t);
update(id*2+1, mid+1, right, x, diff,t);
st[t][id]=max(st[t][id*2],st[t][id*2+1]);
}
ll get(ll id,ll left,ll right,ll x,ll y,ll t)
{
if (x>right||y<left||x> y) return 0;
if (x<=left&&y>=right)
{
return st[t][id];
}
ll mid=(left+right)/2;
return max(get(id*2,left,mid, x, y, t ),get(id*2+1, mid+1, right, x, y, t));
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
ll n, x ;
cin>> n>> x ;
vt.pb(-1e15);
for (int i=1;i<=n;i++)
{
cin>>a[i];
vt.pb(a[i]);
vt.pb(a[i]-x);
}
sort(vt.begin(),vt.end());
vt.resize(unique(vt.begin(),vt.end())-vt.begin());
ll ans=0;
//cout <<vt.size()<<endl;
/*for (auto to:vt)
{
cout <<to<<endl;
}*/
for (int i=1;i<=n;i++)
{
ll h=lower_bound(vt.begin(),vt.end(),a[i])-vt.begin();
ll t=get(1,1,vt.size()-1,1,h-1,0)+1;
// cout <<1<<" "<<1<<" "<<vt.size()-1<<" "<<1<<" "<<h-1<<" "<<0<<endl;
ll p=get(1,1,vt.size()-1,1,h-1,1)+1;
update(1,1,vt.size()-1,h,t,0);
// cout <<1<<" "<<1<<" "<<vt.size()<<"
update(1,1,vt.size()-1,h,p,1);
ll h1=lower_bound(vt.begin(),vt.end(),a[i]-x)-vt.begin();
update(1,1,vt.size()-1,h1,t,1);
//cout <<t<<" "<<p<<" "<<h<<endl;
// cout <<h<<" "<<h-1<<endl;
ans=max(ans,t);
ans=max(ans,p);
}
//update(1,1,vt.size()-1,4,2,0);
// cout <<get(1,1,vt.size()-1,1,3,0)<<endl ;
cout <<ans<<endl;
/*10 10
1 1 1 1 1 1 2 2 2 1
*/
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
0 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 |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
0 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
0 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 |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
0 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
1 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 |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
0 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 |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
0 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
1 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 |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
19 |
Correct |
2 ms |
492 KB |
Output is correct |
20 |
Correct |
2 ms |
492 KB |
Output is correct |
21 |
Correct |
2 ms |
492 KB |
Output is correct |
22 |
Correct |
2 ms |
492 KB |
Output is correct |
23 |
Correct |
2 ms |
492 KB |
Output is correct |
24 |
Correct |
2 ms |
492 KB |
Output is correct |
25 |
Correct |
2 ms |
492 KB |
Output is correct |
26 |
Correct |
2 ms |
492 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
498 ms |
13392 KB |
Output is correct |
2 |
Correct |
496 ms |
13520 KB |
Output is correct |
3 |
Correct |
489 ms |
13396 KB |
Output is correct |
4 |
Correct |
508 ms |
13392 KB |
Output is correct |
5 |
Correct |
257 ms |
9424 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
109 ms |
5728 KB |
Output is correct |
2 |
Correct |
120 ms |
5764 KB |
Output is correct |
3 |
Correct |
110 ms |
5736 KB |
Output is correct |
4 |
Correct |
67 ms |
3680 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
69 ms |
3832 KB |
Output is correct |
7 |
Correct |
89 ms |
5984 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
285 ms |
9048 KB |
Output is correct |
2 |
Correct |
258 ms |
9052 KB |
Output is correct |
3 |
Correct |
605 ms |
17764 KB |
Output is correct |
4 |
Correct |
286 ms |
12624 KB |
Output is correct |
5 |
Correct |
162 ms |
9688 KB |
Output is correct |
6 |
Correct |
302 ms |
18640 KB |
Output is correct |
7 |
Correct |
307 ms |
19152 KB |
Output is correct |
8 |
Correct |
196 ms |
10200 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
0 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 |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
0 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
1 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 |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
19 |
Correct |
2 ms |
492 KB |
Output is correct |
20 |
Correct |
2 ms |
492 KB |
Output is correct |
21 |
Correct |
2 ms |
492 KB |
Output is correct |
22 |
Correct |
2 ms |
492 KB |
Output is correct |
23 |
Correct |
2 ms |
492 KB |
Output is correct |
24 |
Correct |
2 ms |
492 KB |
Output is correct |
25 |
Correct |
2 ms |
492 KB |
Output is correct |
26 |
Correct |
2 ms |
492 KB |
Output is correct |
27 |
Correct |
498 ms |
13392 KB |
Output is correct |
28 |
Correct |
496 ms |
13520 KB |
Output is correct |
29 |
Correct |
489 ms |
13396 KB |
Output is correct |
30 |
Correct |
508 ms |
13392 KB |
Output is correct |
31 |
Correct |
257 ms |
9424 KB |
Output is correct |
32 |
Correct |
109 ms |
5728 KB |
Output is correct |
33 |
Correct |
120 ms |
5764 KB |
Output is correct |
34 |
Correct |
110 ms |
5736 KB |
Output is correct |
35 |
Correct |
67 ms |
3680 KB |
Output is correct |
36 |
Correct |
1 ms |
364 KB |
Output is correct |
37 |
Correct |
69 ms |
3832 KB |
Output is correct |
38 |
Correct |
89 ms |
5984 KB |
Output is correct |
39 |
Correct |
285 ms |
9048 KB |
Output is correct |
40 |
Correct |
258 ms |
9052 KB |
Output is correct |
41 |
Correct |
605 ms |
17764 KB |
Output is correct |
42 |
Correct |
286 ms |
12624 KB |
Output is correct |
43 |
Correct |
162 ms |
9688 KB |
Output is correct |
44 |
Correct |
302 ms |
18640 KB |
Output is correct |
45 |
Correct |
307 ms |
19152 KB |
Output is correct |
46 |
Correct |
196 ms |
10200 KB |
Output is correct |
47 |
Correct |
255 ms |
11992 KB |
Output is correct |
48 |
Correct |
254 ms |
11992 KB |
Output is correct |
49 |
Correct |
580 ms |
23760 KB |
Output is correct |
50 |
Correct |
291 ms |
14544 KB |
Output is correct |
51 |
Correct |
234 ms |
11856 KB |
Output is correct |
52 |
Correct |
317 ms |
14888 KB |
Output is correct |
53 |
Correct |
319 ms |
19024 KB |
Output is correct |
54 |
Correct |
329 ms |
19684 KB |
Output is correct |
55 |
Correct |
446 ms |
23632 KB |
Output is correct |