#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define Fast_IO ios::sync_with_stdio(false);
#define DEBUG fprintf(stderr,"Running on Line %d in Function %s\n",__LINE__,__FUNCTION__)
//mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
#define fir first
#define sec second
#define mod 998244353
#define ll long long
#define inf ((int)2e9)
#define INF 0x3f3f3f3f3f3f3f3f
inline int read()
{
char ch=getchar(); int nega=1; while(!isdigit(ch)) {if(ch=='-') nega=-1; ch=getchar();}
int ans=0; while(isdigit(ch)) {ans=ans*10+ch-48;ch=getchar();}
if(nega==-1) return -ans;
return ans;
}
typedef pair<int,int> pii;
void print(vector<int> x){for(int i=0;i<(int)x.size();i++) printf("%d%c",x[i]," \n"[i==(int)x.size()-1]);}
int max(int x,int y,int z) {return max(max(x,y),z);}
#define N 200005
struct SMT
{
struct Node
{
int ls,rs,val;
};
Node t[N*32];
int cnt=1;
void update(int &u,int l,int r,int L,int R,int v)
{
if(L>R) return ;
if(!u) u=++cnt;
if(L<=l&&r<=R) {t[u].val=max(t[u].val,v); return ;}
int mid=((ll)l+r)/2;
if(mid>=L) update(t[u].ls,l,mid,L,R,v);
if(mid<R) update(t[u].rs,mid+1,r,L,R,v);
}
int query(int u,int l,int r,int pos)
{
if(!u) return 0;
int ans=t[u].val,mid=((ll)l+r)/2;
if(pos<=mid) ans=max(ans,query(t[u].ls,l,mid,pos));
else ans=max(ans,query(t[u].rs,mid+1,r,pos));
return ans;
}
void clear() {memset(t,0,sizeof(t)),cnt=1;}
}smt;
int a[N],f[N],n,d,rt=1;
signed main()
{
cin>>n>>d;
for(int i=1;i<=n;i++) a[i]=read();
for(int i=1;i<=n;i++)
{
f[i]=smt.query(1,1,inf,a[i])+1;
smt.update(rt,1,inf,a[i]+1,inf,f[i]);
}
// for(int i=1;i<=n;i++) printf("%d%c",f[i]," \n"[i==n]);
smt.clear(); int ans=0;
for(int i=n;i>=1;i--)
{
int res=smt.query(1,1,inf,a[i]+d);
smt.update(rt,1,inf,1,a[i]+d-1,res+1);
// printf("%d : %d %d\n",i,f[i-1],smt.query(rt,1,inf,a[i-1]+1));
ans=max(ans,f[i-1]+smt.query(rt,1,inf,a[i-1]));
}
cout<<ans<<endl;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
34 ms |
75340 KB |
Output is correct |
2 |
Correct |
32 ms |
75400 KB |
Output is correct |
3 |
Correct |
34 ms |
75352 KB |
Output is correct |
4 |
Correct |
33 ms |
75312 KB |
Output is correct |
5 |
Correct |
33 ms |
75364 KB |
Output is correct |
6 |
Correct |
34 ms |
75380 KB |
Output is correct |
7 |
Correct |
33 ms |
75332 KB |
Output is correct |
8 |
Correct |
33 ms |
75432 KB |
Output is correct |
9 |
Correct |
33 ms |
75424 KB |
Output is correct |
10 |
Correct |
34 ms |
75400 KB |
Output is correct |
11 |
Correct |
33 ms |
75432 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
34 ms |
75340 KB |
Output is correct |
2 |
Correct |
32 ms |
75400 KB |
Output is correct |
3 |
Correct |
34 ms |
75352 KB |
Output is correct |
4 |
Correct |
33 ms |
75312 KB |
Output is correct |
5 |
Correct |
33 ms |
75364 KB |
Output is correct |
6 |
Correct |
34 ms |
75380 KB |
Output is correct |
7 |
Correct |
33 ms |
75332 KB |
Output is correct |
8 |
Correct |
33 ms |
75432 KB |
Output is correct |
9 |
Correct |
33 ms |
75424 KB |
Output is correct |
10 |
Correct |
34 ms |
75400 KB |
Output is correct |
11 |
Correct |
33 ms |
75432 KB |
Output is correct |
12 |
Correct |
31 ms |
75344 KB |
Output is correct |
13 |
Correct |
37 ms |
75352 KB |
Output is correct |
14 |
Correct |
34 ms |
75328 KB |
Output is correct |
15 |
Correct |
33 ms |
75320 KB |
Output is correct |
16 |
Correct |
34 ms |
75332 KB |
Output is correct |
17 |
Correct |
38 ms |
75332 KB |
Output is correct |
18 |
Correct |
35 ms |
75316 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
34 ms |
75340 KB |
Output is correct |
2 |
Correct |
32 ms |
75400 KB |
Output is correct |
3 |
Correct |
34 ms |
75352 KB |
Output is correct |
4 |
Correct |
33 ms |
75312 KB |
Output is correct |
5 |
Correct |
33 ms |
75364 KB |
Output is correct |
6 |
Correct |
34 ms |
75380 KB |
Output is correct |
7 |
Correct |
33 ms |
75332 KB |
Output is correct |
8 |
Correct |
33 ms |
75432 KB |
Output is correct |
9 |
Correct |
33 ms |
75424 KB |
Output is correct |
10 |
Correct |
34 ms |
75400 KB |
Output is correct |
11 |
Correct |
33 ms |
75432 KB |
Output is correct |
12 |
Correct |
31 ms |
75344 KB |
Output is correct |
13 |
Correct |
37 ms |
75352 KB |
Output is correct |
14 |
Correct |
34 ms |
75328 KB |
Output is correct |
15 |
Correct |
33 ms |
75320 KB |
Output is correct |
16 |
Correct |
34 ms |
75332 KB |
Output is correct |
17 |
Correct |
38 ms |
75332 KB |
Output is correct |
18 |
Correct |
35 ms |
75316 KB |
Output is correct |
19 |
Correct |
35 ms |
75368 KB |
Output is correct |
20 |
Correct |
34 ms |
75416 KB |
Output is correct |
21 |
Correct |
34 ms |
75328 KB |
Output is correct |
22 |
Correct |
35 ms |
75340 KB |
Output is correct |
23 |
Correct |
34 ms |
75352 KB |
Output is correct |
24 |
Correct |
34 ms |
75356 KB |
Output is correct |
25 |
Correct |
34 ms |
75340 KB |
Output is correct |
26 |
Correct |
35 ms |
75428 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
396 ms |
76984 KB |
Output is correct |
2 |
Correct |
420 ms |
76932 KB |
Output is correct |
3 |
Correct |
392 ms |
76984 KB |
Output is correct |
4 |
Correct |
399 ms |
77000 KB |
Output is correct |
5 |
Correct |
262 ms |
76996 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
112 ms |
75756 KB |
Output is correct |
2 |
Correct |
114 ms |
75716 KB |
Output is correct |
3 |
Correct |
149 ms |
75840 KB |
Output is correct |
4 |
Correct |
94 ms |
75840 KB |
Output is correct |
5 |
Correct |
34 ms |
75324 KB |
Output is correct |
6 |
Correct |
89 ms |
75808 KB |
Output is correct |
7 |
Correct |
95 ms |
75816 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
188 ms |
76320 KB |
Output is correct |
2 |
Correct |
191 ms |
77172 KB |
Output is correct |
3 |
Correct |
379 ms |
78916 KB |
Output is correct |
4 |
Correct |
228 ms |
78200 KB |
Output is correct |
5 |
Correct |
132 ms |
76776 KB |
Output is correct |
6 |
Correct |
226 ms |
78104 KB |
Output is correct |
7 |
Correct |
203 ms |
78720 KB |
Output is correct |
8 |
Correct |
186 ms |
77108 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
34 ms |
75340 KB |
Output is correct |
2 |
Correct |
32 ms |
75400 KB |
Output is correct |
3 |
Correct |
34 ms |
75352 KB |
Output is correct |
4 |
Correct |
33 ms |
75312 KB |
Output is correct |
5 |
Correct |
33 ms |
75364 KB |
Output is correct |
6 |
Correct |
34 ms |
75380 KB |
Output is correct |
7 |
Correct |
33 ms |
75332 KB |
Output is correct |
8 |
Correct |
33 ms |
75432 KB |
Output is correct |
9 |
Correct |
33 ms |
75424 KB |
Output is correct |
10 |
Correct |
34 ms |
75400 KB |
Output is correct |
11 |
Correct |
33 ms |
75432 KB |
Output is correct |
12 |
Correct |
31 ms |
75344 KB |
Output is correct |
13 |
Correct |
37 ms |
75352 KB |
Output is correct |
14 |
Correct |
34 ms |
75328 KB |
Output is correct |
15 |
Correct |
33 ms |
75320 KB |
Output is correct |
16 |
Correct |
34 ms |
75332 KB |
Output is correct |
17 |
Correct |
38 ms |
75332 KB |
Output is correct |
18 |
Correct |
35 ms |
75316 KB |
Output is correct |
19 |
Correct |
35 ms |
75368 KB |
Output is correct |
20 |
Correct |
34 ms |
75416 KB |
Output is correct |
21 |
Correct |
34 ms |
75328 KB |
Output is correct |
22 |
Correct |
35 ms |
75340 KB |
Output is correct |
23 |
Correct |
34 ms |
75352 KB |
Output is correct |
24 |
Correct |
34 ms |
75356 KB |
Output is correct |
25 |
Correct |
34 ms |
75340 KB |
Output is correct |
26 |
Correct |
35 ms |
75428 KB |
Output is correct |
27 |
Correct |
396 ms |
76984 KB |
Output is correct |
28 |
Correct |
420 ms |
76932 KB |
Output is correct |
29 |
Correct |
392 ms |
76984 KB |
Output is correct |
30 |
Correct |
399 ms |
77000 KB |
Output is correct |
31 |
Correct |
262 ms |
76996 KB |
Output is correct |
32 |
Correct |
112 ms |
75756 KB |
Output is correct |
33 |
Correct |
114 ms |
75716 KB |
Output is correct |
34 |
Correct |
149 ms |
75840 KB |
Output is correct |
35 |
Correct |
94 ms |
75840 KB |
Output is correct |
36 |
Correct |
34 ms |
75324 KB |
Output is correct |
37 |
Correct |
89 ms |
75808 KB |
Output is correct |
38 |
Correct |
95 ms |
75816 KB |
Output is correct |
39 |
Correct |
188 ms |
76320 KB |
Output is correct |
40 |
Correct |
191 ms |
77172 KB |
Output is correct |
41 |
Correct |
379 ms |
78916 KB |
Output is correct |
42 |
Correct |
228 ms |
78200 KB |
Output is correct |
43 |
Correct |
132 ms |
76776 KB |
Output is correct |
44 |
Correct |
226 ms |
78104 KB |
Output is correct |
45 |
Correct |
203 ms |
78720 KB |
Output is correct |
46 |
Correct |
186 ms |
77108 KB |
Output is correct |
47 |
Correct |
193 ms |
77184 KB |
Output is correct |
48 |
Correct |
232 ms |
77176 KB |
Output is correct |
49 |
Correct |
417 ms |
78948 KB |
Output is correct |
50 |
Correct |
257 ms |
78188 KB |
Output is correct |
51 |
Correct |
194 ms |
77360 KB |
Output is correct |
52 |
Correct |
255 ms |
78224 KB |
Output is correct |
53 |
Correct |
225 ms |
78296 KB |
Output is correct |
54 |
Correct |
217 ms |
78924 KB |
Output is correct |
55 |
Correct |
307 ms |
78952 KB |
Output is correct |