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Submission #442995

# Submission time Handle Problem Language Result Execution time Memory
442995 2021-07-09T13:05:11 Z Focutai Global Warming (CEOI18_glo) C++17
100 / 100
 420 ms 78952 KB 
#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;
}

Subtask #1
5.0 / 5.0

# 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

Subtask #2
10.0 / 10.0

# 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
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

Subtask #3
13.0 / 13.0

# 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
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

Subtask #4
10.0 / 10.0

# 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

Subtask #5
20.0 / 20.0

# 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

Subtask #6
17.0 / 17.0

# 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

Subtask #7
25.0 / 25.0

# 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
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