답안 #72890 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
72890	2018-08-27T07:43:32 Z	zscoder	Global Warming (CEOI18_glo)	C++17	100 / 100	181 ms	6372 KB

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
 
using namespace std;
using namespace __gnu_pbds;
 
#define fi first
#define se second
#define mp make_pair
#define pb push_back
 
typedef long long ll;
typedef pair<int,int> ii;
typedef vector<int> vi;
typedef long double ld; 
typedef tree<ii, null_type, less<ii>, rb_tree_tag, tree_order_statistics_node_update> pbds;

int a[222222];
int P[222222];
int S[222222];

struct Fenwick
{
	vi fen;
	int n;
	void init(int _n)
	{
		n=_n; fen.clear();
		fen.resize(n+1,0);
	}
	void update(int pos, int v)
	{
		pos++;
		for(;pos<=n;pos+=(pos&(-pos)))
		{
			fen[pos]=max(fen[pos],v);
		}
	}
	int get(int pos)
	{
		if(pos<0) return 0;
		pos++;
		int ans=0;
		for(;pos;pos-=(pos&(-pos)))
		{
			ans=max(ans,fen[pos]);
		}
		return ans;
	}
};

vi coord;
int id[222222];

int main()
{
	ios_base::sync_with_stdio(0); cin.tie(0);
	int n, x; cin>>n>>x;
	for(int i=0;i<n;i++)
	{
		cin>>a[i]; coord.pb(a[i]);
	}
	sort(coord.begin(),coord.end()); coord.erase(unique(coord.begin(),coord.end()),coord.end());
	for(int i=0;i<n;i++)
	{
		id[i] = lower_bound(coord.begin(),coord.end(),a[i])-coord.begin();
	}
	Fenwick fen; fen.init(n+1);
	for(int i=0;i<n;i++)
	{
		P[i] = fen.get(id[i]-1)+1;
		fen.update(id[i],P[i]);
	}
	fen.init(n+1);
	for(int i=n-1;i>=0;i--)
	{
		S[i] = fen.get(n-id[i]-1)+1;
		fen.update(n-id[i],S[i]);
	}
	int ans=P[n-1];
	Fenwick fen2; fen2.init(n+1);
	for(int j=0;j<n;j++)
	{
		int lb = lower_bound(coord.begin(),coord.end(),a[j]+x)-coord.begin();
		ans=max(ans, S[j]+fen2.get(lb-1));
		fen2.update(id[j],P[j]);
	}
	cout<<ans<<'\n';
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	2 ms	420 KB	Output is correct
4	Correct	2 ms	420 KB	Output is correct
5	Correct	2 ms	420 KB	Output is correct
6	Correct	2 ms	496 KB	Output is correct
7	Correct	2 ms	572 KB	Output is correct
8	Correct	3 ms	572 KB	Output is correct
9	Correct	2 ms	572 KB	Output is correct
10	Correct	3 ms	572 KB	Output is correct
11	Correct	2 ms	616 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	2 ms	420 KB	Output is correct
4	Correct	2 ms	420 KB	Output is correct
5	Correct	2 ms	420 KB	Output is correct
6	Correct	2 ms	496 KB	Output is correct
7	Correct	2 ms	572 KB	Output is correct
8	Correct	3 ms	572 KB	Output is correct
9	Correct	2 ms	572 KB	Output is correct
10	Correct	3 ms	572 KB	Output is correct
11	Correct	2 ms	616 KB	Output is correct
12	Correct	3 ms	616 KB	Output is correct
13	Correct	2 ms	616 KB	Output is correct
14	Correct	2 ms	616 KB	Output is correct
15	Correct	3 ms	616 KB	Output is correct
16	Correct	3 ms	744 KB	Output is correct
17	Correct	3 ms	744 KB	Output is correct
18	Correct	3 ms	744 KB	Output is correct

Subtask #3
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	2 ms	420 KB	Output is correct
4	Correct	2 ms	420 KB	Output is correct
5	Correct	2 ms	420 KB	Output is correct
6	Correct	2 ms	496 KB	Output is correct
7	Correct	2 ms	572 KB	Output is correct
8	Correct	3 ms	572 KB	Output is correct
9	Correct	2 ms	572 KB	Output is correct
10	Correct	3 ms	572 KB	Output is correct
11	Correct	2 ms	616 KB	Output is correct
12	Correct	3 ms	616 KB	Output is correct
13	Correct	2 ms	616 KB	Output is correct
14	Correct	2 ms	616 KB	Output is correct
15	Correct	3 ms	616 KB	Output is correct
16	Correct	3 ms	744 KB	Output is correct
17	Correct	3 ms	744 KB	Output is correct
18	Correct	3 ms	744 KB	Output is correct
19	Correct	3 ms	744 KB	Output is correct
20	Correct	2 ms	744 KB	Output is correct
21	Correct	3 ms	744 KB	Output is correct
22	Correct	3 ms	744 KB	Output is correct
23	Correct	3 ms	744 KB	Output is correct
24	Correct	2 ms	744 KB	Output is correct
25	Correct	2 ms	744 KB	Output is correct
26	Correct	3 ms	744 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	165 ms	6260 KB	Output is correct
2	Correct	157 ms	6288 KB	Output is correct
3	Correct	181 ms	6288 KB	Output is correct
4	Correct	165 ms	6288 KB	Output is correct
5	Correct	124 ms	6288 KB	Output is correct

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	34 ms	6288 KB	Output is correct
2	Correct	36 ms	6288 KB	Output is correct
3	Correct	33 ms	6288 KB	Output is correct
4	Correct	22 ms	6288 KB	Output is correct
5	Correct	2 ms	6288 KB	Output is correct
6	Correct	20 ms	6288 KB	Output is correct
7	Correct	31 ms	6288 KB	Output is correct

Subtask #6
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	58 ms	6288 KB	Output is correct
2	Correct	61 ms	6288 KB	Output is correct
3	Correct	130 ms	6288 KB	Output is correct
4	Correct	76 ms	6288 KB	Output is correct
5	Correct	40 ms	6288 KB	Output is correct
6	Correct	71 ms	6288 KB	Output is correct
7	Correct	81 ms	6288 KB	Output is correct
8	Correct	53 ms	6288 KB	Output is correct

Subtask #7
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	2 ms	420 KB	Output is correct
4	Correct	2 ms	420 KB	Output is correct
5	Correct	2 ms	420 KB	Output is correct
6	Correct	2 ms	496 KB	Output is correct
7	Correct	2 ms	572 KB	Output is correct
8	Correct	3 ms	572 KB	Output is correct
9	Correct	2 ms	572 KB	Output is correct
10	Correct	3 ms	572 KB	Output is correct
11	Correct	2 ms	616 KB	Output is correct
12	Correct	3 ms	616 KB	Output is correct
13	Correct	2 ms	616 KB	Output is correct
14	Correct	2 ms	616 KB	Output is correct
15	Correct	3 ms	616 KB	Output is correct
16	Correct	3 ms	744 KB	Output is correct
17	Correct	3 ms	744 KB	Output is correct
18	Correct	3 ms	744 KB	Output is correct
19	Correct	3 ms	744 KB	Output is correct
20	Correct	2 ms	744 KB	Output is correct
21	Correct	3 ms	744 KB	Output is correct
22	Correct	3 ms	744 KB	Output is correct
23	Correct	3 ms	744 KB	Output is correct
24	Correct	2 ms	744 KB	Output is correct
25	Correct	2 ms	744 KB	Output is correct
26	Correct	3 ms	744 KB	Output is correct
27	Correct	165 ms	6260 KB	Output is correct
28	Correct	157 ms	6288 KB	Output is correct
29	Correct	181 ms	6288 KB	Output is correct
30	Correct	165 ms	6288 KB	Output is correct
31	Correct	124 ms	6288 KB	Output is correct
32	Correct	34 ms	6288 KB	Output is correct
33	Correct	36 ms	6288 KB	Output is correct
34	Correct	33 ms	6288 KB	Output is correct
35	Correct	22 ms	6288 KB	Output is correct
36	Correct	2 ms	6288 KB	Output is correct
37	Correct	20 ms	6288 KB	Output is correct
38	Correct	31 ms	6288 KB	Output is correct
39	Correct	58 ms	6288 KB	Output is correct
40	Correct	61 ms	6288 KB	Output is correct
41	Correct	130 ms	6288 KB	Output is correct
42	Correct	76 ms	6288 KB	Output is correct
43	Correct	40 ms	6288 KB	Output is correct
44	Correct	71 ms	6288 KB	Output is correct
45	Correct	81 ms	6288 KB	Output is correct
46	Correct	53 ms	6288 KB	Output is correct
47	Correct	75 ms	6288 KB	Output is correct
48	Correct	84 ms	6288 KB	Output is correct
49	Correct	161 ms	6288 KB	Output is correct
50	Correct	81 ms	6288 KB	Output is correct
51	Correct	67 ms	6288 KB	Output is correct
52	Correct	99 ms	6312 KB	Output is correct
53	Correct	79 ms	6312 KB	Output is correct
54	Correct	95 ms	6312 KB	Output is correct
55	Correct	151 ms	6372 KB	Output is correct

답안 #72890

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 10.0 / 10.0

Subtask #3 13.0 / 13.0

Subtask #4 10.0 / 10.0

Subtask #5 20.0 / 20.0

Subtask #6 17.0 / 17.0

Subtask #7 25.0 / 25.0

Subtask #1
5.0 / 5.0

Subtask #2
10.0 / 10.0

Subtask #3
13.0 / 13.0

Subtask #4
10.0 / 10.0

Subtask #5
20.0 / 20.0

Subtask #6
17.0 / 17.0

Subtask #7
25.0 / 25.0