oj.uz

답안 #618991

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
618991 2022-08-02T08:48:11 Z CSQ31 Team Contest (JOI22_team) C++17
73 / 100
 2000 ms 40348 KB 
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define sz(a) (int)(a.size())
#define all(a) a.begin(),a.end()
#define owo ios_base::sync_with_stdio(0);cin.tie(0);
typedef pair<int,int> pii;
typedef long long int ll;
const int MAXN = 5e5;
array<ll,3>pts1[MAXN],pts2[MAXN];
vector<array<ll,3>>a;
vector<int>crd[3];
//i have rectangle queries but i cant do it offline?
//i can but its double log on 2s
//ok try n^2 first
int sz0,sz1,sz2;
struct seg{
	vector<int>t;
	int n;
	seg(){}
	seg(int _n){
		n = _n;
		t.assign(4*n+1,-2e9);
	}
	void upd(int v,int pos,int l,int r,int val){
		if(l==r){
			t[v] = max(t[v],val);
			return;
		}
		int tm = (l+r)/2;
		if(pos<=tm)upd(2*v,pos,l,tm,val);
		else upd(2*v+1,pos,tm+1,r,val);
		t[v] = max(t[2*v],t[2*v+1]);
	}
	void upd2(int v,int pos,int l,int r,int val){
		if(l==r){
			t[v] = val;
			return;
		}
		int tm = (l+r)/2;
		if(pos<=tm)upd(2*v,pos,l,tm,val);
		else upd(2*v+1,pos,tm+1,r,val);
		t[v] = max(t[2*v],t[2*v+1]);
	}
	int query(int v,int l,int r,int tl,int tr){
		if(l>r)return -2e9;
		if(l==tl && r==tr)return t[v];
		int tm = (tl+tr)/2;
		if(r<=tm)return query(2*v,l,r,tl,tm);
		else if(l>tm)return query(2*v+1,l,r,tm+1,tr);
		else return max(query(2*v,l,tm,tl,tm),query(2*v+1,tm+1,r,tm+1,tr));
	}
};//amx;
ll ans = -1;
vector<int>pts[MAXN];
 
void solve(int l,int r){
	if(l==r){
		return;
	}
	//all same a
	int mid = (l+r)/2;
	solve(l,mid);
	solve(mid+1,r);
	vector<pii>que;
	vector<array<ll,3>>add;
	for(int i=l;i<=mid;i++){
		for(int x:pts[i]){
			if(pts1[x][0] != -2e9){
				add.pb({pts1[x][1],pts1[x][2],pts1[x][0]});
			}
			if(pts2[x][0] != -2e9){
				add.pb({pts2[x][1],pts2[x][2],pts2[x][0]});
			}
		}
	}
	for(int i=mid+1;i<=r;i++){
		for(int x:pts[i])que.push_back({a[x][1],x});
	}
	/*
	for(auto x:add){
		for(auto y:que){
			int id = y.se;
			if(y.fi  < x[0] && a[id][2] < x[1]){
				ans = max(ans,crd[0][a[id][0]] + x[2]);
				
			}
			
		}	
	}
	* */
	seg amx(sz2);
	sort(all(add),greater<array<ll,3>>());
	sort(all(que),greater<pii>());
	int ptr = -1;
	for(pii qq : que){
		while(ptr+1 < sz(add) && add[ptr+1][0] > qq.fi){ //add still has bigger b
			ptr++;
			array<ll,3>v = add[ptr];
			amx.upd(1,v[1],0,sz2-1,v[2]);
		} 
		int id = qq.se;
		if(a[id][2]+1 < sz2){
			ll res = amx.query(1,a[id][2]+1,sz2-1,0,sz2-1); //we need a bigger ccout<<"query"<<'\n';
			ans = max(ans , crd[0][a[id][0]] + res);
		}
	}
	//for(auto x:add)amx.upd2(1,x[1],0,sz2-1,-2e9);
}
int main()
{
	owo
	int n;
	cin>>n;
	a.resize(n);
	for(int i=0;i<n;i++){
		for(int j=0;j<3;j++){
			cin>>a[i][j];
			crd[j].pb(a[i][j]);
		}
	}
	sort(all(a),[&](array<ll,3>i,array<ll,3>j){return j[0] > i[0];});
	for(int j=0;j<3;j++){
		sort(all(crd[j]));
		crd[j].resize(unique(all(crd[j])) - crd[j].begin());
	}
	//cout<<"sorted"<<'\n';
	//for(int i=0;i<n;i++)cout<<a[i][0]<<" "<<a[i][1]<<" "<<a[i][2]<<'\n';
	sz0 = sz(crd[0]);
	sz1 = sz(crd[1]);
	sz2 = sz(crd[2]);
	seg bmx(sz1),cmx(sz2);
	//cout<<"points"<<'\n';
	for(int i=0;i<n;i++){
		pts1[i][0] = pts2[i][0] = -2e9;
		pts1[i][1] = a[i][1]; //i has bigger b
		pts2[i][2] = a[i][2]; //i has bigger c
		int s1 = lower_bound(all(crd[1]),a[i][1]) - crd[1].begin();
		int s2 = lower_bound(all(crd[2]),a[i][2]) - crd[2].begin();
		if(s1>0)pts1[i][2] = bmx.query(1,0,s1-1,0,sz1-1); //want the max of c among smaller bs
		if(s2>0)pts2[i][1] = cmx.query(1,0,s2-1,0,sz2-1); //want the max of b among smaller cs
		if(pts1[i][2] > a[i][2])pts1[i][0] = pts1[i][1] + pts1[i][2]; 
		if(pts2[i][1] > a[i][1])pts2[i][0] = pts2[i][1] + pts2[i][2];
		bmx.upd(1,s1,0,sz1-1,a[i][2]);
		cmx.upd(1,s2,0,sz2-1,a[i][1]);
		
		if(pts1[i][0] != -2e9){
			pts1[i][1] = lower_bound(all(crd[1]),pts1[i][1]) - crd[1].begin();
			pts1[i][2] = lower_bound(all(crd[2]),pts1[i][2]) - crd[2].begin();
		}
		if(pts2[i][0] != -2e9){
			pts2[i][1] = lower_bound(all(crd[1]),pts2[i][1]) - crd[1].begin();
			pts2[i][2] = lower_bound(all(crd[2]),pts2[i][2]) - crd[2].begin();
		}
		//this is correct
	}
	for(int i=0;i<n;i++){
		a[i][0] = lower_bound(all(crd[0]),a[i][0]) - crd[0].begin();
		a[i][1] = lower_bound(all(crd[1]),a[i][1]) - crd[1].begin();
		a[i][2] = lower_bound(all(crd[2]),a[i][2]) - crd[2].begin();
		pts[a[i][0]].pb(i);
	}
	/*
	for(int i=0;i<n;){
		int k = i;
		while(k+1<n && a[k][0] == a[k+1][0])k++;
		for(int x=i;x<=k;x++){
			for(int j=0;j<x;j++){
				if(a[x][0] == a[j][0])break;
				if(pts1[j][1] > a[x][1] && pts1[j][2] >a[x][2])ans = max(ans,crd[0][a[x][0]] + pts1[j][0]);
				if(pts2[j][1] > a[x][1] && pts2[j][2] >a[x][2])ans = max(ans,crd[0][a[x][0]] + pts2[j][0]);
			}
		}
		i = k+1;
	}*/
	//amx = seg(sz2);
	solve(0,sz0-1);
	cout<<ans;
	
	
	
}

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 11988 KB Output is correct
2 Correct 8 ms 12040 KB Output is correct
3 Correct 8 ms 11988 KB Output is correct
4 Correct 6 ms 11988 KB Output is correct
5 Correct 7 ms 11988 KB Output is correct
6 Correct 6 ms 11988 KB Output is correct
7 Correct 7 ms 11988 KB Output is correct
8 Correct 6 ms 12032 KB Output is correct
9 Correct 6 ms 11988 KB Output is correct
10 Correct 6 ms 11988 KB Output is correct
11 Correct 6 ms 11988 KB Output is correct
12 Correct 6 ms 11988 KB Output is correct
13 Correct 6 ms 11988 KB Output is correct
14 Correct 7 ms 12116 KB Output is correct
15 Correct 7 ms 12116 KB Output is correct
16 Correct 7 ms 12116 KB Output is correct
17 Correct 7 ms 12116 KB Output is correct
18 Correct 8 ms 12116 KB Output is correct
19 Correct 7 ms 12116 KB Output is correct
20 Correct 6 ms 12116 KB Output is correct
21 Correct 6 ms 12116 KB Output is correct
22 Correct 7 ms 12116 KB Output is correct
23 Correct 7 ms 11988 KB Output is correct
24 Correct 7 ms 12020 KB Output is correct
25 Correct 8 ms 12116 KB Output is correct

Subtask #2
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 11988 KB Output is correct
2 Correct 8 ms 12040 KB Output is correct
3 Correct 8 ms 11988 KB Output is correct
4 Correct 6 ms 11988 KB Output is correct
5 Correct 7 ms 11988 KB Output is correct
6 Correct 6 ms 11988 KB Output is correct
7 Correct 7 ms 11988 KB Output is correct
8 Correct 6 ms 12032 KB Output is correct
9 Correct 6 ms 11988 KB Output is correct
10 Correct 6 ms 11988 KB Output is correct
11 Correct 6 ms 11988 KB Output is correct
12 Correct 6 ms 11988 KB Output is correct
13 Correct 6 ms 11988 KB Output is correct
14 Correct 7 ms 12116 KB Output is correct
15 Correct 7 ms 12116 KB Output is correct
16 Correct 7 ms 12116 KB Output is correct
17 Correct 7 ms 12116 KB Output is correct
18 Correct 8 ms 12116 KB Output is correct
19 Correct 7 ms 12116 KB Output is correct
20 Correct 6 ms 12116 KB Output is correct
21 Correct 6 ms 12116 KB Output is correct
22 Correct 7 ms 12116 KB Output is correct
23 Correct 7 ms 11988 KB Output is correct
24 Correct 7 ms 12020 KB Output is correct
25 Correct 8 ms 12116 KB Output is correct
26 Correct 45 ms 12800 KB Output is correct
27 Correct 28 ms 12676 KB Output is correct
28 Correct 34 ms 12664 KB Output is correct
29 Correct 20 ms 12588 KB Output is correct
30 Correct 16 ms 12456 KB Output is correct
31 Correct 21 ms 12760 KB Output is correct
32 Correct 13 ms 12452 KB Output is correct
33 Correct 13 ms 12548 KB Output is correct
34 Correct 33 ms 12724 KB Output is correct
35 Correct 7 ms 12116 KB Output is correct
36 Correct 7 ms 12116 KB Output is correct
37 Correct 13 ms 12540 KB Output is correct
38 Correct 16 ms 12500 KB Output is correct
39 Correct 8 ms 12244 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 11988 KB Output is correct
2 Correct 6 ms 11988 KB Output is correct
3 Correct 7 ms 11988 KB Output is correct
4 Correct 6 ms 11988 KB Output is correct
5 Correct 6 ms 11988 KB Output is correct
6 Correct 6 ms 11988 KB Output is correct
7 Correct 8 ms 11992 KB Output is correct
8 Correct 6 ms 11988 KB Output is correct
9 Correct 6 ms 12076 KB Output is correct
10 Correct 6 ms 11988 KB Output is correct
11 Correct 115 ms 30760 KB Output is correct
12 Correct 59 ms 23040 KB Output is correct
13 Correct 50 ms 24456 KB Output is correct
14 Correct 96 ms 28852 KB Output is correct
15 Correct 67 ms 27708 KB Output is correct
16 Correct 52 ms 26824 KB Output is correct

Subtask #4
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 11988 KB Output is correct
2 Correct 6 ms 11988 KB Output is correct
3 Correct 7 ms 11988 KB Output is correct
4 Correct 6 ms 11988 KB Output is correct
5 Correct 6 ms 11988 KB Output is correct
6 Correct 6 ms 11988 KB Output is correct
7 Correct 8 ms 11992 KB Output is correct
8 Correct 6 ms 11988 KB Output is correct
9 Correct 6 ms 12076 KB Output is correct
10 Correct 6 ms 11988 KB Output is correct
11 Correct 115 ms 30760 KB Output is correct
12 Correct 59 ms 23040 KB Output is correct
13 Correct 50 ms 24456 KB Output is correct
14 Correct 96 ms 28852 KB Output is correct
15 Correct 67 ms 27708 KB Output is correct
16 Correct 52 ms 26824 KB Output is correct
17 Correct 7 ms 11976 KB Output is correct
18 Correct 7 ms 11988 KB Output is correct
19 Correct 7 ms 11968 KB Output is correct
20 Correct 7 ms 12116 KB Output is correct
21 Correct 9 ms 12244 KB Output is correct
22 Correct 205 ms 35360 KB Output is correct
23 Correct 200 ms 34852 KB Output is correct
24 Correct 133 ms 25204 KB Output is correct
25 Correct 144 ms 29284 KB Output is correct
26 Correct 82 ms 28228 KB Output is correct

Subtask #5
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 11988 KB Output is correct
2 Correct 6 ms 11988 KB Output is correct
3 Correct 7 ms 11988 KB Output is correct
4 Correct 6 ms 11988 KB Output is correct
5 Correct 6 ms 11988 KB Output is correct
6 Correct 6 ms 11988 KB Output is correct
7 Correct 8 ms 11992 KB Output is correct
8 Correct 6 ms 11988 KB Output is correct
9 Correct 6 ms 12076 KB Output is correct
10 Correct 6 ms 11988 KB Output is correct
11 Correct 115 ms 30760 KB Output is correct
12 Correct 59 ms 23040 KB Output is correct
13 Correct 50 ms 24456 KB Output is correct
14 Correct 96 ms 28852 KB Output is correct
15 Correct 67 ms 27708 KB Output is correct
16 Correct 52 ms 26824 KB Output is correct
17 Correct 7 ms 11976 KB Output is correct
18 Correct 7 ms 11988 KB Output is correct
19 Correct 7 ms 11968 KB Output is correct
20 Correct 7 ms 12116 KB Output is correct
21 Correct 9 ms 12244 KB Output is correct
22 Correct 205 ms 35360 KB Output is correct
23 Correct 200 ms 34852 KB Output is correct
24 Correct 133 ms 25204 KB Output is correct
25 Correct 144 ms 29284 KB Output is correct
26 Correct 82 ms 28228 KB Output is correct
27 Correct 7 ms 12116 KB Output is correct
28 Correct 8 ms 12116 KB Output is correct
29 Correct 8 ms 12116 KB Output is correct
30 Correct 7 ms 12072 KB Output is correct
31 Correct 13 ms 12464 KB Output is correct
32 Correct 8 ms 12208 KB Output is correct
33 Correct 7 ms 12116 KB Output is correct
34 Correct 415 ms 35252 KB Output is correct
35 Correct 343 ms 34804 KB Output is correct
36 Correct 351 ms 36008 KB Output is correct
37 Correct 273 ms 29928 KB Output is correct
38 Correct 173 ms 28524 KB Output is correct
39 Correct 70 ms 21188 KB Output is correct

Subtask #6
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 11988 KB Output is correct
2 Correct 6 ms 11988 KB Output is correct
3 Correct 7 ms 11988 KB Output is correct
4 Correct 6 ms 11988 KB Output is correct
5 Correct 6 ms 11988 KB Output is correct
6 Correct 6 ms 11988 KB Output is correct
7 Correct 8 ms 11992 KB Output is correct
8 Correct 6 ms 11988 KB Output is correct
9 Correct 6 ms 12076 KB Output is correct
10 Correct 6 ms 11988 KB Output is correct
11 Correct 115 ms 30760 KB Output is correct
12 Correct 59 ms 23040 KB Output is correct
13 Correct 50 ms 24456 KB Output is correct
14 Correct 96 ms 28852 KB Output is correct
15 Correct 67 ms 27708 KB Output is correct
16 Correct 52 ms 26824 KB Output is correct
17 Correct 7 ms 11976 KB Output is correct
18 Correct 7 ms 11988 KB Output is correct
19 Correct 7 ms 11968 KB Output is correct
20 Correct 7 ms 12116 KB Output is correct
21 Correct 9 ms 12244 KB Output is correct
22 Correct 205 ms 35360 KB Output is correct
23 Correct 200 ms 34852 KB Output is correct
24 Correct 133 ms 25204 KB Output is correct
25 Correct 144 ms 29284 KB Output is correct
26 Correct 82 ms 28228 KB Output is correct
27 Correct 7 ms 12116 KB Output is correct
28 Correct 8 ms 12116 KB Output is correct
29 Correct 8 ms 12116 KB Output is correct
30 Correct 7 ms 12072 KB Output is correct
31 Correct 13 ms 12464 KB Output is correct
32 Correct 8 ms 12208 KB Output is correct
33 Correct 7 ms 12116 KB Output is correct
34 Correct 415 ms 35252 KB Output is correct
35 Correct 343 ms 34804 KB Output is correct
36 Correct 351 ms 36008 KB Output is correct
37 Correct 273 ms 29928 KB Output is correct
38 Correct 173 ms 28524 KB Output is correct
39 Correct 70 ms 21188 KB Output is correct
40 Correct 17 ms 12472 KB Output is correct
41 Correct 23 ms 12840 KB Output is correct
42 Correct 13 ms 12500 KB Output is correct
43 Correct 15 ms 12500 KB Output is correct
44 Correct 655 ms 36760 KB Output is correct
45 Correct 448 ms 30248 KB Output is correct
46 Correct 502 ms 32076 KB Output is correct
47 Correct 431 ms 32252 KB Output is correct
48 Correct 235 ms 30276 KB Output is correct

Subtask #7
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 11988 KB Output is correct
2 Correct 8 ms 12040 KB Output is correct
3 Correct 8 ms 11988 KB Output is correct
4 Correct 6 ms 11988 KB Output is correct
5 Correct 7 ms 11988 KB Output is correct
6 Correct 6 ms 11988 KB Output is correct
7 Correct 7 ms 11988 KB Output is correct
8 Correct 6 ms 12032 KB Output is correct
9 Correct 6 ms 11988 KB Output is correct
10 Correct 6 ms 11988 KB Output is correct
11 Correct 6 ms 11988 KB Output is correct
12 Correct 6 ms 11988 KB Output is correct
13 Correct 6 ms 11988 KB Output is correct
14 Correct 7 ms 12116 KB Output is correct
15 Correct 7 ms 12116 KB Output is correct
16 Correct 7 ms 12116 KB Output is correct
17 Correct 7 ms 12116 KB Output is correct
18 Correct 8 ms 12116 KB Output is correct
19 Correct 7 ms 12116 KB Output is correct
20 Correct 6 ms 12116 KB Output is correct
21 Correct 6 ms 12116 KB Output is correct
22 Correct 7 ms 12116 KB Output is correct
23 Correct 7 ms 11988 KB Output is correct
24 Correct 7 ms 12020 KB Output is correct
25 Correct 8 ms 12116 KB Output is correct
26 Correct 45 ms 12800 KB Output is correct
27 Correct 28 ms 12676 KB Output is correct
28 Correct 34 ms 12664 KB Output is correct
29 Correct 20 ms 12588 KB Output is correct
30 Correct 16 ms 12456 KB Output is correct
31 Correct 21 ms 12760 KB Output is correct
32 Correct 13 ms 12452 KB Output is correct
33 Correct 13 ms 12548 KB Output is correct
34 Correct 33 ms 12724 KB Output is correct
35 Correct 7 ms 12116 KB Output is correct
36 Correct 7 ms 12116 KB Output is correct
37 Correct 13 ms 12540 KB Output is correct
38 Correct 16 ms 12500 KB Output is correct
39 Correct 8 ms 12244 KB Output is correct
40 Correct 6 ms 11988 KB Output is correct
41 Correct 6 ms 11988 KB Output is correct
42 Correct 7 ms 11988 KB Output is correct
43 Correct 6 ms 11988 KB Output is correct
44 Correct 6 ms 11988 KB Output is correct
45 Correct 6 ms 11988 KB Output is correct
46 Correct 8 ms 11992 KB Output is correct
47 Correct 6 ms 11988 KB Output is correct
48 Correct 6 ms 12076 KB Output is correct
49 Correct 6 ms 11988 KB Output is correct
50 Correct 115 ms 30760 KB Output is correct
51 Correct 59 ms 23040 KB Output is correct
52 Correct 50 ms 24456 KB Output is correct
53 Correct 96 ms 28852 KB Output is correct
54 Correct 67 ms 27708 KB Output is correct
55 Correct 52 ms 26824 KB Output is correct
56 Correct 7 ms 11976 KB Output is correct
57 Correct 7 ms 11988 KB Output is correct
58 Correct 7 ms 11968 KB Output is correct
59 Correct 7 ms 12116 KB Output is correct
60 Correct 9 ms 12244 KB Output is correct
61 Correct 205 ms 35360 KB Output is correct
62 Correct 200 ms 34852 KB Output is correct
63 Correct 133 ms 25204 KB Output is correct
64 Correct 144 ms 29284 KB Output is correct
65 Correct 82 ms 28228 KB Output is correct
66 Correct 7 ms 12116 KB Output is correct
67 Correct 8 ms 12116 KB Output is correct
68 Correct 8 ms 12116 KB Output is correct
69 Correct 7 ms 12072 KB Output is correct
70 Correct 13 ms 12464 KB Output is correct
71 Correct 8 ms 12208 KB Output is correct
72 Correct 7 ms 12116 KB Output is correct
73 Correct 415 ms 35252 KB Output is correct
74 Correct 343 ms 34804 KB Output is correct
75 Correct 351 ms 36008 KB Output is correct
76 Correct 273 ms 29928 KB Output is correct
77 Correct 173 ms 28524 KB Output is correct
78 Correct 70 ms 21188 KB Output is correct
79 Correct 17 ms 12472 KB Output is correct
80 Correct 23 ms 12840 KB Output is correct
81 Correct 13 ms 12500 KB Output is correct
82 Correct 15 ms 12500 KB Output is correct
83 Correct 655 ms 36760 KB Output is correct
84 Correct 448 ms 30248 KB Output is correct
85 Correct 502 ms 32076 KB Output is correct
86 Correct 431 ms 32252 KB Output is correct
87 Correct 235 ms 30276 KB Output is correct
88 Execution timed out 2074 ms 40348 KB Time limit exceeded
89 Halted 0 ms 0 KB -