oj.uz

답안 #618811

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
618811 2022-08-02T07:36:27 Z CSQ31 Team Contest (JOI22_team) C++17
37 / 100
 2000 ms 12712 KB 
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define sz(a) 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<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
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]);
	}
	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));
	}
};
int main()
{
	owo
	int n;
	cin>>n;
	vector<array<ll,3>>a(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());
	}
	int sz0 = sz(crd[0]);
	int sz1 = sz(crd[1]);
	int sz2 = sz(crd[2]);
	seg bmx(sz1),cmx(sz2);
	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
		/*
		for(int j=0;j<i;j++){
			if(a[j][1] < a[i][1])pts1[i][2] = max(pts1[i][2],a[j][2]);
			if(a[j][2] < a[i][2])pts2[i][1] = max(pts2[i][1],a[j][1]);
		}*/
		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]);
		
	}
	ll ans = -1;
	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,a[x][0] + pts1[j][0]);
				if(pts2[j][1] > a[x][1] && pts2[j][2] >a[x][2])ans = max(ans,a[x][0] + pts2[j][0]);
			}
		}
		i = k+1;
	}
	cout<<ans;
	
	
	
}

Compilation message

team.cpp: In function 'int main()':
team.cpp:61:6: warning: unused variable 'sz0' [-Wunused-variable]
   61 |  int sz0 = sz(crd[0]);
      |      ^~~

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 2 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 3 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct

Subtask #2
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 2 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 3 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 55 ms 724 KB Output is correct
27 Correct 60 ms 724 KB Output is correct
28 Correct 49 ms 724 KB Output is correct
29 Correct 36 ms 724 KB Output is correct
30 Correct 20 ms 620 KB Output is correct
31 Correct 52 ms 596 KB Output is correct
32 Correct 38 ms 668 KB Output is correct
33 Correct 10 ms 596 KB Output is correct
34 Correct 17 ms 788 KB Output is correct
35 Correct 2 ms 340 KB Output is correct
36 Correct 2 ms 340 KB Output is correct
37 Correct 18 ms 724 KB Output is correct
38 Correct 20 ms 620 KB Output is correct
39 Correct 15 ms 468 KB Output is correct

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Execution timed out 2040 ms 12712 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #4
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Execution timed out 2040 ms 12712 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #5
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Execution timed out 2040 ms 12712 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #6
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Execution timed out 2040 ms 12712 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #7
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 2 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 3 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 55 ms 724 KB Output is correct
27 Correct 60 ms 724 KB Output is correct
28 Correct 49 ms 724 KB Output is correct
29 Correct 36 ms 724 KB Output is correct
30 Correct 20 ms 620 KB Output is correct
31 Correct 52 ms 596 KB Output is correct
32 Correct 38 ms 668 KB Output is correct
33 Correct 10 ms 596 KB Output is correct
34 Correct 17 ms 788 KB Output is correct
35 Correct 2 ms 340 KB Output is correct
36 Correct 2 ms 340 KB Output is correct
37 Correct 18 ms 724 KB Output is correct
38 Correct 20 ms 620 KB Output is correct
39 Correct 15 ms 468 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 0 ms 212 KB Output is correct
45 Correct 0 ms 340 KB Output is correct
46 Correct 0 ms 340 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 2 ms 340 KB Output is correct
49 Correct 0 ms 340 KB Output is correct
50 Execution timed out 2040 ms 12712 KB Time limit exceeded
51 Halted 0 ms 0 KB -