Submission #955311

#	Time	Username	Problem	Language	Result	Execution time	Memory
955311		LCJLY	Team Contest (JOI22_team)	C++14	100 / 100	110 ms	17076 KiB

team

#include <bits/stdc++.h>
using namespace std;
 
#define int long long 
#define ld long double
#define show(x,y) cout << y << " " << #x << endl;
#define show2(x,y,i,j) cout << y << " " << #x << "  " << j << " " << #i << endl;
#define show3(x,y,i,j,p,q) cout << y << " " << #x << "  " << j << " " << #i << "  " << q << " " << #p << endl;
#define show4(x,y) for(auto it:y) cout << it << " "; cout << #x << endl;
typedef pair<int,int>pii;
typedef pair<pii,pii>pi2;
mt19937 rng(chrono::system_clock::now().time_since_epoch().count());

void solve(){
	int n;
	cin >> n;
	array<int,3> arr[n];
	for(int x=0;x<n;x++){
		cin >> arr[x][0] >> arr[x][1] >> arr[x][2];
	}
	
	sort(arr,arr+n);
	reverse(arr,arr+n);
	int best=-1;
	priority_queue<pii>pq,pq2;
	bool done[n+5];
	memset(done,0,sizeof(done));
	for(int x=0;x<n;x++){
		pq.push({arr[x][1],x});
		pq2.push({arr[x][2],x});
	}
	
	//for(int x=0;x<n;x++){
		//cout << arr[x][0] << " " << arr[x][1] << " " << arr[x][2] << endl;
	//}
	
	int ptr=0;
	for(int x=0;x<n;x++){
		while(ptr<n&&arr[ptr][0]>=arr[x][0]){
			done[ptr]=true;
			ptr++;
		}
		pii cur={-1,-1};
		pii cur2={-1,-1};
		
		while(!pq.empty()&&!pq2.empty()){
			pii hold=pq.top();
			pii hold2=pq2.top();
			bool nxt=false;
			if(done[hold.second]){
				pq.pop();
				nxt=true;
			}
			if(done[hold2.second]){
				pq2.pop();
				nxt=true;
			}
			if(nxt) continue;
			if(arr[hold.second][2]>=hold2.first){
				pq.pop();
				done[hold.second]=true;
			}
			else if(arr[hold2.second][1]>=hold.first){
				pq2.pop();
				done[hold2.second]=true;
			}
			else break;
		}
		
		cur={-1,-1};
		cur2={-1,-1};
		
		
		if(!pq.empty()) cur=pq.top();
		if(!pq2.empty()) cur2=pq2.top();
		//show2(cur.first,cur.first,cur2.first,cur2.first);
		//show2(cur.second,cur.second,cur2.second,cur2.second);
		if(cur.first>arr[x][1]&&cur2.first>arr[x][2]){
			best=max(best,arr[x][0]+cur.first+cur2.first);
		}	
		//show4(done,done);
	}
	cout << best;
}	
 
int32_t main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	int t=1;
	//cin >> t;
	while(t--){
		solve();
	}
}

• Subtask 1: 8 / 8
• Subtask 2: 29 / 29
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
• Subtask 5: 9 / 9
• Subtask 6: 9 / 9
• Subtask 7: 27 / 27