Submission #917979

#	Time	Username	Problem	Language	Result	Execution time	Memory
917979		manishjha91	Team Contest (JOI22_team)	C++17	0 / 100	66 ms	8360 KiB

team

#include<bits/stdc++.h>
using namespace std;
 
using ll = long long;
using ull = unsigned long long;
using lld = long double;
const int inf = 1e9;
 
// #ifndef ONLINE_JUDGE
// #include "E:\Personal\cpp_codes\debugalgo.h"
// #else
// #define debug(x)
// #endif


ll get(vector<array<int,3>>&b, int idx)
{
	int n = b.size();
	vector<array<int,3>> a = b;
	sort(a.begin(),a.end(), [&](array<int,3>x, array<int,3>y){
		return x[idx]<y[idx];	
	});
	
	priority_queue<pair<int,int>> pqy,pqz;
	vector<array<int,3>> curr;
	
	int l = 0;
	ll mxy = -inf, mxz = -inf;
	ll ans = -1;
	for(int i=0; i<n; i++)
	{
		if(a[i][idx]==a[l][idx])
		{
			curr.push_back({i,a[i][(idx+1)%3],a[i][(idx+2)%3]});
		}
		else
		{
			while(!curr.empty())
			{
				pqy.push({curr.back()[1],curr.back()[0]});
				pqz.push({curr.back()[2],curr.back()[0]});
				curr.pop_back();
			}
			curr.push_back({i,a[i][(idx+1)%3],a[i][(idx+2)%3]});
			l = i;
		}

		if((!pqy.empty()) && (pqy.top().second!=pqz.top().second) && (a[pqy.top().second][(idx+2)%3]!=pqz.top().first) && (a[pqz.top().second][(idx+1)%3]!=pqy.top().first))
		{
			if(mxy+mxz<pqy.top().first + pqz.top().first)
			{
				mxy = max((ll)pqy.top().first,mxy);
				mxz = max((ll)pqz.top().first,mxz);
			}
		}
		
		if(a[i][(idx+1)%3]<mxy && a[i][(idx+2)%3]<mxz)
		{
			ans = max(ans, a[i][idx]+mxy+mxz);
		}
		
		
	}
	
	return ans;
	
}
 
void solve()
{
	int n;
	cin >> n;
 
	vector<array<int,3>> a(n);
	int mxx = 0, mxy = 0, mxz = 0;
	int mnx = inf, mny = inf, mnz = inf;
	for (int i = 0; i < n; i++)
	{
		cin >> a[i][0]>>a[i][1]>>a[i][2];
		mxx = max(mxx,a[i][0]);
		mxy = max(mxy,a[i][1]);
		mxz = max(mxz,a[i][2]);
		
		mnx = min(mnx, a[i][0]);
		mny = min(mny, a[i][1]);
		mnz = min(mnz, a[i][2]);
		
	}
	
	vector<array<int,3>> b;
	
	for(int i=0; i<n; i++)
	{
		int cnt = 0;
		if(a[i][0]==mxx) cnt++;
		if(a[i][1]==mxy) cnt++;
		if(a[i][2]==mxz) cnt++;
		
		if(cnt>=2) continue;
		b.push_back(a[i]);
	}
	
	swap(a,b);
	n = a.size();
	
	if(n<=2)
	{
		cout<<"-1\n";
		return;
	}
	ll ans = -1;
	
	for(int i=0; i<3; i++)
	{
		ans = max(ans, get(a,i));
	}
	cout<<ans<<"\n";
	
}
 
int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
 
// #ifndef ONLINE_JUDGE
// 	freopen("error.txt", "w", stderr);
// #endif
 
	int tt = 1;
	// cin >> tt;
	while (tt--)
	{
		solve();
	}
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 29
• Subtask 3: 0 / 9
• Subtask 4: 0 / 9
• Subtask 5: 0 / 9
• Subtask 6: 0 / 9
• Subtask 7: 0 / 27