Submission #939741

#	Time	Username	Problem	Language	Result	Execution time	Memory
939741		jamjanek	Longest Trip (IOI23_longesttrip)	C++17	25 / 100	8 ms	856 KiB

longesttrip

#include "longesttrip.h"
#include<bits/stdc++.h>
using namespace std;
bool czy[300];
vector<int> longest_trip(int n, int d)
{
	int i;
	vector<int>tab[2];tab[0].push_back(0);tab[1].push_back(1);
	for(i=1;i<n/2;i++){
		int a = i*2, b = i*2+1;
		if(are_connected({a}, {b})){
			if(are_connected({a}, {tab[0].back()})){
				tab[0].push_back(a);
				tab[0].push_back(b);
			}
			else if(are_connected({a}, {tab[1].back()})){
				tab[1].push_back(a);
				tab[1].push_back(b);				
			}
			else{
				while(tab[1].size()){
					tab[0].push_back(tab[1].back());
					tab[1].pop_back();
				}
				tab[1].push_back(a);
				tab[1].push_back(b);
			}
		}
		else{
			if(are_connected({a}, {tab[0].back()})){
				tab[0].push_back(a);
				if(are_connected({b}, {tab[1].back()}))
					tab[1].push_back({b});
				else{
					while(tab[1].size()){
						tab[0].push_back(tab[1].back());
						tab[1].pop_back();
					}
					tab[1].push_back(b);
				}
			}
			else{
				tab[0].push_back(b);
				if(are_connected({a}, {tab[1].back()}))
					tab[1].push_back({a});
				else{
					while(tab[1].size()){
						tab[0].push_back(tab[1].back());
						tab[1].pop_back();
					}
					tab[1].push_back(a);
				}
			}
		}
	}
	if(n%2){
		if(are_connected({n-1}, {tab[0].back()}))
			tab[0].push_back(n-1);
		else if(are_connected({n-1}, {tab[1].back()}))
			tab[1].push_back(n-1);
		else{
			while(tab[1].size()){
				tab[0].push_back(tab[1].back());
				tab[1].pop_back();
			}
			tab[1].push_back(n-1);			
		}
	}
	if(tab[0].size()>=tab[1].size())return tab[0];
	return tab[1];
}

• Subtask 0: 0 / 0
• Subtask 1: 0 / 5
• Subtask 2: 0 / 10
• Subtask 3: 25 / 25
• Subtask 4: 0 / 60