Submission #1341033

#	Time	Username	Problem	Language	Result	Execution time	Memory
1341033		karel	Longest Trip (IOI23_longesttrip)	C++20	0 / 100	3 ms	412 KiB

longesttrip

#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> longest_trip(int N, int D)
{
    vector<int> a, b;

    a.push_back(0);

    for(int i = 2; i < N; i++)
    {
        bool ac = are_connected({i}, {a.back()});
        if(b.empty())
        {
            if(ac)
                a.push_back(i);
            else
                b.push_back(i);
            continue;
        }
            
        bool bc = are_connected({i}, {b.back()});
        if(ac && bc)
        {
            a.push_back(i);
            for(int j = b.size() - 1; j >= 0; j--)
                a.push_back(b[j]);
            b.clear();
        }
        else if(ac)
        {
            a.push_back(i);
        } else if(bc)
        {
            b.push_back(i);
        } else {
            for(int j = b.size() - 1; j >= 0; j--)
                a.push_back(b[j]);
            b.clear();
            b.push_back(i);
        }
    }
    
    if(a.size() > b.size())
        return a;
    return b;
}

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