Submission #859753

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
859753	2023-10-10 15:21:05	Ludissey	Longest Trip (IOI23_longesttrip)	C++17	100 / 100	12 ms	692 KiB

longesttrip

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#include <bits/stdc++.h>
#include "longesttrip.h"
using namespace std;
 
std::vector<int> longest_trip(int n, int d)
{
    vector<int> A;
    vector<int> B;
    A.push_back(0);
    for (int i = 1; i < n-1; i+=2)
    {
        if(are_connected({i},{i+1})){
            if(are_connected({i}, {A.back()})){
                A.push_back(i);
                A.push_back(i+1);
            } 
            else if(B.size()==0 || are_connected({i}, {B.back()})){
                B.push_back(i);
                B.push_back(i+1);
            } 
            else {
                for (int x = B.size()-1; x >= 0; x--) A.push_back(B[x]);
                B.clear();
                B.push_back(i);
                B.push_back(i+1);
            }
        }else{
            if(are_connected({i}, {A.back()})){
                A.push_back(i);
                if(B.size()==0 || are_connected({i}, {B.back()})){
 
 
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• Subtask 0: 0 / 0
• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 25 / 25
• Subtask 4: 60 / 60