Submission #1140473

#	Time	Username	Problem	Language	Result	Execution time	Memory
1140473		Luvidi	Longest Trip (IOI23_longesttrip)	C++20	30 / 100	331 ms	768 KiB

longesttrip

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

vector<int> f(int x,vector<int> v){
    if(v.empty())return {x};
    vector<int> v1,v2;
    for(int i=1;i<v.size();i++){
        if(are_connected({v[0]},{v[i]}))v1.push_back(v[i]);
        else v2.push_back(v[i]);
    }
    v1=f(v[0],v1);
    v1.push_back(x);
    for(int i:v2)v1.push_back(i);
    return v1;
}

std::vector<int> longest_trip(int n, int d)
{
    vector<int> v1,v2;
    for(int i=1;i<n;i++){
        if(are_connected({0},{i}))v1.push_back(i);
        else v2.push_back(i);
    }
    v1=f(0,v1);
    if(v1.size()>v2.size())return v1;
    return v2;
}

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