Submission #967510

#	Time	Username	Problem	Language	Result	Execution time	Memory
967510		Jarif_Rahman	Longest Trip (IOI23_longesttrip)	C++17	30 / 100	11 ms	620 KiB

longesttrip

#include "longesttrip.h"
#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;

vector<int> longest_trip(int n, int D){
    vector<int> A = {0}, B = {};
    for(int i = 1; i < n; i++){
        if(B.empty()){
             if(are_connected({A.back()}, {i})) A.push_back(i);
             else if(are_connected({A[0]}, {i})) A.insert(A.begin(), i);
             else B = {i};
        }
        else{
            if(are_connected({A.back()}, {i})) A.push_back(i);
            else if(are_connected({B.back()}, {i})) B.push_back(i);
            else{
                reverse(B.begin(), B.end());
                A.insert(A.end(), B.begin(), B.end());
                B.clear();
                i--;
            }
        }
        if(A.size() < B.size()) swap(A, B);
    }

    return A;
}

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