Submission #1065175

#	Time	Username	Problem	Language	Result	Execution time	Memory
1065175		pcc	Longest Trip (IOI23_longesttrip)	C++17	15 / 100	8 ms	600 KiB

longesttrip

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

#define vi vector<int>

int ask(vector<int> a,vector<int> b){
	return are_connected(a,b);
}

int ask(int a,int b){
	return ask(vector<int>({a}),vector<int>({b}));
}

std::vector<int> longest_trip(int N, int D){
	deque<int> ans;
	if(!ask(0,1)){
		ans = {0,2,1};
	}
	else if(!ask(0,2)){
		ans = {0,1,2};
	}
	else{
		ans = {2,0,1};
	}
	for(int i = 3;i<N;i++){
		if(ask(i,ans.front())){
			ans.push_front(i);
		}
		else{
			ans.push_back(i);
		}
	}
	vi v;
	for(auto &i:ans)v.push_back(i);
	return v;
}

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