Submission #1065623

#	Time	Username	Problem	Language	Result	Execution time	Memory
1065623		ReLice	Longest Trip (IOI23_longesttrip)	C++17	15 / 100	870 ms	1100 KiB

longesttrip

#include "longesttrip.h"
#include <bits/stdc++.h>
#define ll int
#define pb push_back
#define ins insert
#define fr first
#define sc second
#define vll vector<ll>
#define sz size()
#define pf push_front
#define bc back()
using namespace std;

const ll N = 260;
const ll inf = 1e9 + 7;

ll g[N][N];
bool vis[N];

vector<int> longest_trip(int n, int D){
	ll i,j;
	
	for(i=0;i<n;i++){
		for(j=0;j<n;j++) g[i][j] = 0;
		vis[i] = 0;
	}
	
	for(i=0;i<n;i++){
		for(j=i+1;j<n;j++){
			if(are_connected({i},{j})){
				g[i][j] = g[j][i] = 1;
			}
		}
	}
	
	deque<ll> v;
	v.pb(0);
	for(i=0;i<n;i++){
		if(g[0][i]){v.pb(i);break;}
	}
	
	vis[v[0]] = 1;
	vis[v[1]] = 1;
	
	for(i=0;i<n;i++){
		if(vis[i])continue;
		if(g[v[0]][i]) v.pf(i);
		else if(g[v.bc][i]) v.pb(i);
	}
	
	vll ans;
	for(auto i : v) ans.pb(i);
	
	return ans;
}

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