Submission #762662

#	Time	Username	Problem	Language	Result	Execution time	Memory
762662		AmirElarbi	Fun Tour (APIO20_fun)	C++14	0 / 100	78 ms	15896 KiB

fun

#include <bits/stdc++.h>
#define ve vector
#define vi vector<int>
#define vii vector<ii>
#define ii pair<int,int>
#define fi first
#define se second
#define ll long long
#define INF 1e9+7
#define pb push_back
#define optimise ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
template<class T>
using Tree = tree<T, null_type, less<T>, rb_tree_tag,
    tree_order_statistics_node_update>;
const int MOD = 1e9+7;
const int nax = 1e5+5;
#include "fun.h"


int mx = 0, node = 0;
vi adj[nax];
bool vis[nax];
void farthest(int u, int p, int dep){
    if(mx < dep) node = u, mx = dep;
    for(auto x : adj[u]){
        if(x == p || vis[x] == 1) continue;
        farthest(x,u,dep+1);
    } 
}
std::vector<int> createFunTour(int N, int Q) {
    vi res;
    for(int i = 0; i < N; i++){
        for(int j = i+1; j < N; j++){
            if(hoursRequired(i,j) == 1) {
                adj[i].pb(j);
                adj[j].pb(i);
            }
        }
    }
    int root = 0;
    for (int i = 0; i < N; ++i)
    {
        if(adj[i].size() == 1) root = i;
    }
    res.pb(root);
    vis[root] = 1;
    for (int i = 0; i < N-1; ++i)
    {
        node = 0, mx = 0;
        farthest(root, root, 0);
        vis[node] = 1;
        res.pb(node);
        root = node;
    }
    return res;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 16
• Subtask 3: 0 / 21
• Subtask 4: 0 / 19
• Subtask 5: 0 / 34