Submission #979304

#	Time	Username	Problem	Language	Result	Execution time	Memory
979304		Zicrus	Stations (IOI20_stations)	C++17	5 / 100	684 ms	1044 KiB

stations

#include <bits/stdc++.h>
#include "stations.h"
using namespace std;
 
typedef long long ll;
 
vector<int> label(int n, int k, vector<int> u, vector<int> v) {
    vector<ll> degree(n);
    vector<vector<int>> adj(n);
    for (ll i = 0; i < n-1; i++) {
        degree[u[i]]++;
        degree[v[i]]++;
        adj[u[i]].push_back(v[i]);
        adj[v[i]].push_back(u[i]);
    }
    ll one = 0;
    for (ll i = 0; i < n; i++) {
        if (degree[i] == 1) {
            one = i;
            break;
        }
    }
    vector<int> res(n);
    ll prev = -1;
    for (ll i = 0; i < n; i++) {
        res[one] = i;
        for (auto &e : adj[one]) {
            if (e != prev) {
                prev = one;
                one = e;
                break;
            }
        }
    }
    return res;
}
 
int find_next_station(int s, int t, vector<int> c) {
    if (t > s) return s + 1;
    else return s - 1;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 16
• Subtask 4: 0 / 10
• Subtask 5: 0 / 61