Submission #319753

#	Time	Username	Problem	Language	Result	Execution time	Memory
319753		northlake	Stations (IOI20_stations)	C++17	5 / 100	1049 ms	996 KiB

stations

#include<stations.h>
#include<bits/stdc++.h>
 
using namespace std;
 
vector<int> label(int n, int k, vector<int> u, vector<int> v) {
    // create adjacency list
    vector<int> adjacency_list[n] = {};
    for (int i = 0; i < n-1; i++) {
        int fnode = u[i]; int snode = v[i];
        adjacency_list[fnode].push_back(snode); adjacency_list[snode].push_back(fnode);
    }
 
    // find origin
    int origin;
    for (int i = 0; i < n; i++) {
        if (adjacency_list[i].size() == 1) {
            origin = i;
            break;
        }
    }
 
    // create labels
    vector<int> labels(n);
    bool visited[n] {false};
    int counter = 0;
    int current_node = origin;
    while (counter < n) {
        visited[current_node] = true;
        labels[current_node] = counter;
        counter += 1;
        for (auto neighbor : adjacency_list[current_node]) {
            if (!visited[neighbor]) {
                current_node = neighbor;
                break;
            }
        }
    }
    return labels;
}
 
int find_next_station(int s, int t, vector<int> c) {
    if (t > s) return *max_element(c.begin(), c.end());
    else return *min_element(c.begin(), c.end());
}
 

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