Submission #619880

#	Time	Username	Problem	Language	Result	Execution time	Memory
619880		sokratisi	Stations (IOI20_stations)	C++17	0 / 100	3 ms	368 KiB

stations

#include "stations.h"
#include <vector>

using namespace std;

int cur = 0;

void dfs(int s, vector<bool>& vis, const vector<vector<int>>& adj, vector<int>& labels) {
    labels[s] = cur++;
    vis[s] = true;
    for (auto u: adj[s]) {
        if (!vis[u]) {
            dfs(u, vis, adj, labels);
        }
    }
}


vector<int> label(int n, int k, vector<int> u, vector<int> v) {
	vector<vector<int>> adj(n);
    for (int i = 0; i < u.size(); i++) {
        adj[u[i]].push_back(v[i]);
        adj[v[i]].push_back(u[i]);
    }
    int s;
    for (int i = 0; i < n; i++) if(adj[i].size() == 1) s = i;
    vector<int> labels(n);
    vector<bool> vis(n, false);
    return labels;
}

int find_next_station(int s, int t, vector<int> c) {
    if (c.size() == 1) return c[0];
    if (s < t) return max(c[0], c[1]);
    return min(c[0], c[1]);
}

Compilation message (stderr)

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:21:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |     for (int i = 0; i < u.size(); i++) {
      |                     ~~^~~~~~~~~~
stations.cpp:25:9: warning: variable 's' set but not used [-Wunused-but-set-variable]
   25 |     int s;
      |         ^

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