oj.uz

Submission #412512

# Submission time Handle Problem Language Result Execution time Memory
412512 2021-05-27T03:05:14 Z two_sides Stations (IOI20_stations) C++17
0 / 100
 1019 ms 784 KB 
#include "stations.h"
#include <bits/stdc++.h>

using namespace std;

void dfs(int u, int p, bool d, int &cnt, const vector <vector <int>> &adj, vector <int> &label) {
    if (!d) label[u] = cnt++;
    for (int v : adj[u])
        if (v != p) dfs(v, u, !d, cnt, adj, label);
    if (d) label[u] = cnt++; 
}

vector <int> label(int n, int k, vector <int> u, vector <int> v) {
    vector <vector <int>> adj(n);
    vector <int> label(n);
    for (int i = 0; i + 1 < n; i++) {
        adj[u[i]].push_back(v[i]);
        adj[v[i]].push_back(u[i]);
    }
    int cnt = 0;
    dfs(0, -1, 0, cnt, adj, label);
    return label;
}

int find_next_station(int s, int t, vector <int> c) {
    if (s < c[0]) {
        int lo = s, hi = c.size() > 1 ? c[c.size() - 2] : s;
        if (lo <= t && t <= hi) {
            for (int u : c)
                if (u >= t) return u;
        }
        return c[c.size() - 1];
    } else {
        int hi = s, lo = c.size() > 1 ? c[1] : s;
        if (lo <= t && t <= hi) {
            for (int u : c)
                if (u <= t) return u;
        }
        return c[0];
    }
    return c[0];
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 686 ms 784 KB Wrong query response.
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 534 ms 488 KB Wrong query response.
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 557 ms 616 KB Wrong query response.
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1019 ms 400 KB Output is correct
2 Incorrect 703 ms 560 KB Wrong query response.
3 Halted 0 ms 0 KB -

Subtask #5
0 / 61.0

# Verdict Execution time Memory Grader output
1 Incorrect 681 ms 656 KB Wrong query response.
2 Halted 0 ms 0 KB -