oj.uz

Submission #530320

# Submission time Handle Problem Language Result Execution time Memory
530320 2022-02-25T04:13:24 Z byunjaewoo Stations (IOI20_stations) C++17
0 / 100
 3000 ms 2097156 KB 
#include "stations.h"
#include <bits/stdc++.h>
using namespace std;

const int Nmax=1010;
int N, K, Size[Nmax], Dep[Nmax];
vector<int> adj[Nmax], L;

void DFS_Size(int curr, int prev) {
    Size[curr]=1;
    for(int next:adj[curr]) if(next!=prev) {
        Dep[next]=Dep[curr]+1;
        DFS_Size(next, curr);
        Size[curr]+=Size[next];
    }
}

void DFS_Label(int curr, int prev, int s, int e) {
    if(Dep[curr]%2) L[curr]=s++;
    else L[curr]=e--;
    for(int next:adj[curr]) if(next!=prev) {
        DFS_Label(next, curr, s, s+Size[next]-1);
        s+=Size[next];
    }
}

vector<int> label(int n, int k, vector<int> u, vector<int> v) {
    N=n, K=k;
    for(int i=0; i<N-1; i++) {
        adj[u[i]].push_back(v[i]);
        adj[v[i]].push_back(u[i]);
    }
    DFS_Size(0, -1);
    L.resize(N);
    DFS_Label(0, -1, 0, N-1);
    return L;
}

int find_next_station(int s, int t, vector<int> c) {
    for(int i:c) if(i==t) return i;
    if(c[0]<s) {
        if(s<t && t<c[c.size()-2]) return (*lower_bound(c.begin(), c.end(), t));
        else return c.back();
    }
    else {
        if(t<c[0] || t>s) return c[0];
        else return (*(lower_bound(c.begin(), c.end(), t)-1));
    }
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 1393 ms 2097156 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3070 ms 308 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 1096 ms 2097156 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 304 KB Invalid labels (duplicates values). scenario=1, label=1
2 Halted 0 ms 0 KB -

Subtask #5
0 / 61.0

# Verdict Execution time Memory Grader output
1 Runtime error 1716 ms 2097156 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -