oj.uz

Submission #419075

# Submission time Handle Problem Language Result Execution time Memory
419075 2021-06-06T11:47:19 Z NintsiChkhaidze Stations (IOI20_stations) C++14
10 / 100
 970 ms 608 KB 
#include "stations.h"
#include <bits/stdc++.h>
#define pb push_back
using namespace std;
vector <int> vec[1005];
int cnt,in[1005],out[1005];
void dfs(int x,int p){
    in[x] = ++cnt;
    for (int j=0;j<vec[x].size();j++){
        int to = vec[x][j];
        if (to == p) continue;
        dfs(to,x);
    }
    out[x] = cnt;
}
 
vector<int> label(int n, int k, vector<int> u, vector<int> v) {
    vector<int> labels;
    for (int i=0;i<1001;i++){
        vec[i].clear();
        in[i] = out[i] = 0;
    }
    for (int i=0;i<u.size();i++){
        vec[u[i]].pb(v[i]);
        vec[v[i]].pb(u[i]);
    }
    
    cnt=0;
    dfs(0,0);
    for (int i=0;i<n;i++)
        labels.pb(in[i]*1000 + out[i]);
    
    return labels;
}
int find_next_station(int s, int t, vector<int> c) {
    int Ins = (s/1000),Int = (t/1000),Out = (t%1000);
    if (Ins < Int){
        for (int i=1;i<c.size();i++)
            if (Int >= (c[i]/1000) && (c[i]%1000) >= Out) return c[i];
    }
    return c[0];
}

Compilation message

stations.cpp: In function 'void dfs(int, int)':
stations.cpp:9:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |     for (int j=0;j<vec[x].size();j++){
      |                  ~^~~~~~~~~~~~~~
stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:23:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |     for (int i=0;i<u.size();i++){
      |                  ~^~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:38:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |         for (int i=1;i<c.size();i++)
      |                      ~^~~~~~~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 440 KB Invalid labels (values out of range). scenario=0, k=1000, vertex=0, label=1010
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 384 KB Invalid labels (values out of range). scenario=0, k=1000, vertex=0, label=1996
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 460 KB Invalid labels (values out of range). scenario=4, k=1000000, vertex=585, label=1001000
2 Halted 0 ms 0 KB -

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 969 ms 400 KB Output is correct
2 Correct 778 ms 400 KB Output is correct
3 Correct 724 ms 544 KB Output is correct
4 Correct 3 ms 464 KB Output is correct
5 Correct 5 ms 608 KB Output is correct
6 Correct 1 ms 472 KB Output is correct
7 Correct 730 ms 400 KB Output is correct
8 Correct 970 ms 520 KB Output is correct
9 Correct 703 ms 596 KB Output is correct
10 Correct 688 ms 544 KB Output is correct
11 Correct 7 ms 604 KB Output is correct
12 Correct 8 ms 468 KB Output is correct
13 Correct 5 ms 596 KB Output is correct
14 Correct 4 ms 464 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 669 ms 508 KB Output is correct
17 Correct 521 ms 508 KB Output is correct
18 Correct 628 ms 528 KB Output is correct
19 Correct 535 ms 516 KB Output is correct
20 Correct 577 ms 516 KB Output is correct

Subtask #5
0 / 61.0

# Verdict Execution time Memory Grader output
1 Incorrect 595 ms 528 KB Wrong query response.
2 Halted 0 ms 0 KB -