oj.uz

Submission #420345

# Submission time Handle Problem Language Result Execution time Memory
420345 2021-06-08T09:56:29 Z NintsiChkhaidze Stations (IOI20_stations) C++14
76 / 100
 1073 ms 840 KB 
#include "stations.h"
#include <bits/stdc++.h>
//#include <iostream>
//#include <vector>
#define pb push_back
using namespace std;
vector <int> vec[1005],labels;
int cnt = 0,in[1005],out[1005];
void dfs(int x,int p,int t){
    in[x] = cnt++;
    if (t%2) labels[x] = in[x];
    
    for (int j=0;j<vec[x].size();j++){
        int to = vec[x][j];
        if (to == p) continue;
        dfs(to,x,t + 1);
    }
    out[x] = cnt++;
    if (!labels[x]) labels[x] = out[x];
}
 
vector<int> label(int n, int k, vector<int> u, vector<int> v) {
    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;
    labels.clear();
    for (int i=0;i<n;i++)
        labels.pb(0);
    dfs(0,0,0);
    return labels;
}
int find_next_station(int s, int t, vector<int> c) {
    sort(c.begin(),c.end());
    if (s > c[0]){
        //s - out
        for (int i = 1; i<c.size();i++){
            int l = c[i],r = s - 1;
            if (i!=c.size() - 1) r = c[i + 1] - 1;
            
            if (l <= t && t <= r) return c[i];
        }
        return c[0];
    }
    else{
        //s - in
        for (int i = 0; i<c.size() - 1; i++){
            int l = s + 1,r = c[i];
            if (i) l = c[i - 1] + 1;
            
            if (l <= t && t <= r) return c[i];
        }
        return c.back();
    }
}

Compilation message

stations.cpp: In function 'void dfs(int, int, int)':
stations.cpp:13:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     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:27:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for (int i=0;i<u.size();i++){
      |                  ~^~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:43:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |         for (int i = 1; i<c.size();i++){
      |                         ~^~~~~~~~~
stations.cpp:45:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |             if (i!=c.size() - 1) r = c[i + 1] - 1;
      |                 ~^~~~~~~~~~~~~~
stations.cpp:53:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |         for (int i = 0; i<c.size() - 1; i++){
      |                         ~^~~~~~~~~~~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 436 KB Invalid labels (values out of range). scenario=2, k=1000, vertex=0, label=1995
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 312 KB Invalid labels (values out of range). scenario=0, k=1000, vertex=0, label=1991
2 Halted 0 ms 0 KB -

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 652 ms 636 KB Output is correct
2 Correct 589 ms 784 KB Output is correct
3 Correct 1073 ms 696 KB Output is correct
4 Correct 685 ms 400 KB Output is correct
5 Correct 679 ms 564 KB Output is correct
6 Correct 515 ms 640 KB Output is correct
7 Correct 492 ms 564 KB Output is correct
8 Correct 3 ms 596 KB Output is correct
9 Correct 5 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 641 ms 400 KB Output is correct
12 Correct 475 ms 728 KB Output is correct
13 Correct 443 ms 736 KB Output is correct
14 Correct 534 ms 520 KB Output is correct
15 Correct 59 ms 528 KB Output is correct
16 Correct 88 ms 556 KB Output is correct
17 Correct 139 ms 528 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 886 ms 416 KB Output is correct
2 Correct 743 ms 512 KB Output is correct
3 Correct 693 ms 400 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 6 ms 480 KB Output is correct
6 Correct 2 ms 644 KB Output is correct
7 Correct 664 ms 512 KB Output is correct
8 Correct 1053 ms 572 KB Output is correct
9 Correct 861 ms 400 KB Output is correct
10 Correct 603 ms 400 KB Output is correct
11 Correct 5 ms 468 KB Output is correct
12 Correct 7 ms 468 KB Output is correct
13 Correct 6 ms 468 KB Output is correct
14 Correct 4 ms 468 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 537 ms 516 KB Output is correct
17 Correct 603 ms 516 KB Output is correct
18 Correct 634 ms 400 KB Output is correct
19 Correct 516 ms 428 KB Output is correct
20 Correct 477 ms 400 KB Output is correct

Subtask #5
50.0 / 61.0

# Verdict Execution time Memory Grader output
1 Partially correct 626 ms 652 KB Partially correct
2 Partially correct 604 ms 760 KB Partially correct
3 Correct 867 ms 400 KB Output is correct
4 Correct 758 ms 400 KB Output is correct
5 Correct 614 ms 528 KB Output is correct
6 Partially correct 537 ms 780 KB Partially correct
7 Partially correct 489 ms 668 KB Partially correct
8 Correct 2 ms 468 KB Output is correct
9 Correct 4 ms 476 KB Output is correct
10 Correct 2 ms 476 KB Output is correct
11 Partially correct 503 ms 528 KB Partially correct
12 Partially correct 582 ms 528 KB Partially correct
13 Correct 940 ms 400 KB Output is correct
14 Correct 777 ms 564 KB Output is correct
15 Correct 691 ms 652 KB Output is correct
16 Partially correct 476 ms 528 KB Partially correct
17 Correct 585 ms 512 KB Output is correct
18 Partially correct 530 ms 752 KB Partially correct
19 Partially correct 612 ms 744 KB Partially correct
20 Partially correct 574 ms 516 KB Partially correct
21 Correct 70 ms 528 KB Output is correct
22 Partially correct 76 ms 732 KB Partially correct
23 Partially correct 114 ms 732 KB Partially correct
24 Correct 7 ms 540 KB Output is correct
25 Correct 7 ms 464 KB Output is correct
26 Correct 6 ms 468 KB Output is correct
27 Correct 4 ms 632 KB Output is correct
28 Correct 2 ms 468 KB Output is correct
29 Correct 659 ms 400 KB Output is correct
30 Correct 623 ms 588 KB Output is correct
31 Correct 615 ms 516 KB Output is correct
32 Correct 475 ms 516 KB Output is correct
33 Correct 571 ms 516 KB Output is correct
34 Partially correct 423 ms 628 KB Partially correct
35 Partially correct 450 ms 636 KB Partially correct
36 Partially correct 448 ms 632 KB Partially correct
37 Partially correct 474 ms 548 KB Partially correct
38 Partially correct 498 ms 740 KB Partially correct
39 Partially correct 464 ms 752 KB Partially correct
40 Partially correct 440 ms 636 KB Partially correct
41 Partially correct 528 ms 636 KB Partially correct
42 Partially correct 69 ms 528 KB Partially correct
43 Partially correct 106 ms 556 KB Partially correct
44 Partially correct 149 ms 532 KB Partially correct
45 Partially correct 158 ms 528 KB Partially correct
46 Partially correct 317 ms 528 KB Partially correct
47 Partially correct 341 ms 528 KB Partially correct
48 Partially correct 65 ms 656 KB Partially correct
49 Partially correct 54 ms 840 KB Partially correct