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Submission #675940

# Submission time Handle Problem Language Result Execution time Memory
675940 2022-12-28T12:41:44 Z Essa2006 Stations (IOI20_stations) C++14
100 / 100
 949 ms 812 KB 
#include<bits/stdc++.h>
using namespace std;
#define all(a) a.begin(), a.end()
vector<int>Vis, new_;
vector<vector<int>>A;
bool even;
int time_;
void dfs(int ind){
    Vis[ind]=1;
    bool odd=!even;
    if(!odd) new_[ind]=time_++;
    for(int i=0;i<A[ind].size();i++)
        if(!Vis[A[ind][i]]){
            even=odd;
            dfs(A[ind][i]);
        }
    if(odd) new_[ind]=time_++;
}
vector<int> label(int n, int k, vector<int> u, vector<int> v) {
    Vis.clear(), A.clear(), new_.clear();
    Vis.resize(n), A.resize(n), new_.resize(n);
    time_=0, even=1;
    for(int i=0;i<n-1;i++)
        A[u[i]].push_back(v[i]), A[v[i]].push_back(u[i]);
    dfs(0);
    return new_;
}
int find_next_station(int s, int t, vector<int> c) {
    if(s<c[0]){
        if(t<s || t>=c.back()) return c.back();
        return *lower_bound(all(c), t);
    }
    else{
        if(t>s || t<=c.front()) return c.front();
        return *--upper_bound(all(c), t);
    }
}

Compilation message

stations.cpp: In function 'void dfs(int)':
stations.cpp:12:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |     for(int i=0;i<A[ind].size();i++)
      |                 ~^~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 485 ms 632 KB Output is correct
2 Correct 455 ms 628 KB Output is correct
3 Correct 949 ms 488 KB Output is correct
4 Correct 733 ms 500 KB Output is correct
5 Correct 606 ms 488 KB Output is correct
6 Correct 469 ms 488 KB Output is correct
7 Correct 413 ms 548 KB Output is correct
8 Correct 2 ms 492 KB Output is correct
9 Correct 4 ms 492 KB Output is correct
10 Correct 1 ms 500 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 426 ms 628 KB Output is correct
2 Correct 576 ms 512 KB Output is correct
3 Correct 880 ms 416 KB Output is correct
4 Correct 550 ms 420 KB Output is correct
5 Correct 509 ms 508 KB Output is correct
6 Correct 455 ms 500 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 517 ms 676 KB Output is correct
2 Correct 431 ms 628 KB Output is correct
3 Correct 918 ms 492 KB Output is correct
4 Correct 671 ms 420 KB Output is correct
5 Correct 502 ms 504 KB Output is correct
6 Correct 449 ms 544 KB Output is correct
7 Correct 445 ms 544 KB Output is correct
8 Correct 3 ms 492 KB Output is correct
9 Correct 5 ms 492 KB Output is correct
10 Correct 2 ms 492 KB Output is correct
11 Correct 552 ms 548 KB Output is correct
12 Correct 380 ms 620 KB Output is correct
13 Correct 449 ms 672 KB Output is correct
14 Correct 463 ms 548 KB Output is correct
15 Correct 37 ms 420 KB Output is correct
16 Correct 48 ms 544 KB Output is correct
17 Correct 103 ms 548 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 835 ms 508 KB Output is correct
2 Correct 599 ms 416 KB Output is correct
3 Correct 513 ms 416 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 4 ms 500 KB Output is correct
6 Correct 2 ms 496 KB Output is correct
7 Correct 482 ms 504 KB Output is correct
8 Correct 819 ms 420 KB Output is correct
9 Correct 612 ms 508 KB Output is correct
10 Correct 554 ms 508 KB Output is correct
11 Correct 4 ms 500 KB Output is correct
12 Correct 4 ms 492 KB Output is correct
13 Correct 5 ms 492 KB Output is correct
14 Correct 2 ms 492 KB Output is correct
15 Correct 1 ms 500 KB Output is correct
16 Correct 506 ms 420 KB Output is correct
17 Correct 506 ms 420 KB Output is correct
18 Correct 399 ms 420 KB Output is correct
19 Correct 484 ms 504 KB Output is correct
20 Correct 528 ms 560 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 511 ms 648 KB Output is correct
2 Correct 432 ms 632 KB Output is correct
3 Correct 867 ms 420 KB Output is correct
4 Correct 596 ms 416 KB Output is correct
5 Correct 585 ms 420 KB Output is correct
6 Correct 390 ms 500 KB Output is correct
7 Correct 417 ms 508 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 4 ms 492 KB Output is correct
10 Correct 0 ms 492 KB Output is correct
11 Correct 388 ms 620 KB Output is correct
12 Correct 517 ms 504 KB Output is correct
13 Correct 877 ms 500 KB Output is correct
14 Correct 601 ms 416 KB Output is correct
15 Correct 406 ms 572 KB Output is correct
16 Correct 465 ms 508 KB Output is correct
17 Correct 607 ms 420 KB Output is correct
18 Correct 486 ms 616 KB Output is correct
19 Correct 507 ms 692 KB Output is correct
20 Correct 538 ms 556 KB Output is correct
21 Correct 53 ms 604 KB Output is correct
22 Correct 84 ms 528 KB Output is correct
23 Correct 120 ms 500 KB Output is correct
24 Correct 8 ms 600 KB Output is correct
25 Correct 5 ms 492 KB Output is correct
26 Correct 4 ms 492 KB Output is correct
27 Correct 5 ms 500 KB Output is correct
28 Correct 2 ms 492 KB Output is correct
29 Correct 674 ms 504 KB Output is correct
30 Correct 522 ms 420 KB Output is correct
31 Correct 489 ms 420 KB Output is correct
32 Correct 537 ms 572 KB Output is correct
33 Correct 580 ms 620 KB Output is correct
34 Correct 320 ms 624 KB Output is correct
35 Correct 398 ms 724 KB Output is correct
36 Correct 384 ms 716 KB Output is correct
37 Correct 456 ms 684 KB Output is correct
38 Correct 464 ms 712 KB Output is correct
39 Correct 453 ms 640 KB Output is correct
40 Correct 447 ms 812 KB Output is correct
41 Correct 397 ms 752 KB Output is correct
42 Correct 57 ms 692 KB Output is correct
43 Correct 81 ms 568 KB Output is correct
44 Correct 126 ms 572 KB Output is correct
45 Correct 174 ms 548 KB Output is correct
46 Correct 325 ms 652 KB Output is correct
47 Correct 285 ms 548 KB Output is correct
48 Correct 52 ms 712 KB Output is correct
49 Correct 75 ms 720 KB Output is correct