oj.uz

Submission #592647

# Submission time Handle Problem Language Result Execution time Memory
592647 2022-07-09T12:02:49 Z PiejanVDC Stations (IOI20_stations) C++17
100 / 100
 996 ms 852 KB 
#include <bits/stdc++.h>
#include "stations.h"
using namespace std;
 
vector<int>adj[1005];

vector<int>l;

int curr = 0;

void dfs(int u, bool f, int e = -1) {
    if(f)
        l[u] = curr++;
    
    for(auto z : adj[u]) if(z != e) {
        dfs(z, 1 - f, u);
    }

    if(!f)
        l[u] = curr++;
}

vector<int>label(int n, int k, vector<int>u, vector<int>v) {
    l.resize(n, -1);
    curr = 0;
    for(int i = 0 ; i < n ; i++)
        adj[i].clear();

    for(int i = 0 ; i < (int)u.size() ; i++) {
        adj[u[i]].push_back(v[i]);
        adj[v[i]].push_back(u[i]);
    }

    dfs(0, 1);

    for(auto z : l)
        assert(z != -1);

    return l;
}

int find_next_station(int s, int t, vector<int>c) {
    if(c.size() == 1)
        return c[0];

    if(s == 0) {
        for(int i = 0 ; i < c.size() ; i++) {
            if(t >= s && t <= c[i])
                return c[i];
        }
    }

    if(s < c[0]) {
        
        if(t <= c.back() && t <= s)
            return c.back();
        if(t >= c.back() && t >= s)
            return c.back();
        
        for(int i = 0 ; i < c.size()-1 ; i++) {
            if(t >= s && t <= c[i])
                return c[i];
        }
    } else {

        if(t <= c[0] && t <= s)
            return c[0];
        if(t >= c[0] && t >= s)
            return c[0];
    
        for(int i = c.size()-1 ; i > 0 ; i--) {
            if(t <= s && t >= c[i])
                return c[i];
        }
    }
}

Compilation message

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:47:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |         for(int i = 0 ; i < c.size() ; i++) {
      |                         ~~^~~~~~~~~~
stations.cpp:60:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |         for(int i = 0 ; i < c.size()-1 ; i++) {
      |                         ~~^~~~~~~~~~~~
stations.cpp:76:1: warning: control reaches end of non-void function [-Wreturn-type]
   76 | }
      | ^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 527 ms 548 KB Output is correct
2 Correct 492 ms 668 KB Output is correct
3 Correct 778 ms 532 KB Output is correct
4 Correct 555 ms 416 KB Output is correct
5 Correct 667 ms 484 KB Output is correct
6 Correct 461 ms 656 KB Output is correct
7 Correct 442 ms 524 KB Output is correct
8 Correct 2 ms 492 KB Output is correct
9 Correct 5 ms 492 KB Output is correct
10 Correct 1 ms 492 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 455 ms 588 KB Output is correct
2 Correct 550 ms 528 KB Output is correct
3 Correct 815 ms 416 KB Output is correct
4 Correct 728 ms 420 KB Output is correct
5 Correct 593 ms 528 KB Output is correct
6 Correct 433 ms 544 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 601 ms 676 KB Output is correct
2 Correct 427 ms 656 KB Output is correct
3 Correct 800 ms 528 KB Output is correct
4 Correct 617 ms 592 KB Output is correct
5 Correct 569 ms 528 KB Output is correct
6 Correct 427 ms 524 KB Output is correct
7 Correct 427 ms 516 KB Output is correct
8 Correct 2 ms 492 KB Output is correct
9 Correct 3 ms 492 KB Output is correct
10 Correct 0 ms 492 KB Output is correct
11 Correct 520 ms 532 KB Output is correct
12 Correct 455 ms 764 KB Output is correct
13 Correct 449 ms 624 KB Output is correct
14 Correct 427 ms 548 KB Output is correct
15 Correct 50 ms 600 KB Output is correct
16 Correct 59 ms 572 KB Output is correct
17 Correct 92 ms 548 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 839 ms 528 KB Output is correct
2 Correct 617 ms 420 KB Output is correct
3 Correct 706 ms 640 KB Output is correct
4 Correct 2 ms 492 KB Output is correct
5 Correct 3 ms 496 KB Output is correct
6 Correct 1 ms 500 KB Output is correct
7 Correct 605 ms 416 KB Output is correct
8 Correct 996 ms 416 KB Output is correct
9 Correct 600 ms 532 KB Output is correct
10 Correct 657 ms 524 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 7 ms 480 KB Output is correct
13 Correct 5 ms 492 KB Output is correct
14 Correct 4 ms 492 KB Output is correct
15 Correct 2 ms 492 KB Output is correct
16 Correct 648 ms 416 KB Output is correct
17 Correct 483 ms 524 KB Output is correct
18 Correct 639 ms 420 KB Output is correct
19 Correct 498 ms 528 KB Output is correct
20 Correct 447 ms 516 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 435 ms 656 KB Output is correct
2 Correct 428 ms 688 KB Output is correct
3 Correct 859 ms 416 KB Output is correct
4 Correct 622 ms 420 KB Output is correct
5 Correct 501 ms 556 KB Output is correct
6 Correct 435 ms 540 KB Output is correct
7 Correct 398 ms 524 KB Output is correct
8 Correct 2 ms 496 KB Output is correct
9 Correct 4 ms 492 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 492 ms 524 KB Output is correct
12 Correct 541 ms 520 KB Output is correct
13 Correct 777 ms 416 KB Output is correct
14 Correct 659 ms 524 KB Output is correct
15 Correct 584 ms 416 KB Output is correct
16 Correct 458 ms 532 KB Output is correct
17 Correct 572 ms 416 KB Output is correct
18 Correct 436 ms 628 KB Output is correct
19 Correct 427 ms 788 KB Output is correct
20 Correct 450 ms 552 KB Output is correct
21 Correct 50 ms 572 KB Output is correct
22 Correct 58 ms 572 KB Output is correct
23 Correct 104 ms 544 KB Output is correct
24 Correct 4 ms 492 KB Output is correct
25 Correct 4 ms 500 KB Output is correct
26 Correct 3 ms 492 KB Output is correct
27 Correct 3 ms 556 KB Output is correct
28 Correct 1 ms 492 KB Output is correct
29 Correct 556 ms 524 KB Output is correct
30 Correct 520 ms 532 KB Output is correct
31 Correct 439 ms 416 KB Output is correct
32 Correct 407 ms 416 KB Output is correct
33 Correct 464 ms 528 KB Output is correct
34 Correct 308 ms 548 KB Output is correct
35 Correct 421 ms 656 KB Output is correct
36 Correct 473 ms 740 KB Output is correct
37 Correct 529 ms 656 KB Output is correct
38 Correct 459 ms 648 KB Output is correct
39 Correct 414 ms 852 KB Output is correct
40 Correct 319 ms 652 KB Output is correct
41 Correct 402 ms 632 KB Output is correct
42 Correct 51 ms 692 KB Output is correct
43 Correct 102 ms 656 KB Output is correct
44 Correct 130 ms 536 KB Output is correct
45 Correct 131 ms 524 KB Output is correct
46 Correct 264 ms 548 KB Output is correct
47 Correct 322 ms 624 KB Output is correct
48 Correct 51 ms 748 KB Output is correct
49 Correct 55 ms 700 KB Output is correct