oj.uz

Submission #433399

# Submission time Handle Problem Language Result Execution time Memory
433399 2021-06-19T16:56:29 Z Enkognit Stations (IOI20_stations) C++14
100 / 100
 884 ms 864 KB 
#include <bits/stdc++.h>
#include "stations.h"
#include <vector>
#define ll long long
#define mp make_pair
#define pb push_back
#define fi first
#define se second

using namespace std;

vector<int> c[1005];
vector<int> vv;
ll T;

void dfs(int h,int k, int p)
{
    if (k%2==0) vv[h]=T++;
    for (int i = 0; i < c[h].size(); i++)
        if (c[h][i]!=p)
        {
            dfs(c[h][i], k+1, h);
        }
    if (k%2) vv[h]=T++;
}

std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {

	vector<int> f;

	vv.resize(n, 0);

	T=0;


	vector<pair<ll, ll> > ed;

	for (int i = 0; i < u.size(); i++)
    {
        ed.pb(mp(u[i], v[i]));
        c[u[i]].pb(v[i]);
        c[v[i]].pb(u[i]);
    }


    dfs(0, 0, 0);

    f.resize(n, 0);

    f=vv;

    vv.clear();

    //for (int i = 0; i < n; i++) cout << vv[i] << "\n";

    //for (int i = 0; i < ed.size(); i++)
    //    cout << vv[ed[i].fi] << " " << vv[ed[i].se] << "\n";

    //cout << "---\n";

	for (int i = 0; i < n; i++) c[i].clear();

	return f;
}

int find_next_station(int s, int t, std::vector<int> c)
{

    /*cout << c.size() << " : ";
    for (int i = 0; i < c.size(); i++)
        cout << c[i] << " ";
    cout << "\n";
    cout << s << "\n";*/

    if (s==t) return s;
    if (c.size()==1) return c[0];

    //cout << "\n";
    //assert((int)c.size()==0);

    if (s<c[0])
    {
        if (!(t>s && t<c.back())) return c.back();
        ll lst=s;
        for (int i = 0; i < c.size()-1; i++)
            if (t>lst && c[i]>=t) return c[i]; else lst=c[i];
        return c.back();
    }else
    {
        if (!(t<s && t>c[0])) return c[0];
        ll lst=s;
        for (int i = c.size()-1; i > 0; i--)
            if (t<lst && t>=c[i]) return c[i]; else lst=c[i];
        return c[0];
    }
    assert(0);
    return 1;
}
/*
1
5 10
0 1
1 2
1 3
2 4
2
2 0 2
1 3 3
*/

Compilation message

stations.cpp: In function 'void dfs(int, int, int)':
stations.cpp:19:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for (int i = 0; i < c[h].size(); i++)
      |                     ~~^~~~~~~~~~~~~
stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:38:20: 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 = 0; i < u.size(); i++)
      |                  ~~^~~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:85:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   85 |         for (int i = 0; i < c.size()-1; i++)
      |                         ~~^~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 564 ms 644 KB Output is correct
2 Correct 471 ms 648 KB Output is correct
3 Correct 855 ms 504 KB Output is correct
4 Correct 650 ms 512 KB Output is correct
5 Correct 629 ms 456 KB Output is correct
6 Correct 508 ms 616 KB Output is correct
7 Correct 484 ms 640 KB Output is correct
8 Correct 3 ms 480 KB Output is correct
9 Correct 5 ms 540 KB Output is correct
10 Correct 2 ms 468 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 450 ms 528 KB Output is correct
2 Correct 546 ms 584 KB Output is correct
3 Correct 884 ms 456 KB Output is correct
4 Correct 694 ms 508 KB Output is correct
5 Correct 591 ms 404 KB Output is correct
6 Correct 412 ms 528 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 537 ms 772 KB Output is correct
2 Correct 497 ms 636 KB Output is correct
3 Correct 872 ms 472 KB Output is correct
4 Correct 627 ms 400 KB Output is correct
5 Correct 576 ms 568 KB Output is correct
6 Correct 445 ms 712 KB Output is correct
7 Correct 460 ms 728 KB Output is correct
8 Correct 3 ms 468 KB Output is correct
9 Correct 5 ms 468 KB Output is correct
10 Correct 2 ms 552 KB Output is correct
11 Correct 666 ms 516 KB Output is correct
12 Correct 451 ms 736 KB Output is correct
13 Correct 457 ms 864 KB Output is correct
14 Correct 471 ms 528 KB Output is correct
15 Correct 56 ms 648 KB Output is correct
16 Correct 71 ms 528 KB Output is correct
17 Correct 125 ms 796 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 812 ms 400 KB Output is correct
2 Correct 699 ms 400 KB Output is correct
3 Correct 623 ms 508 KB Output is correct
4 Correct 3 ms 468 KB Output is correct
5 Correct 3 ms 468 KB Output is correct
6 Correct 0 ms 468 KB Output is correct
7 Correct 570 ms 400 KB Output is correct
8 Correct 876 ms 400 KB Output is correct
9 Correct 619 ms 508 KB Output is correct
10 Correct 575 ms 516 KB Output is correct
11 Correct 5 ms 468 KB Output is correct
12 Correct 5 ms 448 KB Output is correct
13 Correct 5 ms 468 KB Output is correct
14 Correct 4 ms 468 KB Output is correct
15 Correct 2 ms 476 KB Output is correct
16 Correct 494 ms 400 KB Output is correct
17 Correct 511 ms 400 KB Output is correct
18 Correct 491 ms 544 KB Output is correct
19 Correct 483 ms 508 KB Output is correct
20 Correct 510 ms 412 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 497 ms 636 KB Output is correct
2 Correct 452 ms 528 KB Output is correct
3 Correct 856 ms 400 KB Output is correct
4 Correct 610 ms 400 KB Output is correct
5 Correct 576 ms 528 KB Output is correct
6 Correct 459 ms 628 KB Output is correct
7 Correct 438 ms 496 KB Output is correct
8 Correct 3 ms 468 KB Output is correct
9 Correct 4 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 407 ms 540 KB Output is correct
12 Correct 512 ms 520 KB Output is correct
13 Correct 861 ms 528 KB Output is correct
14 Correct 614 ms 400 KB Output is correct
15 Correct 579 ms 512 KB Output is correct
16 Correct 437 ms 512 KB Output is correct
17 Correct 569 ms 516 KB Output is correct
18 Correct 453 ms 764 KB Output is correct
19 Correct 450 ms 632 KB Output is correct
20 Correct 409 ms 508 KB Output is correct
21 Correct 62 ms 528 KB Output is correct
22 Correct 67 ms 560 KB Output is correct
23 Correct 106 ms 528 KB Output is correct
24 Correct 6 ms 468 KB Output is correct
25 Correct 6 ms 472 KB Output is correct
26 Correct 6 ms 476 KB Output is correct
27 Correct 3 ms 476 KB Output is correct
28 Correct 2 ms 460 KB Output is correct
29 Correct 502 ms 404 KB Output is correct
30 Correct 505 ms 508 KB Output is correct
31 Correct 503 ms 528 KB Output is correct
32 Correct 492 ms 508 KB Output is correct
33 Correct 481 ms 400 KB Output is correct
34 Correct 324 ms 656 KB Output is correct
35 Correct 442 ms 648 KB Output is correct
36 Correct 436 ms 624 KB Output is correct
37 Correct 418 ms 628 KB Output is correct
38 Correct 453 ms 760 KB Output is correct
39 Correct 429 ms 640 KB Output is correct
40 Correct 464 ms 748 KB Output is correct
41 Correct 460 ms 636 KB Output is correct
42 Correct 64 ms 528 KB Output is correct
43 Correct 97 ms 556 KB Output is correct
44 Correct 121 ms 528 KB Output is correct
45 Correct 169 ms 528 KB Output is correct
46 Correct 334 ms 528 KB Output is correct
47 Correct 298 ms 512 KB Output is correct
48 Correct 54 ms 660 KB Output is correct
49 Correct 60 ms 780 KB Output is correct