CSES - NOI 2024

Submission details
Task:	Anime Shops
Sender:	Erik Adebahr
Submission time:	2024-03-19 18:25:03 +0200
Language:	C++ (C++17)
Status:	READY
Result:	16

Feedback
group	verdict	score
#1	WRONG ANSWER	0
#2	ACCEPTED	16
#3	WRONG ANSWER	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.01 s	1, 3	details
#2	ACCEPTED	0.01 s	1, 3	details
#3	WRONG ANSWER	0.01 s	1, 3	details
#4	ACCEPTED	0.01 s	1, 3	details
#5	ACCEPTED	0.21 s	3	details
#6	WRONG ANSWER	0.21 s	3	details
#7	WRONG ANSWER	0.21 s	3	details
#8	ACCEPTED	0.24 s	3	details
#9	ACCEPTED	0.10 s	2, 3	details
#10	ACCEPTED	0.10 s	2, 3	details
#11	ACCEPTED	0.13 s	2, 3	details
#12	ACCEPTED	0.10 s	3	details
#13	ACCEPTED	0.09 s	3	details
#14	ACCEPTED	0.10 s	3	details
#15	ACCEPTED	0.05 s	3	details
#16	ACCEPTED	0.10 s	3	details

Code

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

typedef vector<ll> vl;
typedef vector<vl> vvl;

int main() {
  ll n, m, k;
  cin >> n >> m >> k;

  vl shops(k);
  for (int i = 0; i < k; i++) {
    ll tmp;
    cin >> tmp;
    shops[i] = --tmp;
  }

  vvl adj(n, vl());

  for (int i = 0; i < m; i++) {
    ll u, v;
    cin >> u >> v;

    adj[--u].push_back(--v);
    adj[v].push_back(u);
  }

  // BFS
  vl ans(n, -1);
  vl roots(n, -1);
  vl q;

  for (auto i : shops) {
    q.push_back(i);
  }

  for (auto i : shops)
    roots[i] = i;

  ll layer = 0;
  while (!q.empty()) {
    // cout << "New layer\n";
    layer++;
    vl nq;

    for (auto v : q) {
      for (auto w : adj[v]) {
        if (roots[w] == -1) {
          ans[w] = layer;
          roots[w] = roots[v];
          nq.push_back(w);
        } else if (roots[v] != roots[w]) {
          ll ansv = ans[v], answ = ans[w];

          if (v == roots[v]) {
            ansv = 0;
          }

          if (w == roots[w]) {
            answ = 0;
          }

          ans[v] = min(ansv + 1 + answ, ans[v]);
          ans[w] = min(ansv + 1 + answ, ans[w]);

          if (ans[roots[v]] == -1) {
            ans[roots[v]] = ansv + 1 + answ;
          }

          if (ans[roots[w]] == -1) {
            ans[roots[w]] = answ + 1 + ansv;
          }
        }
      }
    }
    q = nq;
  }

  // Display the answer

  for (auto i : ans) {
    cout << i << " ";
  }
  cout << endl;
}

Test details

Test 1

Group: 1, 3

Verdict: ACCEPTED

input
`1000 2000 1 816 1 868 976 995 377 536 ...` view save

correct output
`4 3 3 4 6 4 -1 4 5 2 2 5 5 3 5...` view save

user output
`4 3 3 4 6 4 -1 4 5 2 2 5 5 3 5...` Truncated

Test 2

Group: 1, 3

Verdict: ACCEPTED

input
`1000 2000 20 578 955 222 813 494 962 753 71...` view save

correct output
`5 6 4 3 4 2 -1 3 3 3 4 3 2 3 -...` view save

user output
`5 6 4 3 4 2 -1 3 3 3 4 3 2 3 -...` Truncated

Test 3

Group: 1, 3

Verdict: WRONG ANSWER

input
`1000 2000 100 945 230 119 680 975 520 490 28...` view save

correct output
`2 2 3 -1 2 -1 3 2 2 1 2 -1 3 2...` view save

user output
`2 2 3 -1 2 -1 3 2 2 1 2 -1 3 2...` Truncated

Test 4

Group: 1, 3

Verdict: ACCEPTED

input
`1000 2000 1000 150 443 960 545 218 487 896 38...` view save

correct output
`1 -1 1 1 -1 1 1 1 -1 1 1 1 -1 ...` view save

user output
`1 -1 1 1 -1 1 1 1 -1 1 1 1 -1 ...` Truncated

Test 5

Group: 3

Verdict: ACCEPTED

input
`100000 200000 1 77222 59470 61811 43092 48939 14395 19964 ...` view save

correct output
`8 10 8 8 8 8 8 8 9 7 7 8 8 8 6...` view save

user output
`8 10 8 8 8 8 8 8 9 7 7 8 8 8 6...` Truncated

Test 6

Group: 3

Verdict: WRONG ANSWER

input
`100000 200000 20 70440 82302 64483 96767 51485 ...` view save

correct output
`-1 8 6 5 5 7 6 7 6 6 8 5 6 4 5...` view save

user output
`-1 8 6 5 5 7 6 7 6 6 8 5 6 4 5...` Truncated

Test 7

Group: 3

Verdict: WRONG ANSWER

input
`100000 200000 100 68738 37820 55519 77758 46482 ...` view save

correct output
`4 5 5 5 5 4 6 -1 5 4 5 6 4 5 5...` view save

user output
`4 5 5 5 5 4 6 -1 5 4 5 6 4 5 5...` Truncated

Test 8

Group: 3

Verdict: ACCEPTED

input
`100000 200000 100000 47137 80137 73347 78145 9205 6...` view save

correct output
`1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...` view save

user output
`1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...` Truncated

Test 9

Group: 2, 3

Verdict: ACCEPTED

input
`100000 99999 1 44158 1 2 2 3 3 4 ...` view save

correct output
`44157 44156 44155 44154 44153 ...` view save

user output
`44157 44156 44155 44154 44153 ...` Truncated

Test 10

Group: 2, 3

Verdict: ACCEPTED

input
`100000 99999 20 44158 25720 84658 90057 99607 ...` view save

correct output
`361 360 359 358 357 356 355 35...` view save

user output
`361 360 359 358 357 356 355 35...` Truncated

Test 11

Group: 2, 3

Verdict: ACCEPTED

input
`100000 99999 100000 44158 25720 84658 90057 99607 ...` view save

correct output
`1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...` view save

user output
`1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...` Truncated

Test 12

Group: 3

Verdict: ACCEPTED

input
`100000 99999 3 99998 99999 100000 1 2 1 3 1 4 ...` view save

correct output
`33333 33332 33332 33332 33331 ...` view save

user output
`33333 33332 33332 33332 33331 ...` Truncated

Test 13

Group: 3

Verdict: ACCEPTED

input
`100000 99999 300 99701 99702 99703 99704 99705 ...` view save

correct output
`333 333 333 333 333 333 333 33...` view save

user output
`333 333 333 333 333 333 333 33...` Truncated

Test 14

Group: 3

Verdict: ACCEPTED

input
`100000 99999 30000 70001 70002 70003 70004 70005 ...` view save

correct output
`3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 ...` view save

user output
`3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 ...` Truncated

Test 15

Group: 3

Verdict: ACCEPTED

input
`100000 0 100000 1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

correct output
`-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 ...` view save

user output
`-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 ...` Truncated

Test 16

Group: 3

Verdict: ACCEPTED

input
`100000 100000 2 1 50001 1 2 2 3 3 4 ...` view save

correct output
`50000 1 2 3 4 5 6 7 8 9 10 11 ...` view save

user output
`50000 1 2 3 4 5 6 7 8 9 10 11 ...` Truncated

NOI 2024

Anime Shops

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Test 16

Tasks

Submissions (Erik Adebahr)