CSES - NOI 2024

CSES - NOI 2024 - Results

Submission details
Task:	Anime Shops
Sender:	Måns Edvardsson
Submission time:	2024-03-06 16:14:53 +0200
Language:	C++ (C++11)
Status:	READY
Result:	100

Feedback
group	verdict	score
#1	ACCEPTED	23
#2	ACCEPTED	16
#3	ACCEPTED	61

Test results
test	verdict	time	group
#1	ACCEPTED	0.01 s	1, 3	details
#2	ACCEPTED	0.01 s	1, 3	details
#3	ACCEPTED	0.01 s	1, 3	details
#4	ACCEPTED	0.01 s	1, 3	details
#5	ACCEPTED	0.20 s	3	details
#6	ACCEPTED	0.20 s	3	details
#7	ACCEPTED	0.20 s	3	details
#8	ACCEPTED	0.23 s	3	details
#9	ACCEPTED	0.10 s	2, 3	details
#10	ACCEPTED	0.09 s	2, 3	details
#11	ACCEPTED	0.12 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

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:45:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |         for (int i = 0; i < layer.size(); i++) {
      |                         ~~^~~~~~~~~~~~~~
input/code.cpp:50:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |             for (int j = 0; j < connections[a].size(); j++) {
      |                             ~~^~~~~~~~~~~~~~~~~~~~~~~

Code

#include <bits/stdc++.h>
using namespace std;

int main() {

    int n, m, k;
    cin >> n >> m >> k;

    vector<bool> has_shop(n);
    for (int i = 0; i < k; i++) {
        int a;
        cin >> a;
        a--;
        has_shop[a] = true;
    }

    vector<vector<int>> connections(n);
    for (int i = 0; i < m; i++) {
        int a, b;
        cin >> a >> b;
        a--;
        b--;
        connections[a].push_back(b);
        connections[b].push_back(a);
    }

    vector<int> source(n, -1);
    vector<int> dist(n, -1);
    vector<int> layer = {};
    for (int i = 0; i < n; i++) {
        if (has_shop[i]) {
            layer.push_back(i);
            source[i] = i;
        }
    }

    int c = 0;
    vector<int> count(n);

    while (layer.size() > 0) {

        vector<int> new_layer = {};

        for (int i = 0; i < layer.size(); i++) {

            int a = layer[i];
            count[a] = c;

            for (int j = 0; j < connections[a].size(); j++) {

                int b = connections[a][j];

                if (source[b] == -1) {

                    new_layer.push_back(b);
                    source[b] = source[a];
                    dist[b] = c+1;

                } else if (source[b] != source[a]) {

                    int d1 = dist[a];
                    if (a == source[a]) {
                        d1 = 0;
                    }
                    int d2 = dist[b];
                    if (b == source[b]) {
                        d2 = 0;
                    }

                    if (dist[source[a]] == -1 || d1 + d2 + 1 < dist[source[a]]) {
                        dist[source[a]] = d1 + d2 + 1;
                    }
                    if (dist[source[b]] == -1 || d1 + d2 + 1 < dist[source[a]]) {
                        dist[source[b]] = d1 + d2 + 1;
                    }
                    
                }

            }

        }

        layer = new_layer;

        c++;

    }

    for (int i = 0; i < n; i++) {
        cout << dist[i];;
        if (i < n-1) {
            cout << " ";
        }
    }
    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: ACCEPTED

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: ACCEPTED

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: ACCEPTED

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

Compiler report

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 (Måns Edvardsson)