CSES - NOI 2024

CSES - NOI 2024 - Results

Submission details
Task:	Anime Shops
Sender:	Jonni Haapiainen
Submission time:	2024-03-06 16:44:32 +0200
Language:	C++ (C++20)
Status:	READY
Result:	39

Feedback
group	verdict	score
#1	ACCEPTED	23
#2	ACCEPTED	16
#3	WRONG ANSWER	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.03 s	1, 3	details
#2	ACCEPTED	0.01 s	1, 3	details
#3	ACCEPTED	0.01 s	1, 3	details
#4	ACCEPTED	0.00 s	1, 3	details
#5	ACCEPTED	0.11 s	3	details
#6	WRONG ANSWER	0.11 s	3	details
#7	WRONG ANSWER	0.11 s	3	details
#8	ACCEPTED	0.12 s	3	details
#9	ACCEPTED	0.05 s	2, 3	details
#10	ACCEPTED	0.05 s	2, 3	details
#11	ACCEPTED	0.06 s	2, 3	details
#12	ACCEPTED	0.05 s	3	details
#13	ACCEPTED	0.05 s	3	details
#14	ACCEPTED	0.05 s	3	details
#15	ACCEPTED	0.03 s	3	details
#16	ACCEPTED	0.05 s	3	details

Code

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

int n, m, k;

void solve(){
    queue<tuple<int, int, int>> q; // cur, start, len
    vector<vector<int>> v(n+1);
    vector<bool> marked(n+1);
    vector<int> ans(n+1, -1);
    vector<pair<int, int>> visited(n+1, make_pair(-1, -1)); // id, len
    for(int i = 0; i < k; i++){
        int x; cin >> x;
        marked[x] = true;
        q.push(make_tuple(x, x, 0));
        visited[x] = make_pair(x, 0);
    }
    for(int i = 0; i < m; i++){
        int a, b;
        cin >> a >> b;
        v[a].push_back(b);
        v[b].push_back(a);
    }
    while(q.size() > 0){
        auto[cur, start, len] = q.front(); q.pop();
        if(!marked[cur] || (marked[cur] && cur != start)) ans[cur] = len;
        for(int next : v[cur]){
            if(visited[next].first == -1){
                q.push(make_tuple(next, start, len+1));
                visited[next] = make_pair(start, len+1);
            }
            else if(ans[start] == -1 && visited[next].first != start){
                ans[start] = len + 1 + visited[next].second;
                if(ans[visited[next].first] == -1) ans[visited[next].first] = len + 1 + visited[next].second;
            }
        }
    }
    for(int i = 1; i <= n; i++) cout << ans[i] << " ";
    cout << endl;
}

void solve2(){
    vector<vector<int>> v(n+1);
    vector<bool> marked(n+1);
    vector<int> ans(n+1, -1);
    for(int i = 0; i < k; i++){
        int x; cin >> x;
        marked[x] = true;
    }
    for(int i = 0; i < m; i++){
        int a, b;
        cin >> a >> b;
        v[a].push_back(b);
        v[b].push_back(a);
    }
    for(int i = 1; i <= n; i++){
        vector<bool> visited(n+1);
        queue<pair<int, int>> q;
        q.push(make_pair(i, 0));
        visited[i] = true;
        while(q.size() > 0){
            auto[cur, len] = q.front(); q.pop();
            if(marked[cur] && cur != i){
                ans[i] = len;
                break;
            }
            for(int next : v[cur]){
                if(!visited[next]){
                    q.push(make_pair(next, len+1));
                    visited[next] = true;
                }
            }
        }
    }
    for(int i = 1; i <= n; i++) cout << ans[i] << " ";
    cout << endl;
}


int main(){
    cin.tie(0)->sync_with_stdio(0);
    cin >> n >> m >> k;
    if(n <= 1000) solve2();
    else solve();
    return 0;
}


/*
4 3 2
1 4
1 2
1 3
3 4


9 6 4
2 4 7 5
1 2
1 3
1 8
2 4
3 4
5 6

*/

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: 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 (Jonni Haapiainen)