CSES - NOI 2024

CSES - NOI 2024 - Results

Submission details
Task:	Anime Shops
Sender:	Akseli Sahari
Submission time:	2024-03-06 18:46:24 +0200
Language:	C++ (C++11)
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	0.01 s	1, 3	details
#2	ACCEPTED	0.01 s	1, 3	details
#3	ACCEPTED	0.03 s	1, 3	details
#4	ACCEPTED	0.20 s	1, 3	details
#5	ACCEPTED	0.20 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	0.10 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;

int n, m, k;
int p[202020];
int z[202020];
int dist[202020];
vector<int> v[202020];
queue<int> q;
vector<int> f;
int e[202020];

int ans[202020];

int main(){
    cin >> n >> m >> k;
    for(int i = 0; i < k; i++){
        int x;
        cin >> x;
        f.push_back(x);
        p[x] = 1;
        z[x] = x;
        q.push(x);
    }
    for(int i = 0; i < m; i++){
        int a, b;
        cin >> a >> b;
        v[a].push_back(b);
        v[b].push_back(a);
    }

    if(n <= 1000){
        for(int i = 1; i<= n; i++) dist[i] = 1e9;
        queue<pair<int,int>> a;
        for(auto i : f){
            a.push({i, 0});
            e[i] = i;
            while(!a.empty()){
                int x = a.front().first; int s = a.front().second;
                a.pop();
                if(x != i) dist[x] = min(dist[x], s);
                e[x] = i;
                for(auto j : v[x]){
                    if(e[j] == i) continue;
                    a.push({j, s + 1});
                }
            }
        }
        for(int i = 1; i <= n; i++) cout << (dist[i] == 1e9 ? -1 : dist[i]) << " ";
        return 0;
    }
    while(!q.empty()){
        int x = q.front(); q.pop();
        for(auto i : v[x]){
            if(z[i]){
                if(z[x] == z[i]) continue;
                if(p[x] && p[i]) {
                    ans[x] = 1;
                    ans[i] = 1;
                    continue;
                } 
                if(p[i]){
                    if(!ans[i]) ans[i] = ans[x] + 1;
                    if(!ans[z[x]]) ans[z[x]] = ans[x] + 1;
                    continue;
                }
                if(p[x]){
                    if(!ans[x]) ans[x] = ans[i] + 1;
                    if(!ans[z[i]]) ans[z[i]] = ans[i] + 1;
                    continue;
                }
                if(!ans[z[x]]) ans[z[x]] = ans[x] + ans[i] + 1;
                if(!ans[z[i]]) ans[z[i]] = ans[x] + ans[i] + 1;
                continue;
            }
            z[i] = z[x];
            if(p[x]) ans[i] = 1;
            else ans[i] = ans[x] + 1;
            q.push(i);
        }
    }
    for(int i = 1; i <= n; i++) cout << (ans[i] ? ans[i] : -1) << " ";
    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: 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 (Akseli Sahari)