CSES - NOI 2024

Submission details
Task:	Anime Shops
Sender:	Akseli Järvinen
Submission time:	2024-03-06 17:51:40 +0200
Language:	C++ (C++11)
Status:	READY
Result:	23

Feedback
group	verdict	score
#1	ACCEPTED	23
#2	RUNTIME ERROR	0
#3	RUNTIME ERROR	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	0.01 s	1, 3	details
#5	RUNTIME ERROR	0.00 s	3	details
#6	RUNTIME ERROR	0.00 s	3	details
#7	RUNTIME ERROR	0.00 s	3	details
#8	RUNTIME ERROR	0.04 s	3	details
#9	RUNTIME ERROR	0.01 s	2, 3	details
#10	RUNTIME ERROR	0.01 s	2, 3	details
#11	RUNTIME ERROR	0.04 s	2, 3	details
#12	RUNTIME ERROR	0.01 s	3	details
#13	RUNTIME ERROR	0.01 s	3	details
#14	RUNTIME ERROR	0.01 s	3	details
#15	RUNTIME ERROR	0.04 s	3	details
#16	RUNTIME ERROR	0.01 s	3	details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:78:18: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   78 |             auto [s,d] = q.front();
      |                  ^
input/code.cpp:31:10: warning: variable 'ok' set but not used [-Wunused-but-set-variable]
   31 |     bool ok = 1;
      |          ^~

Code

#include <bits/stdc++.h>
#define int long long
 
using namespace std;
 
const int mxN = 2222;
 
vector<int> adj[mxN];
bool shop[mxN];
 
signed main() {
    int n, m, k;
    cin >> n >> m >> k;
    
    for (int i = 0; i < k; ++i) {
        int ki;
        cin >> ki;
        shop[ki] = 1;
    }
    
    vector<int> deg(n+1,0);
    for (int i = 0; i < m; ++i) {
        int a, b;
        cin >> a >> b;
        adj[a].push_back(b);
        adj[b].push_back(a);
        ++deg[a];
        ++deg[b];
    }
 
    bool ok = 1;
    int c = 0;
    for (int i = 1; i <= n; ++i) {
        if (deg[i] == 1)
            ++c;
        else if (deg[i] > 2) {
            ok = 0;
            break;
        }
    }
    if (c == 2 && m == n-1) {
        set<int> ne, pre;
        for (int i = 1; i <= n; ++i) {
            if (shop[i]) {
                ne.insert(i);
                pre.insert(-i);
            }
        }
        for (int i = 1; i <= n; ++i) {
            auto it1 = ne.upper_bound(i);
            auto it2 = pre.upper_bound(-i);
            int ans = -1;
            if (it1 == ne.end() && it2 == pre.end()) {
                cout << -1 << ' ';
                continue;
            }
            if (it2 == pre.end()) {
                ans = abs(*it1-i);
            }
            else if (it1 == ne.end()) {
                ans = abs((-*it2)-i);
            }
            else {
                ans = min(abs(*it1-i),abs((-*it2)-i));
            }
            cout << ans << ' ';
        }
        cout << '\n';
        return 0;
    }
 
    for (int i = 1; i <= n; ++i) {
        queue<pair<int,int>> q;
        vector<int> vis(n+1,0);
        q.push({i,0});
        int ans = -1;
        while (q.size()) {
            auto [s,d] = q.front();
            if (d != 0 && shop[s]) {
                ans = d;
                break;
            }
            q.pop();
            vis[s] = 1;
            for (int u : adj[s]) {
                if (!vis[u]) {
                    q.push({u,d+1});
                }
            }
        }
        cout << ans << ' ';
    }
}

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: RUNTIME ERROR

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
(empty)

Test 6

Group: 3

Verdict: RUNTIME ERROR

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
(empty)

Test 7

Group: 3

Verdict: RUNTIME ERROR

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
(empty)

Test 8

Group: 3

Verdict: RUNTIME ERROR

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
(empty)

Test 9

Group: 2, 3

Verdict: RUNTIME ERROR

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

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

user output
(empty)

Test 10

Group: 2, 3

Verdict: RUNTIME ERROR

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
(empty)

Error:

terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc

Test 11

Group: 2, 3

Verdict: RUNTIME ERROR

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
(empty)

Error:

malloc(): unaligned tcache chunk detected

Test 12

Group: 3

Verdict: RUNTIME ERROR

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
(empty)

Test 13

Group: 3

Verdict: RUNTIME ERROR

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
(empty)

Test 14

Group: 3

Verdict: RUNTIME ERROR

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
(empty)

Test 15

Group: 3

Verdict: RUNTIME ERROR

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
(empty)

Error:

malloc(): unaligned tcache chunk detected

Test 16

Group: 3

Verdict: RUNTIME ERROR

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
(empty)

Error:

terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc

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 (Akseli Järvinen)