QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#267372#7738. Equivalent Rewritingtonylin1026WA 0ms3840kbC++231.4kb2023-11-27 10:43:432023-11-27 10:43:44

Judging History

你现在查看的是最新测评结果

  • [2023-11-27 10:43:44]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:3840kb
  • [2023-11-27 10:43:43]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

void solve() {
    int n, m;
    cin >> n >> m;
    vector<int> now(m + 1), ind(n + 1);
    vector<set<int, greater<int>>> to(n + 1);
    for (int i = 1; i <= n; i++) {
        int p;
        cin >> p;
        for (int j = 1; j <= p; j++) {
            int x;
            cin >> x;
            if (now[x] && to[now[x]].find(i) == to[now[x]].end()) {
                to[now[x]].insert(i);
                ind[i]++;
            }
            now[x] = i;
        }
    }
    vector<int> ans;
    queue<int> q;
    for (int i = n; i >= 1; i--) {
        if (ind[i] == 0) {
            q.push(i);
        }
    }
    while (!q.empty()) {
        int now = q.front();
        q.pop();
        ans.push_back(now);
        for (auto it : to[now]) {
            ind[it]--;
            if (ind[it] == 0) {
                q.push(it);
            }
        }
    }
    bool check = 0;
    for (int i = 0; i < n; i++) {
        if (ans[i] != i + 1) {
            check = 1;
            break;
        }
    }
    if (check) {
        cout << "Yes\n";
        for (int i = 0; i < n; i++) {
            cout << ans[i] << " \n"[i + 1 == n];
        }
    } else
        cout << "No\n";
    return;
}
int main() {
    int t;
    cin >> t;
    while (t--) {
        solve();
    }
    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3604kb

input:

3
3 6
3 3 1 5
2 5 3
2 2 6
2 3
3 1 3 2
2 3 1
1 3
2 2 1

output:

Yes
3 1 2
No
No

result:

ok OK. (3 test cases)

Test #2:

score: -100
Wrong Answer
time: 0ms
memory: 3840kb

input:

1
10 5
2 2 4
4 1 3 4 2
1 2
3 2 1 4
4 5 2 4 3
3 2 5 4
3 5 4 2
3 1 3 2
5 1 4 2 3 5
1 4

output:

No

result:

wrong answer jury found an answer but participant did not (test case 1)