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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#516509 | #7738. Equivalent Rewriting | learn_cute | WA | 12ms | 99880kb | C++14 | 1.6kb | 2024-08-12 17:42:01 | 2024-08-12 17:42:01 |
Judging History
answer
#include <bits/stdc++.h>
#define endl "\n"
using namespace std;
using LL = long long;
using PII = pair<int, int>;
const int N = 2e6 + 10;
int idx;
int deg[N];
vector<int> G[N], H[N];
int ans[N], a[N];
void solve() {
int n, m;
cin >> n >> m;
for (int i = 0; i <= max(n, m) + 10; i++)
H[i].clear(), G[i].clear(), deg[i] = 0;
idx = 0;
for (int i = 1; i <= n; i++) {
int x;
cin >> x;
for (int j = 1; j <= x; j++) {
int u;
cin >> u;
G[u].push_back(i);
}
}
for (int i = 1; i <= m; i++) {
if (G[i].empty())
continue;
int lst = G[i].back();
for (auto v : G[i]) {
if (v != lst) {
H[v].push_back(lst);
deg[lst]++;
}
}
}
priority_queue<int> q;
for (int i = 1; i <= n; i++)
if (!deg[i])
q.push(i);
while (!q.empty()) {
int u = q.top();
q.pop();
ans[++idx] = u;
for (auto v : H[u]) {
deg[v]--;
if (!deg[v])
q.push(v);
}
}
for (int i = 1; i <= n; i++) {
if (ans[i] == i) {
cout << "No\n";
return;
}
}
assert(idx == n);
cout << "Yes\n";
for (int i = 1; i <= n; i++)
cout << ans[i] << " ";
cout << endl;
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr), cout.tie(nullptr);
int tt; // read(tt);
cin >> tt;
while (tt--) {
solve();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 12ms
memory: 99880kb
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: 8ms
memory: 99792kb
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)