#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
#define in(x) freopen(x, "r", stdin)
#define out(x) freopen(x, "w", stdout)
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-O3")
#define F first
#define S second
#define pb push_back
#define N +100500
#define M ll(1e9 + 7)
#define sz(x) (int)x.size()
#define re return
#define oo ll(1e9)
#define el '\n'
#define pii pair <int, int>
using namespace std;
//using namespace __gnu_pbds;
//typedef tree <int, null_type, less_equal <int> , rb_tree_tag, tree_order_statistics_node_update> ordered_set;
typedef long long ll;
typedef long double ld;
queue <int> q;
set <int> se;
int mp[N], mk[N], n, m, i, j, p, k, x, l, r, remain[N];
vector <int> g[N], G[N];
int main()
{
srand(time(0));
ios_base::sync_with_stdio(0);
iostream::sync_with_stdio(0);
ios::sync_with_stdio(0);
cin.tie(NULL);
cout.tie(NULL);
// in("input.txt");
// out("output.txt");
cin >> n >> m;
for (i = 1; i <= m; i++) cin >> x, mp[x] = 1;
cin >> k;
for (p = 1; p <= k; p++)
{
cin >> l >> r;
remain[p] = l;
for (i = 1; i <= l; i++)
{
cin >> x;
g[x].pb(p);
if (mp[x]) remain[p]--;
}
if (remain[p] == 0)
{
mk[p] = 1;
q.push(p);
}
for (i = 1; i <= r; i++)
{
cin >> x;
G[p].pb(x);
}
}
while (sz(q))
{
int p = q.front(); q.pop();
for (auto x : G[p])
{
if (mp[x]) continue;
mp[x] = 1;
for (auto qu : g[x])
{
remain[qu]--;
if (remain[qu] == 0 && !mk[qu])
{
mk[qu] = 1;
q.push(qu);
}
}
}
}
for (i = 1; i <= n; i++)
if (mp[i])
se.insert(i);
cout << sz(se) << el;
for (auto x : se) cout << x << " ";
}
/*
8 8
...).).*
*....)..
.)*(..).
(*)((...
.)).)(..
.)(.)..(
...).(.*
M.......
*/
//
//110000
//1100
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
5120 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
5120 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
5120 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
5248 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
5120 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
5120 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
21 ms |
6400 KB |
Output is correct |
2 |
Correct |
34 ms |
7800 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
76 ms |
9812 KB |
Output is correct |
2 |
Correct |
62 ms |
10360 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
74 ms |
11640 KB |
Output is correct |
2 |
Correct |
72 ms |
11384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
91 ms |
13176 KB |
Output is correct |
2 |
Correct |
76 ms |
11744 KB |
Output is correct |