#include<bits/stdc++.h>
using namespace std;
const long long inf = (long long) 1e18 + 10;
const int inf1 = (int) 1e9 + 10;
#define int long long
#define dbl long double
#define endl '\n'
#define sc second
#define fr first
#define mp make_pair
#define pb push_back
#define all(x) x.begin(), x.end()
const int maxn = 5e4+10;
int n, k, gr[maxn];
vector<int> g[maxn];
set<int> stg[maxn];
void solve() {
cin >> n >> k;
int ans = 1;
for(int i = 0; i < n; i++) {
int d; cin >> d;
gr[i] = d;
if(d != 0) ans = 2;
while(d--) {
int x; cin >> x;
stg[i].insert(x);
g[i].pb(x);
}
}
set<pair<int,int>> st;
for(int i = 0; i < n; i++) {
st.insert(mp(gr[i],i));
}
while(st.size()) {
int u = st.begin()->sc;
st.erase(st.begin());
bool ok = true;
for(auto v1 : stg[u]) {
for(auto v2 : stg[u]) {
if(v1 != v2 && stg[v1].count(v2) == 0) ok = false;
}
}
if(ok) ans = max(ans, gr[u]+1);
for(auto v : stg[u]) {
stg[v].erase(u);
st.erase(mp(gr[v],v));
--gr[v];
st.insert(mp(gr[v],v));
}
}
cout << ans << endl;
}
int32_t main() {
ios::sync_with_stdio(false); cin.tie(0);
// freopen("in.in", "r", stdin);
// freopen("out.out", "w", stdout);
int tt = 1;
// cin >> tt;
while(tt--) {
solve();
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
3796 KB |
Output is correct |
2 |
Correct |
2 ms |
3796 KB |
Output is correct |
3 |
Correct |
7 ms |
4820 KB |
Output is correct |
4 |
Correct |
7 ms |
4820 KB |
Output is correct |
5 |
Correct |
7 ms |
4820 KB |
Output is correct |
6 |
Correct |
9 ms |
4956 KB |
Output is correct |
7 |
Correct |
7 ms |
4948 KB |
Output is correct |
8 |
Correct |
4 ms |
4180 KB |
Output is correct |
9 |
Correct |
3 ms |
3796 KB |
Output is correct |
10 |
Correct |
3 ms |
4180 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
3796 KB |
Output is correct |
2 |
Correct |
2 ms |
3796 KB |
Output is correct |
3 |
Correct |
7 ms |
4820 KB |
Output is correct |
4 |
Correct |
7 ms |
4820 KB |
Output is correct |
5 |
Correct |
7 ms |
4820 KB |
Output is correct |
6 |
Correct |
9 ms |
4956 KB |
Output is correct |
7 |
Correct |
7 ms |
4948 KB |
Output is correct |
8 |
Correct |
4 ms |
4180 KB |
Output is correct |
9 |
Correct |
3 ms |
3796 KB |
Output is correct |
10 |
Correct |
3 ms |
4180 KB |
Output is correct |
11 |
Correct |
6 ms |
4820 KB |
Output is correct |
12 |
Correct |
6 ms |
4820 KB |
Output is correct |
13 |
Correct |
2 ms |
3796 KB |
Output is correct |
14 |
Correct |
7 ms |
4888 KB |
Output is correct |
15 |
Correct |
2 ms |
3796 KB |
Output is correct |
16 |
Correct |
7 ms |
4948 KB |
Output is correct |
17 |
Correct |
2 ms |
3796 KB |
Output is correct |
18 |
Correct |
7 ms |
4952 KB |
Output is correct |
19 |
Correct |
4 ms |
4112 KB |
Output is correct |
20 |
Correct |
5 ms |
4628 KB |
Output is correct |
21 |
Correct |
6 ms |
4564 KB |
Output is correct |
22 |
Correct |
3 ms |
4180 KB |
Output is correct |
23 |
Correct |
8 ms |
5040 KB |
Output is correct |
24 |
Correct |
3 ms |
4180 KB |
Output is correct |
25 |
Correct |
7 ms |
4948 KB |
Output is correct |
26 |
Correct |
7 ms |
4904 KB |
Output is correct |
27 |
Correct |
6 ms |
4820 KB |
Output is correct |
28 |
Correct |
7 ms |
4880 KB |
Output is correct |
29 |
Correct |
6 ms |
4888 KB |
Output is correct |
30 |
Correct |
10 ms |
5008 KB |
Output is correct |
31 |
Correct |
8 ms |
5076 KB |
Output is correct |
32 |
Correct |
8 ms |
5108 KB |
Output is correct |
33 |
Correct |
8 ms |
5076 KB |
Output is correct |
34 |
Correct |
8 ms |
5012 KB |
Output is correct |
35 |
Correct |
5 ms |
4436 KB |
Output is correct |
36 |
Correct |
5 ms |
4364 KB |
Output is correct |
37 |
Correct |
5 ms |
4368 KB |
Output is correct |
38 |
Correct |
4 ms |
4180 KB |
Output is correct |
39 |
Correct |
4 ms |
4180 KB |
Output is correct |
40 |
Correct |
13 ms |
5460 KB |
Output is correct |
41 |
Correct |
5 ms |
4240 KB |
Output is correct |
42 |
Correct |
12 ms |
5516 KB |
Output is correct |
43 |
Correct |
12 ms |
5460 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
4104 KB |
Output is correct |
2 |
Correct |
3 ms |
3852 KB |
Output is correct |
3 |
Correct |
2 ms |
3796 KB |
Output is correct |
4 |
Correct |
3 ms |
3796 KB |
Output is correct |
5 |
Correct |
2 ms |
3796 KB |
Output is correct |
6 |
Correct |
2 ms |
3796 KB |
Output is correct |
7 |
Correct |
2 ms |
3844 KB |
Output is correct |
8 |
Correct |
2 ms |
3796 KB |
Output is correct |
9 |
Correct |
2 ms |
3796 KB |
Output is correct |
10 |
Correct |
3 ms |
3796 KB |
Output is correct |
11 |
Correct |
319 ms |
38256 KB |
Output is correct |
12 |
Correct |
2 ms |
3796 KB |
Output is correct |
13 |
Correct |
318 ms |
38152 KB |
Output is correct |
14 |
Correct |
2 ms |
3796 KB |
Output is correct |
15 |
Correct |
323 ms |
38080 KB |
Output is correct |
16 |
Correct |
326 ms |
38172 KB |
Output is correct |
17 |
Correct |
302 ms |
38168 KB |
Output is correct |
18 |
Correct |
345 ms |
38116 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
3796 KB |
Output is correct |
2 |
Correct |
2 ms |
3796 KB |
Output is correct |
3 |
Correct |
7 ms |
4820 KB |
Output is correct |
4 |
Correct |
7 ms |
4820 KB |
Output is correct |
5 |
Correct |
7 ms |
4820 KB |
Output is correct |
6 |
Correct |
9 ms |
4956 KB |
Output is correct |
7 |
Correct |
7 ms |
4948 KB |
Output is correct |
8 |
Correct |
4 ms |
4180 KB |
Output is correct |
9 |
Correct |
3 ms |
3796 KB |
Output is correct |
10 |
Correct |
3 ms |
4180 KB |
Output is correct |
11 |
Correct |
6 ms |
4820 KB |
Output is correct |
12 |
Correct |
6 ms |
4820 KB |
Output is correct |
13 |
Correct |
2 ms |
3796 KB |
Output is correct |
14 |
Correct |
7 ms |
4888 KB |
Output is correct |
15 |
Correct |
2 ms |
3796 KB |
Output is correct |
16 |
Correct |
7 ms |
4948 KB |
Output is correct |
17 |
Correct |
2 ms |
3796 KB |
Output is correct |
18 |
Correct |
7 ms |
4952 KB |
Output is correct |
19 |
Correct |
4 ms |
4112 KB |
Output is correct |
20 |
Correct |
5 ms |
4628 KB |
Output is correct |
21 |
Correct |
6 ms |
4564 KB |
Output is correct |
22 |
Correct |
3 ms |
4180 KB |
Output is correct |
23 |
Correct |
8 ms |
5040 KB |
Output is correct |
24 |
Correct |
3 ms |
4180 KB |
Output is correct |
25 |
Correct |
7 ms |
4948 KB |
Output is correct |
26 |
Correct |
7 ms |
4904 KB |
Output is correct |
27 |
Correct |
6 ms |
4820 KB |
Output is correct |
28 |
Correct |
7 ms |
4880 KB |
Output is correct |
29 |
Correct |
6 ms |
4888 KB |
Output is correct |
30 |
Correct |
10 ms |
5008 KB |
Output is correct |
31 |
Correct |
8 ms |
5076 KB |
Output is correct |
32 |
Correct |
8 ms |
5108 KB |
Output is correct |
33 |
Correct |
8 ms |
5076 KB |
Output is correct |
34 |
Correct |
8 ms |
5012 KB |
Output is correct |
35 |
Correct |
5 ms |
4436 KB |
Output is correct |
36 |
Correct |
5 ms |
4364 KB |
Output is correct |
37 |
Correct |
5 ms |
4368 KB |
Output is correct |
38 |
Correct |
4 ms |
4180 KB |
Output is correct |
39 |
Correct |
4 ms |
4180 KB |
Output is correct |
40 |
Correct |
13 ms |
5460 KB |
Output is correct |
41 |
Correct |
5 ms |
4240 KB |
Output is correct |
42 |
Correct |
12 ms |
5516 KB |
Output is correct |
43 |
Correct |
12 ms |
5460 KB |
Output is correct |
44 |
Correct |
16 ms |
6612 KB |
Output is correct |
45 |
Correct |
2 ms |
3796 KB |
Output is correct |
46 |
Correct |
11 ms |
5524 KB |
Output is correct |
47 |
Correct |
21 ms |
6744 KB |
Output is correct |
48 |
Correct |
11 ms |
5508 KB |
Output is correct |
49 |
Correct |
22 ms |
6740 KB |
Output is correct |
50 |
Correct |
27 ms |
6788 KB |
Output is correct |
51 |
Correct |
47 ms |
9280 KB |
Output is correct |
52 |
Correct |
6 ms |
4884 KB |
Output is correct |
53 |
Correct |
42 ms |
9920 KB |
Output is correct |
54 |
Correct |
54 ms |
9828 KB |
Output is correct |
55 |
Correct |
6 ms |
4948 KB |
Output is correct |
56 |
Correct |
7 ms |
4928 KB |
Output is correct |
57 |
Correct |
3 ms |
4168 KB |
Output is correct |
58 |
Correct |
41 ms |
9880 KB |
Output is correct |
59 |
Correct |
9 ms |
5460 KB |
Output is correct |
60 |
Correct |
9 ms |
4884 KB |
Output is correct |
61 |
Correct |
9 ms |
5472 KB |
Output is correct |
62 |
Correct |
8 ms |
5396 KB |
Output is correct |
63 |
Correct |
17 ms |
6672 KB |
Output is correct |
64 |
Correct |
16 ms |
6416 KB |
Output is correct |
65 |
Correct |
10 ms |
5368 KB |
Output is correct |
66 |
Correct |
10 ms |
5396 KB |
Output is correct |
67 |
Correct |
25 ms |
7252 KB |
Output is correct |
68 |
Correct |
15 ms |
6356 KB |
Output is correct |
69 |
Correct |
10 ms |
5264 KB |
Output is correct |
70 |
Correct |
25 ms |
6484 KB |
Output is correct |
71 |
Correct |
26 ms |
7220 KB |
Output is correct |
72 |
Correct |
26 ms |
7056 KB |
Output is correct |
73 |
Correct |
6 ms |
4880 KB |
Output is correct |
74 |
Correct |
19 ms |
6484 KB |
Output is correct |
75 |
Correct |
24 ms |
7128 KB |
Output is correct |
76 |
Correct |
15 ms |
5860 KB |
Output is correct |
77 |
Correct |
32 ms |
7828 KB |
Output is correct |
78 |
Correct |
7 ms |
4884 KB |
Output is correct |
79 |
Correct |
20 ms |
5844 KB |
Output is correct |
80 |
Correct |
14 ms |
5844 KB |
Output is correct |
81 |
Correct |
31 ms |
7816 KB |
Output is correct |
82 |
Correct |
4 ms |
4240 KB |
Output is correct |
83 |
Correct |
18 ms |
5888 KB |
Output is correct |
84 |
Correct |
25 ms |
7124 KB |
Output is correct |
85 |
Correct |
4 ms |
4180 KB |
Output is correct |
86 |
Incorrect |
24 ms |
7124 KB |
Output isn't correct |
87 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
3796 KB |
Output is correct |
2 |
Correct |
2 ms |
3796 KB |
Output is correct |
3 |
Correct |
7 ms |
4820 KB |
Output is correct |
4 |
Correct |
7 ms |
4820 KB |
Output is correct |
5 |
Correct |
7 ms |
4820 KB |
Output is correct |
6 |
Correct |
9 ms |
4956 KB |
Output is correct |
7 |
Correct |
7 ms |
4948 KB |
Output is correct |
8 |
Correct |
4 ms |
4180 KB |
Output is correct |
9 |
Correct |
3 ms |
3796 KB |
Output is correct |
10 |
Correct |
3 ms |
4180 KB |
Output is correct |
11 |
Correct |
6 ms |
4820 KB |
Output is correct |
12 |
Correct |
6 ms |
4820 KB |
Output is correct |
13 |
Correct |
2 ms |
3796 KB |
Output is correct |
14 |
Correct |
7 ms |
4888 KB |
Output is correct |
15 |
Correct |
2 ms |
3796 KB |
Output is correct |
16 |
Correct |
7 ms |
4948 KB |
Output is correct |
17 |
Correct |
2 ms |
3796 KB |
Output is correct |
18 |
Correct |
7 ms |
4952 KB |
Output is correct |
19 |
Correct |
4 ms |
4112 KB |
Output is correct |
20 |
Correct |
5 ms |
4628 KB |
Output is correct |
21 |
Correct |
6 ms |
4564 KB |
Output is correct |
22 |
Correct |
3 ms |
4180 KB |
Output is correct |
23 |
Correct |
8 ms |
5040 KB |
Output is correct |
24 |
Correct |
3 ms |
4180 KB |
Output is correct |
25 |
Correct |
7 ms |
4948 KB |
Output is correct |
26 |
Correct |
7 ms |
4904 KB |
Output is correct |
27 |
Correct |
6 ms |
4820 KB |
Output is correct |
28 |
Correct |
7 ms |
4880 KB |
Output is correct |
29 |
Correct |
6 ms |
4888 KB |
Output is correct |
30 |
Correct |
10 ms |
5008 KB |
Output is correct |
31 |
Correct |
8 ms |
5076 KB |
Output is correct |
32 |
Correct |
8 ms |
5108 KB |
Output is correct |
33 |
Correct |
8 ms |
5076 KB |
Output is correct |
34 |
Correct |
8 ms |
5012 KB |
Output is correct |
35 |
Correct |
5 ms |
4436 KB |
Output is correct |
36 |
Correct |
5 ms |
4364 KB |
Output is correct |
37 |
Correct |
5 ms |
4368 KB |
Output is correct |
38 |
Correct |
4 ms |
4180 KB |
Output is correct |
39 |
Correct |
4 ms |
4180 KB |
Output is correct |
40 |
Correct |
13 ms |
5460 KB |
Output is correct |
41 |
Correct |
5 ms |
4240 KB |
Output is correct |
42 |
Correct |
12 ms |
5516 KB |
Output is correct |
43 |
Correct |
12 ms |
5460 KB |
Output is correct |
44 |
Correct |
2 ms |
3796 KB |
Output is correct |
45 |
Correct |
215 ms |
27124 KB |
Output is correct |
46 |
Correct |
83 ms |
17472 KB |
Output is correct |
47 |
Correct |
209 ms |
27140 KB |
Output is correct |
48 |
Correct |
211 ms |
27016 KB |
Output is correct |
49 |
Correct |
58 ms |
14656 KB |
Output is correct |
50 |
Correct |
199 ms |
32436 KB |
Output is correct |
51 |
Correct |
197 ms |
27092 KB |
Output is correct |
52 |
Correct |
52 ms |
14600 KB |
Output is correct |
53 |
Correct |
59 ms |
14636 KB |
Output is correct |
54 |
Correct |
14 ms |
7380 KB |
Output is correct |
55 |
Correct |
204 ms |
32424 KB |
Output is correct |
56 |
Correct |
36 ms |
11544 KB |
Output is correct |
57 |
Correct |
50 ms |
14636 KB |
Output is correct |
58 |
Correct |
69 ms |
17668 KB |
Output is correct |
59 |
Correct |
36 ms |
11640 KB |
Output is correct |
60 |
Correct |
35 ms |
11552 KB |
Output is correct |
61 |
Correct |
84 ms |
17588 KB |
Output is correct |
62 |
Correct |
51 ms |
14208 KB |
Output is correct |
63 |
Correct |
118 ms |
19140 KB |
Output is correct |
64 |
Correct |
35 ms |
11648 KB |
Output is correct |
65 |
Correct |
139 ms |
22288 KB |
Output is correct |
66 |
Correct |
51 ms |
14156 KB |
Output is correct |
67 |
Correct |
105 ms |
19148 KB |
Output is correct |
68 |
Correct |
130 ms |
21536 KB |
Output is correct |
69 |
Correct |
142 ms |
22348 KB |
Output is correct |
70 |
Correct |
62 ms |
14156 KB |
Output is correct |
71 |
Correct |
138 ms |
21472 KB |
Output is correct |
72 |
Correct |
108 ms |
18648 KB |
Output is correct |
73 |
Correct |
172 ms |
24316 KB |
Output is correct |
74 |
Correct |
65 ms |
14284 KB |
Output is correct |
75 |
Correct |
56 ms |
12064 KB |
Output is correct |
76 |
Correct |
97 ms |
18632 KB |
Output is correct |
77 |
Correct |
158 ms |
24228 KB |
Output is correct |
78 |
Correct |
78 ms |
13968 KB |
Output is correct |
79 |
Correct |
53 ms |
12104 KB |
Output is correct |
80 |
Correct |
24 ms |
7892 KB |
Output is correct |
81 |
Correct |
73 ms |
14056 KB |
Output is correct |
82 |
Correct |
122 ms |
20316 KB |
Output is correct |
83 |
Correct |
32 ms |
7884 KB |
Output is correct |
84 |
Incorrect |
122 ms |
20280 KB |
Output isn't correct |
85 |
Halted |
0 ms |
0 KB |
- |