//start-time: 2024-04-14 19:39:32
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const int w = 100;
void solve(){
int n, m, q;
cin >> n >> m >> q;
vector<vector<int>> gR(n);
for(int i = 0; i < m; i++){
int u, v;
cin >> u >> v;
gR[v - 1].push_back(u - 1);
}
vector<vector<pair<int, int>>> dp(n);
for(int u = 0; u < n; u++){
vector<int> vis(n), val(n), cur;
for(auto &v : gR[u]){
for(auto &[value, ind] : dp[v]){
val[ind] = max(val[ind], value + 1);
}
}
for(auto &v : gR[u]){
for(auto &[value, ind] : dp[v]){
if(!vis[ind])
cur.push_back(ind), vis[ind] = 1;
}
}
for(auto v : cur) dp[u].push_back({val[v],v});
dp[u].push_back({0,u});
sort(dp[u].rbegin(), dp[u].rend());
if(dp[u].size()>w) dp[u].erase(dp[u].begin() + w, dp[u].end());
}
while(q--){
vector<bool> c(n);
int u, y, ans = -1;
cin >> u >> y;
u--;
for(int j = 0; j < y; j++){
int a; cin >> a;
c[--a] = 1;
}
if(y < w) {
for(auto &[v, i] : dp[u]){
if(!c[i]){
ans = max(ans, v);
}
}
}
else {
vector<int> naive(n);
for(int v = 0; v <= u; v++){
naive[v] = c[v] ? -1 : 0;
for(auto &el : gR[v]){
naive[v] = max(naive[v], naive[el] + (naive[el] != -1));
}
}
ans = naive[u];
}
cout << ans << endl;
}
}
int main() {
cin.tie(0)->sync_with_stdio(0);
ll T = 1;
//cin >> T;
while(T--) solve();
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
3 ms |
860 KB |
Output is correct |
6 |
Correct |
3 ms |
860 KB |
Output is correct |
7 |
Correct |
3 ms |
860 KB |
Output is correct |
8 |
Correct |
3 ms |
1368 KB |
Output is correct |
9 |
Correct |
3 ms |
1496 KB |
Output is correct |
10 |
Correct |
4 ms |
1372 KB |
Output is correct |
11 |
Correct |
3 ms |
1408 KB |
Output is correct |
12 |
Correct |
4 ms |
1116 KB |
Output is correct |
13 |
Correct |
3 ms |
1372 KB |
Output is correct |
14 |
Correct |
3 ms |
1116 KB |
Output is correct |
15 |
Correct |
3 ms |
896 KB |
Output is correct |
16 |
Correct |
3 ms |
1116 KB |
Output is correct |
17 |
Correct |
3 ms |
1176 KB |
Output is correct |
18 |
Correct |
3 ms |
1116 KB |
Output is correct |
19 |
Correct |
3 ms |
1260 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
3 ms |
860 KB |
Output is correct |
6 |
Correct |
3 ms |
860 KB |
Output is correct |
7 |
Correct |
3 ms |
860 KB |
Output is correct |
8 |
Correct |
3 ms |
1368 KB |
Output is correct |
9 |
Correct |
3 ms |
1496 KB |
Output is correct |
10 |
Correct |
4 ms |
1372 KB |
Output is correct |
11 |
Correct |
3 ms |
1408 KB |
Output is correct |
12 |
Correct |
4 ms |
1116 KB |
Output is correct |
13 |
Correct |
3 ms |
1372 KB |
Output is correct |
14 |
Correct |
3 ms |
1116 KB |
Output is correct |
15 |
Correct |
3 ms |
896 KB |
Output is correct |
16 |
Correct |
3 ms |
1116 KB |
Output is correct |
17 |
Correct |
3 ms |
1176 KB |
Output is correct |
18 |
Correct |
3 ms |
1116 KB |
Output is correct |
19 |
Correct |
3 ms |
1260 KB |
Output is correct |
20 |
Correct |
57 ms |
3844 KB |
Output is correct |
21 |
Correct |
57 ms |
3488 KB |
Output is correct |
22 |
Correct |
58 ms |
3424 KB |
Output is correct |
23 |
Correct |
58 ms |
3524 KB |
Output is correct |
24 |
Correct |
1767 ms |
114684 KB |
Output is correct |
25 |
Correct |
1761 ms |
111216 KB |
Output is correct |
26 |
Correct |
1721 ms |
110784 KB |
Output is correct |
27 |
Correct |
1550 ms |
112648 KB |
Output is correct |
28 |
Correct |
1596 ms |
112568 KB |
Output is correct |
29 |
Correct |
1572 ms |
112616 KB |
Output is correct |
30 |
Correct |
1551 ms |
112616 KB |
Output is correct |
31 |
Correct |
1631 ms |
130416 KB |
Output is correct |
32 |
Correct |
1568 ms |
112376 KB |
Output is correct |
33 |
Correct |
1491 ms |
76628 KB |
Output is correct |
34 |
Correct |
1702 ms |
104968 KB |
Output is correct |
35 |
Correct |
1471 ms |
76352 KB |
Output is correct |
36 |
Correct |
1564 ms |
93340 KB |
Output is correct |
37 |
Correct |
1725 ms |
115100 KB |
Output is correct |
38 |
Correct |
1487 ms |
93376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
3 ms |
860 KB |
Output is correct |
6 |
Correct |
3 ms |
860 KB |
Output is correct |
7 |
Correct |
3 ms |
860 KB |
Output is correct |
8 |
Correct |
3 ms |
1368 KB |
Output is correct |
9 |
Correct |
3 ms |
1496 KB |
Output is correct |
10 |
Correct |
4 ms |
1372 KB |
Output is correct |
11 |
Correct |
3 ms |
1408 KB |
Output is correct |
12 |
Correct |
4 ms |
1116 KB |
Output is correct |
13 |
Correct |
3 ms |
1372 KB |
Output is correct |
14 |
Correct |
3 ms |
1116 KB |
Output is correct |
15 |
Correct |
3 ms |
896 KB |
Output is correct |
16 |
Correct |
3 ms |
1116 KB |
Output is correct |
17 |
Correct |
3 ms |
1176 KB |
Output is correct |
18 |
Correct |
3 ms |
1116 KB |
Output is correct |
19 |
Correct |
3 ms |
1260 KB |
Output is correct |
20 |
Correct |
57 ms |
3844 KB |
Output is correct |
21 |
Correct |
57 ms |
3488 KB |
Output is correct |
22 |
Correct |
58 ms |
3424 KB |
Output is correct |
23 |
Correct |
58 ms |
3524 KB |
Output is correct |
24 |
Correct |
1767 ms |
114684 KB |
Output is correct |
25 |
Correct |
1761 ms |
111216 KB |
Output is correct |
26 |
Correct |
1721 ms |
110784 KB |
Output is correct |
27 |
Correct |
1550 ms |
112648 KB |
Output is correct |
28 |
Correct |
1596 ms |
112568 KB |
Output is correct |
29 |
Correct |
1572 ms |
112616 KB |
Output is correct |
30 |
Correct |
1551 ms |
112616 KB |
Output is correct |
31 |
Correct |
1631 ms |
130416 KB |
Output is correct |
32 |
Correct |
1568 ms |
112376 KB |
Output is correct |
33 |
Correct |
1491 ms |
76628 KB |
Output is correct |
34 |
Correct |
1702 ms |
104968 KB |
Output is correct |
35 |
Correct |
1471 ms |
76352 KB |
Output is correct |
36 |
Correct |
1564 ms |
93340 KB |
Output is correct |
37 |
Correct |
1725 ms |
115100 KB |
Output is correct |
38 |
Correct |
1487 ms |
93376 KB |
Output is correct |
39 |
Correct |
1957 ms |
117088 KB |
Output is correct |
40 |
Correct |
1843 ms |
112564 KB |
Output is correct |
41 |
Execution timed out |
2008 ms |
113664 KB |
Time limit exceeded |
42 |
Halted |
0 ms |
0 KB |
- |