//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);
vector<int> vis(n), cur;
for(int u = 0; u < n; u++){
vector<int> val(n);
cur.clear();
for(auto &v : gR[u]){
for(auto &[value, ind] : dp[v]){
val[ind] = max(val[ind], value + 1);
if(vis[ind] != u){
vis[ind] = u;
cur.push_back(ind);
}
}
}
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 |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
2 ms |
860 KB |
Output is correct |
6 |
Correct |
2 ms |
860 KB |
Output is correct |
7 |
Correct |
2 ms |
860 KB |
Output is correct |
8 |
Correct |
3 ms |
1376 KB |
Output is correct |
9 |
Correct |
3 ms |
1372 KB |
Output is correct |
10 |
Correct |
3 ms |
1372 KB |
Output is correct |
11 |
Correct |
3 ms |
1372 KB |
Output is correct |
12 |
Correct |
3 ms |
1116 KB |
Output is correct |
13 |
Correct |
3 ms |
1372 KB |
Output is correct |
14 |
Correct |
3 ms |
1112 KB |
Output is correct |
15 |
Correct |
3 ms |
856 KB |
Output is correct |
16 |
Correct |
3 ms |
1116 KB |
Output is correct |
17 |
Correct |
4 ms |
1116 KB |
Output is correct |
18 |
Correct |
4 ms |
1112 KB |
Output is correct |
19 |
Correct |
4 ms |
1116 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
2 ms |
860 KB |
Output is correct |
6 |
Correct |
2 ms |
860 KB |
Output is correct |
7 |
Correct |
2 ms |
860 KB |
Output is correct |
8 |
Correct |
3 ms |
1376 KB |
Output is correct |
9 |
Correct |
3 ms |
1372 KB |
Output is correct |
10 |
Correct |
3 ms |
1372 KB |
Output is correct |
11 |
Correct |
3 ms |
1372 KB |
Output is correct |
12 |
Correct |
3 ms |
1116 KB |
Output is correct |
13 |
Correct |
3 ms |
1372 KB |
Output is correct |
14 |
Correct |
3 ms |
1112 KB |
Output is correct |
15 |
Correct |
3 ms |
856 KB |
Output is correct |
16 |
Correct |
3 ms |
1116 KB |
Output is correct |
17 |
Correct |
4 ms |
1116 KB |
Output is correct |
18 |
Correct |
4 ms |
1112 KB |
Output is correct |
19 |
Correct |
4 ms |
1116 KB |
Output is correct |
20 |
Correct |
55 ms |
2384 KB |
Output is correct |
21 |
Correct |
56 ms |
2560 KB |
Output is correct |
22 |
Correct |
54 ms |
2584 KB |
Output is correct |
23 |
Correct |
60 ms |
2724 KB |
Output is correct |
24 |
Correct |
1020 ms |
113260 KB |
Output is correct |
25 |
Correct |
1086 ms |
111328 KB |
Output is correct |
26 |
Correct |
1006 ms |
111064 KB |
Output is correct |
27 |
Correct |
829 ms |
113064 KB |
Output is correct |
28 |
Correct |
836 ms |
113008 KB |
Output is correct |
29 |
Correct |
875 ms |
112744 KB |
Output is correct |
30 |
Correct |
826 ms |
112836 KB |
Output is correct |
31 |
Correct |
959 ms |
130684 KB |
Output is correct |
32 |
Correct |
883 ms |
112616 KB |
Output is correct |
33 |
Correct |
801 ms |
76856 KB |
Output is correct |
34 |
Correct |
1052 ms |
104240 KB |
Output is correct |
35 |
Correct |
805 ms |
76600 KB |
Output is correct |
36 |
Correct |
818 ms |
93428 KB |
Output is correct |
37 |
Correct |
1060 ms |
115476 KB |
Output is correct |
38 |
Correct |
897 ms |
93572 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
2 ms |
860 KB |
Output is correct |
6 |
Correct |
2 ms |
860 KB |
Output is correct |
7 |
Correct |
2 ms |
860 KB |
Output is correct |
8 |
Correct |
3 ms |
1376 KB |
Output is correct |
9 |
Correct |
3 ms |
1372 KB |
Output is correct |
10 |
Correct |
3 ms |
1372 KB |
Output is correct |
11 |
Correct |
3 ms |
1372 KB |
Output is correct |
12 |
Correct |
3 ms |
1116 KB |
Output is correct |
13 |
Correct |
3 ms |
1372 KB |
Output is correct |
14 |
Correct |
3 ms |
1112 KB |
Output is correct |
15 |
Correct |
3 ms |
856 KB |
Output is correct |
16 |
Correct |
3 ms |
1116 KB |
Output is correct |
17 |
Correct |
4 ms |
1116 KB |
Output is correct |
18 |
Correct |
4 ms |
1112 KB |
Output is correct |
19 |
Correct |
4 ms |
1116 KB |
Output is correct |
20 |
Correct |
55 ms |
2384 KB |
Output is correct |
21 |
Correct |
56 ms |
2560 KB |
Output is correct |
22 |
Correct |
54 ms |
2584 KB |
Output is correct |
23 |
Correct |
60 ms |
2724 KB |
Output is correct |
24 |
Correct |
1020 ms |
113260 KB |
Output is correct |
25 |
Correct |
1086 ms |
111328 KB |
Output is correct |
26 |
Correct |
1006 ms |
111064 KB |
Output is correct |
27 |
Correct |
829 ms |
113064 KB |
Output is correct |
28 |
Correct |
836 ms |
113008 KB |
Output is correct |
29 |
Correct |
875 ms |
112744 KB |
Output is correct |
30 |
Correct |
826 ms |
112836 KB |
Output is correct |
31 |
Correct |
959 ms |
130684 KB |
Output is correct |
32 |
Correct |
883 ms |
112616 KB |
Output is correct |
33 |
Correct |
801 ms |
76856 KB |
Output is correct |
34 |
Correct |
1052 ms |
104240 KB |
Output is correct |
35 |
Correct |
805 ms |
76600 KB |
Output is correct |
36 |
Correct |
818 ms |
93428 KB |
Output is correct |
37 |
Correct |
1060 ms |
115476 KB |
Output is correct |
38 |
Correct |
897 ms |
93572 KB |
Output is correct |
39 |
Correct |
1283 ms |
118036 KB |
Output is correct |
40 |
Correct |
1146 ms |
113536 KB |
Output is correct |
41 |
Correct |
1360 ms |
115160 KB |
Output is correct |
42 |
Correct |
1245 ms |
113944 KB |
Output is correct |
43 |
Correct |
1097 ms |
115948 KB |
Output is correct |
44 |
Correct |
220 ms |
5256 KB |
Output is correct |
45 |
Correct |
78 ms |
4368 KB |
Output is correct |
46 |
Correct |
123 ms |
4436 KB |
Output is correct |
47 |
Correct |
69 ms |
4112 KB |
Output is correct |
48 |
Correct |
62 ms |
4072 KB |
Output is correct |
49 |
Correct |
1036 ms |
114164 KB |
Output is correct |
50 |
Correct |
1157 ms |
113560 KB |
Output is correct |
51 |
Correct |
205 ms |
4868 KB |
Output is correct |
52 |
Correct |
121 ms |
4304 KB |
Output is correct |
53 |
Correct |
1050 ms |
94408 KB |
Output is correct |
54 |
Correct |
1193 ms |
115316 KB |
Output is correct |
55 |
Correct |
1131 ms |
93944 KB |
Output is correct |
56 |
Correct |
1299 ms |
118844 KB |
Output is correct |
57 |
Correct |
219 ms |
5056 KB |
Output is correct |
58 |
Correct |
224 ms |
4948 KB |
Output is correct |
59 |
Correct |
115 ms |
4188 KB |
Output is correct |
60 |
Correct |
116 ms |
4180 KB |
Output is correct |
61 |
Correct |
865 ms |
113532 KB |
Output is correct |
62 |
Correct |
837 ms |
94304 KB |
Output is correct |
63 |
Correct |
1073 ms |
114124 KB |
Output is correct |
64 |
Correct |
1020 ms |
113328 KB |
Output is correct |
65 |
Correct |
1040 ms |
94060 KB |
Output is correct |
66 |
Correct |
1169 ms |
116196 KB |
Output is correct |
67 |
Correct |
1140 ms |
113500 KB |
Output is correct |
68 |
Correct |
1054 ms |
94404 KB |
Output is correct |
69 |
Correct |
1230 ms |
116356 KB |
Output is correct |
70 |
Correct |
808 ms |
113336 KB |
Output is correct |
71 |
Correct |
837 ms |
94172 KB |
Output is correct |
72 |
Correct |
1025 ms |
115828 KB |
Output is correct |
73 |
Correct |
848 ms |
113460 KB |
Output is correct |
74 |
Correct |
847 ms |
94264 KB |
Output is correct |
75 |
Correct |
997 ms |
118328 KB |
Output is correct |
76 |
Correct |
1033 ms |
114356 KB |
Output is correct |
77 |
Correct |
1100 ms |
113868 KB |
Output is correct |
78 |
Correct |
847 ms |
113880 KB |
Output is correct |
79 |
Correct |
203 ms |
5092 KB |
Output is correct |
80 |
Correct |
113 ms |
4296 KB |
Output is correct |
81 |
Correct |
66 ms |
3904 KB |
Output is correct |
82 |
Correct |
1087 ms |
114400 KB |
Output is correct |
83 |
Correct |
1180 ms |
135676 KB |
Output is correct |
84 |
Correct |
1118 ms |
113704 KB |
Output is correct |
85 |
Correct |
1253 ms |
146612 KB |
Output is correct |
86 |
Correct |
874 ms |
113820 KB |
Output is correct |
87 |
Correct |
976 ms |
135040 KB |
Output is correct |
88 |
Correct |
216 ms |
5260 KB |
Output is correct |
89 |
Correct |
209 ms |
5424 KB |
Output is correct |
90 |
Correct |
120 ms |
4284 KB |
Output is correct |
91 |
Correct |
132 ms |
4296 KB |
Output is correct |
92 |
Correct |
62 ms |
4060 KB |
Output is correct |
93 |
Correct |
55 ms |
3916 KB |
Output is correct |
94 |
Correct |
1004 ms |
78916 KB |
Output is correct |
95 |
Correct |
1139 ms |
112608 KB |
Output is correct |
96 |
Correct |
983 ms |
77372 KB |
Output is correct |
97 |
Correct |
1204 ms |
112120 KB |
Output is correct |
98 |
Correct |
757 ms |
77148 KB |
Output is correct |
99 |
Correct |
978 ms |
108028 KB |
Output is correct |
100 |
Correct |
246 ms |
4436 KB |
Output is correct |
101 |
Correct |
205 ms |
4728 KB |
Output is correct |
102 |
Correct |
105 ms |
3924 KB |
Output is correct |
103 |
Correct |
107 ms |
3756 KB |
Output is correct |
104 |
Correct |
58 ms |
3664 KB |
Output is correct |
105 |
Correct |
65 ms |
3624 KB |
Output is correct |
106 |
Correct |
1008 ms |
94136 KB |
Output is correct |
107 |
Correct |
1236 ms |
120264 KB |
Output is correct |
108 |
Correct |
1168 ms |
94600 KB |
Output is correct |
109 |
Correct |
1327 ms |
112316 KB |
Output is correct |
110 |
Correct |
862 ms |
94720 KB |
Output is correct |
111 |
Correct |
1065 ms |
117436 KB |
Output is correct |
112 |
Correct |
216 ms |
5228 KB |
Output is correct |
113 |
Correct |
218 ms |
5328 KB |
Output is correct |
114 |
Correct |
123 ms |
4200 KB |
Output is correct |
115 |
Correct |
125 ms |
4416 KB |
Output is correct |
116 |
Correct |
56 ms |
3976 KB |
Output is correct |
117 |
Correct |
61 ms |
3924 KB |
Output is correct |
118 |
Correct |
840 ms |
113428 KB |
Output is correct |
119 |
Correct |
933 ms |
94348 KB |
Output is correct |
120 |
Correct |
1049 ms |
121484 KB |
Output is correct |
121 |
Correct |
925 ms |
113032 KB |
Output is correct |
122 |
Correct |
886 ms |
93768 KB |
Output is correct |
123 |
Correct |
1086 ms |
120572 KB |
Output is correct |
124 |
Correct |
898 ms |
112932 KB |
Output is correct |
125 |
Correct |
843 ms |
94248 KB |
Output is correct |
126 |
Correct |
1108 ms |
117516 KB |
Output is correct |