//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);
for(int u = 0; u < n; u++){
vector<int> val(n), cur;
for(auto &v : gR[u]){
for(auto &[value, ind] : dp[v]){
if(vis[ind] == u) val[ind] = max(val[ind], value + 1);
else vis[ind] = u, val[ind] = value + 1, 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;
}
# |
결과 |
실행 시간 |
메모리 |
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 |
1 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 |
1372 KB |
Output is correct |
9 |
Correct |
3 ms |
1372 KB |
Output is correct |
10 |
Correct |
3 ms |
1372 KB |
Output is correct |
11 |
Correct |
4 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 |
1116 KB |
Output is correct |
15 |
Correct |
3 ms |
860 KB |
Output is correct |
16 |
Correct |
3 ms |
1116 KB |
Output is correct |
17 |
Correct |
3 ms |
1116 KB |
Output is correct |
18 |
Correct |
4 ms |
1116 KB |
Output is correct |
19 |
Correct |
3 ms |
1116 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
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 |
1 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 |
1372 KB |
Output is correct |
9 |
Correct |
3 ms |
1372 KB |
Output is correct |
10 |
Correct |
3 ms |
1372 KB |
Output is correct |
11 |
Correct |
4 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 |
1116 KB |
Output is correct |
15 |
Correct |
3 ms |
860 KB |
Output is correct |
16 |
Correct |
3 ms |
1116 KB |
Output is correct |
17 |
Correct |
3 ms |
1116 KB |
Output is correct |
18 |
Correct |
4 ms |
1116 KB |
Output is correct |
19 |
Correct |
3 ms |
1116 KB |
Output is correct |
20 |
Correct |
56 ms |
2388 KB |
Output is correct |
21 |
Correct |
51 ms |
2384 KB |
Output is correct |
22 |
Correct |
50 ms |
2384 KB |
Output is correct |
23 |
Correct |
54 ms |
2644 KB |
Output is correct |
24 |
Correct |
980 ms |
113288 KB |
Output is correct |
25 |
Correct |
1046 ms |
109840 KB |
Output is correct |
26 |
Correct |
1069 ms |
109424 KB |
Output is correct |
27 |
Correct |
808 ms |
111252 KB |
Output is correct |
28 |
Correct |
812 ms |
111112 KB |
Output is correct |
29 |
Correct |
801 ms |
111144 KB |
Output is correct |
30 |
Correct |
828 ms |
111068 KB |
Output is correct |
31 |
Correct |
960 ms |
129040 KB |
Output is correct |
32 |
Correct |
825 ms |
111000 KB |
Output is correct |
33 |
Correct |
801 ms |
75204 KB |
Output is correct |
34 |
Correct |
928 ms |
103644 KB |
Output is correct |
35 |
Correct |
834 ms |
74820 KB |
Output is correct |
36 |
Correct |
848 ms |
91688 KB |
Output is correct |
37 |
Correct |
1037 ms |
113788 KB |
Output is correct |
38 |
Correct |
774 ms |
91976 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
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 |
1 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 |
1372 KB |
Output is correct |
9 |
Correct |
3 ms |
1372 KB |
Output is correct |
10 |
Correct |
3 ms |
1372 KB |
Output is correct |
11 |
Correct |
4 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 |
1116 KB |
Output is correct |
15 |
Correct |
3 ms |
860 KB |
Output is correct |
16 |
Correct |
3 ms |
1116 KB |
Output is correct |
17 |
Correct |
3 ms |
1116 KB |
Output is correct |
18 |
Correct |
4 ms |
1116 KB |
Output is correct |
19 |
Correct |
3 ms |
1116 KB |
Output is correct |
20 |
Correct |
56 ms |
2388 KB |
Output is correct |
21 |
Correct |
51 ms |
2384 KB |
Output is correct |
22 |
Correct |
50 ms |
2384 KB |
Output is correct |
23 |
Correct |
54 ms |
2644 KB |
Output is correct |
24 |
Correct |
980 ms |
113288 KB |
Output is correct |
25 |
Correct |
1046 ms |
109840 KB |
Output is correct |
26 |
Correct |
1069 ms |
109424 KB |
Output is correct |
27 |
Correct |
808 ms |
111252 KB |
Output is correct |
28 |
Correct |
812 ms |
111112 KB |
Output is correct |
29 |
Correct |
801 ms |
111144 KB |
Output is correct |
30 |
Correct |
828 ms |
111068 KB |
Output is correct |
31 |
Correct |
960 ms |
129040 KB |
Output is correct |
32 |
Correct |
825 ms |
111000 KB |
Output is correct |
33 |
Correct |
801 ms |
75204 KB |
Output is correct |
34 |
Correct |
928 ms |
103644 KB |
Output is correct |
35 |
Correct |
834 ms |
74820 KB |
Output is correct |
36 |
Correct |
848 ms |
91688 KB |
Output is correct |
37 |
Correct |
1037 ms |
113788 KB |
Output is correct |
38 |
Correct |
774 ms |
91976 KB |
Output is correct |
39 |
Correct |
1171 ms |
114976 KB |
Output is correct |
40 |
Correct |
1059 ms |
110696 KB |
Output is correct |
41 |
Correct |
1367 ms |
112364 KB |
Output is correct |
42 |
Correct |
1111 ms |
113428 KB |
Output is correct |
43 |
Correct |
1012 ms |
115012 KB |
Output is correct |
44 |
Correct |
204 ms |
4436 KB |
Output is correct |
45 |
Correct |
75 ms |
3780 KB |
Output is correct |
46 |
Correct |
119 ms |
3988 KB |
Output is correct |
47 |
Correct |
64 ms |
3452 KB |
Output is correct |
48 |
Correct |
53 ms |
3536 KB |
Output is correct |
49 |
Correct |
1039 ms |
113224 KB |
Output is correct |
50 |
Correct |
1070 ms |
112608 KB |
Output is correct |
51 |
Correct |
200 ms |
4284 KB |
Output is correct |
52 |
Correct |
109 ms |
3692 KB |
Output is correct |
53 |
Correct |
1014 ms |
93608 KB |
Output is correct |
54 |
Correct |
1256 ms |
114340 KB |
Output is correct |
55 |
Correct |
1053 ms |
93380 KB |
Output is correct |
56 |
Correct |
1305 ms |
117960 KB |
Output is correct |
57 |
Correct |
196 ms |
4176 KB |
Output is correct |
58 |
Correct |
200 ms |
4520 KB |
Output is correct |
59 |
Correct |
123 ms |
3908 KB |
Output is correct |
60 |
Correct |
110 ms |
3832 KB |
Output is correct |
61 |
Correct |
921 ms |
112560 KB |
Output is correct |
62 |
Correct |
857 ms |
93456 KB |
Output is correct |
63 |
Correct |
1045 ms |
113600 KB |
Output is correct |
64 |
Correct |
993 ms |
112792 KB |
Output is correct |
65 |
Correct |
987 ms |
93452 KB |
Output is correct |
66 |
Correct |
1133 ms |
115620 KB |
Output is correct |
67 |
Correct |
1095 ms |
113020 KB |
Output is correct |
68 |
Correct |
1030 ms |
93800 KB |
Output is correct |
69 |
Correct |
1262 ms |
115584 KB |
Output is correct |
70 |
Correct |
861 ms |
112884 KB |
Output is correct |
71 |
Correct |
778 ms |
93668 KB |
Output is correct |
72 |
Correct |
951 ms |
115304 KB |
Output is correct |
73 |
Correct |
829 ms |
112560 KB |
Output is correct |
74 |
Correct |
828 ms |
93472 KB |
Output is correct |
75 |
Correct |
1008 ms |
117440 KB |
Output is correct |
76 |
Correct |
1122 ms |
113268 KB |
Output is correct |
77 |
Correct |
1110 ms |
112816 KB |
Output is correct |
78 |
Correct |
847 ms |
113012 KB |
Output is correct |
79 |
Correct |
194 ms |
4532 KB |
Output is correct |
80 |
Correct |
110 ms |
3668 KB |
Output is correct |
81 |
Correct |
62 ms |
3408 KB |
Output is correct |
82 |
Correct |
1016 ms |
113292 KB |
Output is correct |
83 |
Correct |
1341 ms |
134480 KB |
Output is correct |
84 |
Correct |
1049 ms |
112808 KB |
Output is correct |
85 |
Correct |
1255 ms |
145840 KB |
Output is correct |
86 |
Correct |
886 ms |
113900 KB |
Output is correct |
87 |
Correct |
975 ms |
134768 KB |
Output is correct |
88 |
Correct |
208 ms |
5384 KB |
Output is correct |
89 |
Correct |
196 ms |
5196 KB |
Output is correct |
90 |
Correct |
115 ms |
4320 KB |
Output is correct |
91 |
Correct |
109 ms |
4272 KB |
Output is correct |
92 |
Correct |
52 ms |
4124 KB |
Output is correct |
93 |
Correct |
50 ms |
3908 KB |
Output is correct |
94 |
Correct |
1020 ms |
78332 KB |
Output is correct |
95 |
Correct |
1269 ms |
113556 KB |
Output is correct |
96 |
Correct |
990 ms |
77568 KB |
Output is correct |
97 |
Correct |
1258 ms |
114224 KB |
Output is correct |
98 |
Correct |
855 ms |
77836 KB |
Output is correct |
99 |
Correct |
949 ms |
109780 KB |
Output is correct |
100 |
Correct |
201 ms |
5232 KB |
Output is correct |
101 |
Correct |
206 ms |
5180 KB |
Output is correct |
102 |
Correct |
103 ms |
4260 KB |
Output is correct |
103 |
Correct |
93 ms |
4320 KB |
Output is correct |
104 |
Correct |
52 ms |
4180 KB |
Output is correct |
105 |
Correct |
52 ms |
4000 KB |
Output is correct |
106 |
Correct |
1006 ms |
94648 KB |
Output is correct |
107 |
Correct |
1278 ms |
121040 KB |
Output is correct |
108 |
Correct |
1029 ms |
94916 KB |
Output is correct |
109 |
Correct |
1263 ms |
112092 KB |
Output is correct |
110 |
Correct |
871 ms |
94712 KB |
Output is correct |
111 |
Correct |
987 ms |
117636 KB |
Output is correct |
112 |
Correct |
202 ms |
5132 KB |
Output is correct |
113 |
Correct |
198 ms |
5304 KB |
Output is correct |
114 |
Correct |
112 ms |
4588 KB |
Output is correct |
115 |
Correct |
110 ms |
4172 KB |
Output is correct |
116 |
Correct |
50 ms |
3932 KB |
Output is correct |
117 |
Correct |
51 ms |
3920 KB |
Output is correct |
118 |
Correct |
890 ms |
113096 KB |
Output is correct |
119 |
Correct |
859 ms |
94084 KB |
Output is correct |
120 |
Correct |
1052 ms |
121380 KB |
Output is correct |
121 |
Correct |
882 ms |
112608 KB |
Output is correct |
122 |
Correct |
853 ms |
92868 KB |
Output is correct |
123 |
Correct |
1024 ms |
119888 KB |
Output is correct |
124 |
Correct |
830 ms |
112576 KB |
Output is correct |
125 |
Correct |
803 ms |
93648 KB |
Output is correct |
126 |
Correct |
980 ms |
116472 KB |
Output is correct |