#include "joitour.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int nx=2e5+5;
ll n, t[nx], cnt[3], dp[3][nx], res;
vector<int> d[nx];
void dfs(int u, int p)
{
dp[0][u]=dp[1][u]=dp[2][u]=0;
dp[t[u]][u]++;
for (auto v:d[u]) if (v!=p) dfs(v, u), dp[0][u]+=dp[0][v], dp[1][u]+=dp[1][v], dp[2][u]+=dp[2][v];
if (t[u]==1)
{
ll a=0, b=0;
for (auto v:d[u])
{
if (v==p) continue;
res+=dp[0][v]*b;
res+=dp[2][v]*a;
b+=dp[2][v];
a+=dp[0][v];
}
//cout<<"here "<<u<<' '<<res<<'\n';
res+=dp[0][u]*(cnt[2]-dp[2][u]);
res+=dp[2][u]*(cnt[0]-dp[0][u]);
}
}
void init(int N, std::vector<int> F, std::vector<int> U, std::vector<int> V, int Q)
{
n=N;
for (int i=0; i<n; i++) t[i]=F[i], cnt[t[i]]++;
for (int i=0; i<n-1; i++) d[U[i]].push_back(V[i]), d[V[i]].push_back(U[i]);
}
void change(int X, int Y)
{
cnt[t[X]]--;
t[X]=Y;
cnt[t[X]]++;
}
long long num_tours()
{
res=0;
dfs(0, 0);
return res;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
10840 KB |
Output is correct |
2 |
Correct |
2 ms |
10840 KB |
Output is correct |
3 |
Correct |
1 ms |
10840 KB |
Output is correct |
4 |
Correct |
3 ms |
10840 KB |
Output is correct |
5 |
Correct |
2 ms |
10840 KB |
Output is correct |
6 |
Correct |
2 ms |
10840 KB |
Output is correct |
7 |
Correct |
3 ms |
10840 KB |
Output is correct |
8 |
Correct |
2 ms |
10840 KB |
Output is correct |
9 |
Correct |
3 ms |
10840 KB |
Output is correct |
10 |
Correct |
2 ms |
10840 KB |
Output is correct |
11 |
Correct |
2 ms |
10840 KB |
Output is correct |
12 |
Correct |
1 ms |
10840 KB |
Output is correct |
13 |
Correct |
1 ms |
10840 KB |
Output is correct |
14 |
Correct |
2 ms |
10840 KB |
Output is correct |
15 |
Correct |
2 ms |
10840 KB |
Output is correct |
16 |
Correct |
3 ms |
10840 KB |
Output is correct |
17 |
Correct |
2 ms |
10840 KB |
Output is correct |
18 |
Correct |
2 ms |
10840 KB |
Output is correct |
19 |
Correct |
3 ms |
10836 KB |
Output is correct |
20 |
Correct |
3 ms |
10840 KB |
Output is correct |
21 |
Correct |
2 ms |
10840 KB |
Output is correct |
22 |
Correct |
2 ms |
10840 KB |
Output is correct |
23 |
Correct |
2 ms |
10840 KB |
Output is correct |
24 |
Correct |
2 ms |
10840 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
10840 KB |
Output is correct |
2 |
Correct |
2 ms |
10840 KB |
Output is correct |
3 |
Correct |
1 ms |
10840 KB |
Output is correct |
4 |
Correct |
3 ms |
10840 KB |
Output is correct |
5 |
Correct |
2 ms |
10840 KB |
Output is correct |
6 |
Correct |
2 ms |
10840 KB |
Output is correct |
7 |
Correct |
3 ms |
10840 KB |
Output is correct |
8 |
Correct |
2 ms |
10840 KB |
Output is correct |
9 |
Correct |
3 ms |
10840 KB |
Output is correct |
10 |
Correct |
2 ms |
10840 KB |
Output is correct |
11 |
Correct |
2 ms |
10840 KB |
Output is correct |
12 |
Correct |
1 ms |
10840 KB |
Output is correct |
13 |
Correct |
1 ms |
10840 KB |
Output is correct |
14 |
Correct |
2 ms |
10840 KB |
Output is correct |
15 |
Correct |
2 ms |
10840 KB |
Output is correct |
16 |
Correct |
3 ms |
10840 KB |
Output is correct |
17 |
Correct |
2 ms |
10840 KB |
Output is correct |
18 |
Correct |
2 ms |
10840 KB |
Output is correct |
19 |
Correct |
3 ms |
10836 KB |
Output is correct |
20 |
Correct |
3 ms |
10840 KB |
Output is correct |
21 |
Correct |
2 ms |
10840 KB |
Output is correct |
22 |
Correct |
2 ms |
10840 KB |
Output is correct |
23 |
Correct |
2 ms |
10840 KB |
Output is correct |
24 |
Correct |
2 ms |
10840 KB |
Output is correct |
25 |
Correct |
103 ms |
11096 KB |
Output is correct |
26 |
Correct |
71 ms |
11096 KB |
Output is correct |
27 |
Correct |
52 ms |
11096 KB |
Output is correct |
28 |
Correct |
53 ms |
11352 KB |
Output is correct |
29 |
Correct |
57 ms |
11096 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
10840 KB |
Output is correct |
2 |
Correct |
94 ms |
31084 KB |
Output is correct |
3 |
Correct |
81 ms |
30576 KB |
Output is correct |
4 |
Correct |
91 ms |
27248 KB |
Output is correct |
5 |
Correct |
89 ms |
31776 KB |
Output is correct |
6 |
Correct |
51 ms |
20076 KB |
Output is correct |
7 |
Correct |
50 ms |
20128 KB |
Output is correct |
8 |
Correct |
92 ms |
20124 KB |
Output is correct |
9 |
Correct |
72 ms |
20076 KB |
Output is correct |
10 |
Correct |
70 ms |
20128 KB |
Output is correct |
11 |
Correct |
73 ms |
20512 KB |
Output is correct |
12 |
Correct |
103 ms |
25376 KB |
Output is correct |
13 |
Correct |
75 ms |
25452 KB |
Output is correct |
14 |
Correct |
112 ms |
25140 KB |
Output is correct |
15 |
Correct |
105 ms |
24444 KB |
Output is correct |
16 |
Correct |
112 ms |
34592 KB |
Output is correct |
17 |
Correct |
2 ms |
10840 KB |
Output is correct |
18 |
Correct |
2 ms |
10836 KB |
Output is correct |
19 |
Correct |
2 ms |
10840 KB |
Output is correct |
20 |
Correct |
1 ms |
10840 KB |
Output is correct |
21 |
Correct |
73 ms |
20308 KB |
Output is correct |
22 |
Correct |
71 ms |
20120 KB |
Output is correct |
23 |
Correct |
80 ms |
20128 KB |
Output is correct |
24 |
Correct |
105 ms |
20304 KB |
Output is correct |
25 |
Correct |
58 ms |
20960 KB |
Output is correct |
26 |
Correct |
59 ms |
21008 KB |
Output is correct |
27 |
Correct |
57 ms |
20936 KB |
Output is correct |
28 |
Correct |
66 ms |
21004 KB |
Output is correct |
29 |
Correct |
66 ms |
38760 KB |
Output is correct |
30 |
Correct |
63 ms |
38688 KB |
Output is correct |
31 |
Correct |
86 ms |
38688 KB |
Output is correct |
32 |
Correct |
62 ms |
38688 KB |
Output is correct |
33 |
Correct |
49 ms |
20048 KB |
Output is correct |
34 |
Correct |
53 ms |
20128 KB |
Output is correct |
35 |
Correct |
49 ms |
20048 KB |
Output is correct |
36 |
Correct |
51 ms |
20048 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
10840 KB |
Output is correct |
2 |
Correct |
1 ms |
10840 KB |
Output is correct |
3 |
Correct |
2 ms |
10840 KB |
Output is correct |
4 |
Correct |
2 ms |
10840 KB |
Output is correct |
5 |
Correct |
2 ms |
10840 KB |
Output is correct |
6 |
Correct |
2 ms |
10840 KB |
Output is correct |
7 |
Correct |
3 ms |
10840 KB |
Output is correct |
8 |
Correct |
49 ms |
11352 KB |
Output is correct |
9 |
Correct |
64 ms |
38688 KB |
Output is correct |
10 |
Correct |
61 ms |
38764 KB |
Output is correct |
11 |
Correct |
63 ms |
38788 KB |
Output is correct |
12 |
Correct |
71 ms |
38688 KB |
Output is correct |
13 |
Execution timed out |
3024 ms |
24508 KB |
Time limit exceeded |
14 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
10840 KB |
Output is correct |
2 |
Correct |
2 ms |
10840 KB |
Output is correct |
3 |
Correct |
2 ms |
10840 KB |
Output is correct |
4 |
Correct |
2 ms |
10856 KB |
Output is correct |
5 |
Correct |
2 ms |
10840 KB |
Output is correct |
6 |
Correct |
4 ms |
10840 KB |
Output is correct |
7 |
Correct |
52 ms |
11096 KB |
Output is correct |
8 |
Correct |
60 ms |
20124 KB |
Output is correct |
9 |
Correct |
54 ms |
20136 KB |
Output is correct |
10 |
Correct |
53 ms |
20120 KB |
Output is correct |
11 |
Correct |
49 ms |
20228 KB |
Output is correct |
12 |
Execution timed out |
3091 ms |
15040 KB |
Time limit exceeded |
13 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
10840 KB |
Output is correct |
2 |
Correct |
2 ms |
10840 KB |
Output is correct |
3 |
Correct |
1 ms |
10840 KB |
Output is correct |
4 |
Correct |
3 ms |
10840 KB |
Output is correct |
5 |
Correct |
2 ms |
10840 KB |
Output is correct |
6 |
Correct |
2 ms |
10840 KB |
Output is correct |
7 |
Correct |
3 ms |
10840 KB |
Output is correct |
8 |
Correct |
2 ms |
10840 KB |
Output is correct |
9 |
Correct |
3 ms |
10840 KB |
Output is correct |
10 |
Correct |
2 ms |
10840 KB |
Output is correct |
11 |
Correct |
2 ms |
10840 KB |
Output is correct |
12 |
Correct |
1 ms |
10840 KB |
Output is correct |
13 |
Correct |
1 ms |
10840 KB |
Output is correct |
14 |
Correct |
2 ms |
10840 KB |
Output is correct |
15 |
Correct |
2 ms |
10840 KB |
Output is correct |
16 |
Correct |
3 ms |
10840 KB |
Output is correct |
17 |
Correct |
2 ms |
10840 KB |
Output is correct |
18 |
Correct |
2 ms |
10840 KB |
Output is correct |
19 |
Correct |
3 ms |
10836 KB |
Output is correct |
20 |
Correct |
3 ms |
10840 KB |
Output is correct |
21 |
Correct |
2 ms |
10840 KB |
Output is correct |
22 |
Correct |
2 ms |
10840 KB |
Output is correct |
23 |
Correct |
2 ms |
10840 KB |
Output is correct |
24 |
Correct |
2 ms |
10840 KB |
Output is correct |
25 |
Correct |
103 ms |
11096 KB |
Output is correct |
26 |
Correct |
71 ms |
11096 KB |
Output is correct |
27 |
Correct |
52 ms |
11096 KB |
Output is correct |
28 |
Correct |
53 ms |
11352 KB |
Output is correct |
29 |
Correct |
57 ms |
11096 KB |
Output is correct |
30 |
Execution timed out |
3097 ms |
18368 KB |
Time limit exceeded |
31 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
10840 KB |
Output is correct |
2 |
Correct |
2 ms |
10840 KB |
Output is correct |
3 |
Correct |
1 ms |
10840 KB |
Output is correct |
4 |
Correct |
3 ms |
10840 KB |
Output is correct |
5 |
Correct |
2 ms |
10840 KB |
Output is correct |
6 |
Correct |
2 ms |
10840 KB |
Output is correct |
7 |
Correct |
3 ms |
10840 KB |
Output is correct |
8 |
Correct |
2 ms |
10840 KB |
Output is correct |
9 |
Correct |
3 ms |
10840 KB |
Output is correct |
10 |
Correct |
2 ms |
10840 KB |
Output is correct |
11 |
Correct |
2 ms |
10840 KB |
Output is correct |
12 |
Correct |
1 ms |
10840 KB |
Output is correct |
13 |
Correct |
1 ms |
10840 KB |
Output is correct |
14 |
Correct |
2 ms |
10840 KB |
Output is correct |
15 |
Correct |
2 ms |
10840 KB |
Output is correct |
16 |
Correct |
3 ms |
10840 KB |
Output is correct |
17 |
Correct |
2 ms |
10840 KB |
Output is correct |
18 |
Correct |
2 ms |
10840 KB |
Output is correct |
19 |
Correct |
3 ms |
10836 KB |
Output is correct |
20 |
Correct |
3 ms |
10840 KB |
Output is correct |
21 |
Correct |
2 ms |
10840 KB |
Output is correct |
22 |
Correct |
2 ms |
10840 KB |
Output is correct |
23 |
Correct |
2 ms |
10840 KB |
Output is correct |
24 |
Correct |
2 ms |
10840 KB |
Output is correct |
25 |
Correct |
103 ms |
11096 KB |
Output is correct |
26 |
Correct |
71 ms |
11096 KB |
Output is correct |
27 |
Correct |
52 ms |
11096 KB |
Output is correct |
28 |
Correct |
53 ms |
11352 KB |
Output is correct |
29 |
Correct |
57 ms |
11096 KB |
Output is correct |
30 |
Correct |
1 ms |
10840 KB |
Output is correct |
31 |
Correct |
94 ms |
31084 KB |
Output is correct |
32 |
Correct |
81 ms |
30576 KB |
Output is correct |
33 |
Correct |
91 ms |
27248 KB |
Output is correct |
34 |
Correct |
89 ms |
31776 KB |
Output is correct |
35 |
Correct |
51 ms |
20076 KB |
Output is correct |
36 |
Correct |
50 ms |
20128 KB |
Output is correct |
37 |
Correct |
92 ms |
20124 KB |
Output is correct |
38 |
Correct |
72 ms |
20076 KB |
Output is correct |
39 |
Correct |
70 ms |
20128 KB |
Output is correct |
40 |
Correct |
73 ms |
20512 KB |
Output is correct |
41 |
Correct |
103 ms |
25376 KB |
Output is correct |
42 |
Correct |
75 ms |
25452 KB |
Output is correct |
43 |
Correct |
112 ms |
25140 KB |
Output is correct |
44 |
Correct |
105 ms |
24444 KB |
Output is correct |
45 |
Correct |
112 ms |
34592 KB |
Output is correct |
46 |
Correct |
2 ms |
10840 KB |
Output is correct |
47 |
Correct |
2 ms |
10836 KB |
Output is correct |
48 |
Correct |
2 ms |
10840 KB |
Output is correct |
49 |
Correct |
1 ms |
10840 KB |
Output is correct |
50 |
Correct |
73 ms |
20308 KB |
Output is correct |
51 |
Correct |
71 ms |
20120 KB |
Output is correct |
52 |
Correct |
80 ms |
20128 KB |
Output is correct |
53 |
Correct |
105 ms |
20304 KB |
Output is correct |
54 |
Correct |
58 ms |
20960 KB |
Output is correct |
55 |
Correct |
59 ms |
21008 KB |
Output is correct |
56 |
Correct |
57 ms |
20936 KB |
Output is correct |
57 |
Correct |
66 ms |
21004 KB |
Output is correct |
58 |
Correct |
66 ms |
38760 KB |
Output is correct |
59 |
Correct |
63 ms |
38688 KB |
Output is correct |
60 |
Correct |
86 ms |
38688 KB |
Output is correct |
61 |
Correct |
62 ms |
38688 KB |
Output is correct |
62 |
Correct |
49 ms |
20048 KB |
Output is correct |
63 |
Correct |
53 ms |
20128 KB |
Output is correct |
64 |
Correct |
49 ms |
20048 KB |
Output is correct |
65 |
Correct |
51 ms |
20048 KB |
Output is correct |
66 |
Correct |
1 ms |
10840 KB |
Output is correct |
67 |
Correct |
1 ms |
10840 KB |
Output is correct |
68 |
Correct |
2 ms |
10840 KB |
Output is correct |
69 |
Correct |
2 ms |
10840 KB |
Output is correct |
70 |
Correct |
2 ms |
10840 KB |
Output is correct |
71 |
Correct |
2 ms |
10840 KB |
Output is correct |
72 |
Correct |
3 ms |
10840 KB |
Output is correct |
73 |
Correct |
49 ms |
11352 KB |
Output is correct |
74 |
Correct |
64 ms |
38688 KB |
Output is correct |
75 |
Correct |
61 ms |
38764 KB |
Output is correct |
76 |
Correct |
63 ms |
38788 KB |
Output is correct |
77 |
Correct |
71 ms |
38688 KB |
Output is correct |
78 |
Execution timed out |
3024 ms |
24508 KB |
Time limit exceeded |
79 |
Halted |
0 ms |
0 KB |
- |