#include <bits/stdc++.h>
#define ent '\n'
using namespace std;
typedef long long ll;
const int maxn = 1e5 + 12;
const int mod = 1e9 + 2022;
vector<int> g[maxn];
ll dp[2005][2005];
ll ways[2005][2];
int p[maxn];
int a[maxn];
int n, m;
void init(int N, int M, std::vector<int> P, std::vector<int> A){
n = N, m = M;
for(int i=0;i<n+m;i++){
p[i] = P[i];
if(i >= n) a[i] = A[i-n];
if(i >= 1) g[p[i]].push_back(i);
}
}
int count_ways(int L, int R){
for(int i=L;i<=R;i++){
a[i] ^= 1;
}
for(int i=n;i<n+m;i++){
ways[i][a[i]] = 1;
ways[i][1-a[i]] = 0;
}
for(int v=n-1;v>=0;v--){
for(int i=0;i<=n+m;i++){
dp[v][i] = 0;
}
dp[v][0] = 1;
ways[v][0] = ways[v][1] = 0;
for(int to:g[v]){
for(int i=g[v].size();i>=0;i--){
dp[v][i] = (dp[v][i] * ways[to][0]) % mod;
if(i > 0) dp[v][i] = (dp[v][i] + dp[v][i-1] * ways[to][1]) % mod;
}
}
for(int i=0;i<=(int)g[v].size();i++){
ways[v][0] = (ways[v][0] + dp[v][i] * ((int)g[v].size() - i)) % mod;
ways[v][1] = (ways[v][1] + dp[v][i] * i) % mod;
}
}
return ways[0][1];
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
5976 KB |
Output is correct |
2 |
Correct |
1 ms |
5976 KB |
Output is correct |
3 |
Correct |
12 ms |
5976 KB |
Output is correct |
4 |
Correct |
12 ms |
5976 KB |
Output is correct |
5 |
Correct |
13 ms |
5976 KB |
Output is correct |
6 |
Correct |
13 ms |
5976 KB |
Output is correct |
7 |
Correct |
13 ms |
5976 KB |
Output is correct |
8 |
Correct |
13 ms |
5976 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
5976 KB |
Output is correct |
2 |
Correct |
2 ms |
10072 KB |
Output is correct |
3 |
Correct |
3 ms |
14168 KB |
Output is correct |
4 |
Correct |
3 ms |
14168 KB |
Output is correct |
5 |
Correct |
2 ms |
14168 KB |
Output is correct |
6 |
Correct |
3 ms |
16216 KB |
Output is correct |
7 |
Correct |
5 ms |
20568 KB |
Output is correct |
8 |
Correct |
5 ms |
20568 KB |
Output is correct |
9 |
Correct |
4 ms |
20568 KB |
Output is correct |
10 |
Correct |
4 ms |
20568 KB |
Output is correct |
11 |
Correct |
5 ms |
20568 KB |
Output is correct |
12 |
Correct |
4 ms |
18520 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
5976 KB |
Output is correct |
2 |
Correct |
1 ms |
5976 KB |
Output is correct |
3 |
Correct |
12 ms |
5976 KB |
Output is correct |
4 |
Correct |
12 ms |
5976 KB |
Output is correct |
5 |
Correct |
13 ms |
5976 KB |
Output is correct |
6 |
Correct |
13 ms |
5976 KB |
Output is correct |
7 |
Correct |
13 ms |
5976 KB |
Output is correct |
8 |
Correct |
13 ms |
5976 KB |
Output is correct |
9 |
Correct |
1 ms |
5976 KB |
Output is correct |
10 |
Correct |
2 ms |
10072 KB |
Output is correct |
11 |
Correct |
3 ms |
14168 KB |
Output is correct |
12 |
Correct |
3 ms |
14168 KB |
Output is correct |
13 |
Correct |
2 ms |
14168 KB |
Output is correct |
14 |
Correct |
3 ms |
16216 KB |
Output is correct |
15 |
Correct |
5 ms |
20568 KB |
Output is correct |
16 |
Correct |
5 ms |
20568 KB |
Output is correct |
17 |
Correct |
4 ms |
20568 KB |
Output is correct |
18 |
Correct |
4 ms |
20568 KB |
Output is correct |
19 |
Correct |
5 ms |
20568 KB |
Output is correct |
20 |
Correct |
4 ms |
18520 KB |
Output is correct |
21 |
Correct |
4 ms |
16216 KB |
Output is correct |
22 |
Correct |
4 ms |
18264 KB |
Output is correct |
23 |
Correct |
3 ms |
16216 KB |
Output is correct |
24 |
Correct |
5 ms |
20568 KB |
Output is correct |
25 |
Correct |
5 ms |
20568 KB |
Output is correct |
26 |
Correct |
5 ms |
20568 KB |
Output is correct |
27 |
Correct |
5 ms |
20568 KB |
Output is correct |
28 |
Correct |
5 ms |
20568 KB |
Output is correct |
29 |
Correct |
12 ms |
5976 KB |
Output is correct |
30 |
Correct |
14 ms |
5976 KB |
Output is correct |
31 |
Correct |
4 ms |
20312 KB |
Output is correct |
32 |
Correct |
5 ms |
20568 KB |
Output is correct |
33 |
Correct |
3 ms |
14168 KB |
Output is correct |
34 |
Correct |
2 ms |
10144 KB |
Output is correct |
35 |
Correct |
4 ms |
5976 KB |
Output is correct |
36 |
Correct |
5 ms |
20568 KB |
Output is correct |
37 |
Correct |
16 ms |
20568 KB |
Output is correct |
38 |
Correct |
17 ms |
20568 KB |
Output is correct |
39 |
Correct |
3 ms |
16216 KB |
Output is correct |
40 |
Correct |
3 ms |
14168 KB |
Output is correct |
41 |
Correct |
3 ms |
12120 KB |
Output is correct |
42 |
Correct |
2 ms |
5976 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
14 ms |
15056 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
14 ms |
15056 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
5976 KB |
Output is correct |
2 |
Correct |
2 ms |
10072 KB |
Output is correct |
3 |
Correct |
3 ms |
14168 KB |
Output is correct |
4 |
Correct |
3 ms |
14168 KB |
Output is correct |
5 |
Correct |
2 ms |
14168 KB |
Output is correct |
6 |
Correct |
3 ms |
16216 KB |
Output is correct |
7 |
Correct |
5 ms |
20568 KB |
Output is correct |
8 |
Correct |
5 ms |
20568 KB |
Output is correct |
9 |
Correct |
4 ms |
20568 KB |
Output is correct |
10 |
Correct |
4 ms |
20568 KB |
Output is correct |
11 |
Correct |
5 ms |
20568 KB |
Output is correct |
12 |
Correct |
4 ms |
18520 KB |
Output is correct |
13 |
Runtime error |
14 ms |
15056 KB |
Execution killed with signal 11 |
14 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
5976 KB |
Output is correct |
2 |
Correct |
1 ms |
5976 KB |
Output is correct |
3 |
Correct |
12 ms |
5976 KB |
Output is correct |
4 |
Correct |
12 ms |
5976 KB |
Output is correct |
5 |
Correct |
13 ms |
5976 KB |
Output is correct |
6 |
Correct |
13 ms |
5976 KB |
Output is correct |
7 |
Correct |
13 ms |
5976 KB |
Output is correct |
8 |
Correct |
13 ms |
5976 KB |
Output is correct |
9 |
Correct |
1 ms |
5976 KB |
Output is correct |
10 |
Correct |
2 ms |
10072 KB |
Output is correct |
11 |
Correct |
3 ms |
14168 KB |
Output is correct |
12 |
Correct |
3 ms |
14168 KB |
Output is correct |
13 |
Correct |
2 ms |
14168 KB |
Output is correct |
14 |
Correct |
3 ms |
16216 KB |
Output is correct |
15 |
Correct |
5 ms |
20568 KB |
Output is correct |
16 |
Correct |
5 ms |
20568 KB |
Output is correct |
17 |
Correct |
4 ms |
20568 KB |
Output is correct |
18 |
Correct |
4 ms |
20568 KB |
Output is correct |
19 |
Correct |
5 ms |
20568 KB |
Output is correct |
20 |
Correct |
4 ms |
18520 KB |
Output is correct |
21 |
Correct |
4 ms |
16216 KB |
Output is correct |
22 |
Correct |
4 ms |
18264 KB |
Output is correct |
23 |
Correct |
3 ms |
16216 KB |
Output is correct |
24 |
Correct |
5 ms |
20568 KB |
Output is correct |
25 |
Correct |
5 ms |
20568 KB |
Output is correct |
26 |
Correct |
5 ms |
20568 KB |
Output is correct |
27 |
Correct |
5 ms |
20568 KB |
Output is correct |
28 |
Correct |
5 ms |
20568 KB |
Output is correct |
29 |
Correct |
12 ms |
5976 KB |
Output is correct |
30 |
Correct |
14 ms |
5976 KB |
Output is correct |
31 |
Correct |
4 ms |
20312 KB |
Output is correct |
32 |
Correct |
5 ms |
20568 KB |
Output is correct |
33 |
Correct |
3 ms |
14168 KB |
Output is correct |
34 |
Correct |
2 ms |
10144 KB |
Output is correct |
35 |
Correct |
4 ms |
5976 KB |
Output is correct |
36 |
Correct |
5 ms |
20568 KB |
Output is correct |
37 |
Correct |
16 ms |
20568 KB |
Output is correct |
38 |
Correct |
17 ms |
20568 KB |
Output is correct |
39 |
Correct |
3 ms |
16216 KB |
Output is correct |
40 |
Correct |
3 ms |
14168 KB |
Output is correct |
41 |
Correct |
3 ms |
12120 KB |
Output is correct |
42 |
Correct |
2 ms |
5976 KB |
Output is correct |
43 |
Runtime error |
7 ms |
12376 KB |
Execution killed with signal 11 |
44 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
5976 KB |
Output is correct |
2 |
Correct |
1 ms |
5976 KB |
Output is correct |
3 |
Correct |
12 ms |
5976 KB |
Output is correct |
4 |
Correct |
12 ms |
5976 KB |
Output is correct |
5 |
Correct |
13 ms |
5976 KB |
Output is correct |
6 |
Correct |
13 ms |
5976 KB |
Output is correct |
7 |
Correct |
13 ms |
5976 KB |
Output is correct |
8 |
Correct |
13 ms |
5976 KB |
Output is correct |
9 |
Correct |
1 ms |
5976 KB |
Output is correct |
10 |
Correct |
2 ms |
10072 KB |
Output is correct |
11 |
Correct |
3 ms |
14168 KB |
Output is correct |
12 |
Correct |
3 ms |
14168 KB |
Output is correct |
13 |
Correct |
2 ms |
14168 KB |
Output is correct |
14 |
Correct |
3 ms |
16216 KB |
Output is correct |
15 |
Correct |
5 ms |
20568 KB |
Output is correct |
16 |
Correct |
5 ms |
20568 KB |
Output is correct |
17 |
Correct |
4 ms |
20568 KB |
Output is correct |
18 |
Correct |
4 ms |
20568 KB |
Output is correct |
19 |
Correct |
5 ms |
20568 KB |
Output is correct |
20 |
Correct |
4 ms |
18520 KB |
Output is correct |
21 |
Correct |
4 ms |
16216 KB |
Output is correct |
22 |
Correct |
4 ms |
18264 KB |
Output is correct |
23 |
Correct |
3 ms |
16216 KB |
Output is correct |
24 |
Correct |
5 ms |
20568 KB |
Output is correct |
25 |
Correct |
5 ms |
20568 KB |
Output is correct |
26 |
Correct |
5 ms |
20568 KB |
Output is correct |
27 |
Correct |
5 ms |
20568 KB |
Output is correct |
28 |
Correct |
5 ms |
20568 KB |
Output is correct |
29 |
Correct |
12 ms |
5976 KB |
Output is correct |
30 |
Correct |
14 ms |
5976 KB |
Output is correct |
31 |
Correct |
4 ms |
20312 KB |
Output is correct |
32 |
Correct |
5 ms |
20568 KB |
Output is correct |
33 |
Correct |
3 ms |
14168 KB |
Output is correct |
34 |
Correct |
2 ms |
10144 KB |
Output is correct |
35 |
Correct |
4 ms |
5976 KB |
Output is correct |
36 |
Correct |
5 ms |
20568 KB |
Output is correct |
37 |
Correct |
16 ms |
20568 KB |
Output is correct |
38 |
Correct |
17 ms |
20568 KB |
Output is correct |
39 |
Correct |
3 ms |
16216 KB |
Output is correct |
40 |
Correct |
3 ms |
14168 KB |
Output is correct |
41 |
Correct |
3 ms |
12120 KB |
Output is correct |
42 |
Correct |
2 ms |
5976 KB |
Output is correct |
43 |
Runtime error |
14 ms |
15056 KB |
Execution killed with signal 11 |
44 |
Halted |
0 ms |
0 KB |
- |