/* Ignut
started: 11.08.2024
now: 11.08.2024
████████████████████████████████████████████████████████████████████
████████████████████████████████ ████████████████████████████████
██████████████████████████████ ██████████████████████████████
██████ ██████████████████ ██████████████████ ██████
██████ ██████████████ ██████████████ ██████
██████ ██ ████████████ ████████████ ██ ██████
██████ ████ ██████████ ██████████ ████ ██████
██████ ████ ██████████ ██████████ ████ ██████
██████ ████ ██████████ ██████████ ██████ ██████
██████ ██████ ██████████ ██████████ ██████ ██████
██████ ██████ ████████ ████████ ██████ ██████
██████ ██████ ██████ ██████ ██████ ██████
██████ ████ ████ ████ ████ ██████
██████ ██████████ ████ ██████████ ██████
██████ ██ ██████ ████████ ██████ ██ ██████
██████ ██████ ████████ ██████ ██████
██████ ██ ██ ██████
██████████████████████ ████ ████ ██████████████████████
████████████████████████ ██ ██ ████████████████████████
██████████████████████████ ██████████████████████████
██████████████████████████████ ██████████████████████████████
████████████████████████████████████████████████████████████████████
*/
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const int MOD = 1e9 + 2022;
void vadd(int &a, int b) {
a += a + b >= MOD ? b - MOD : b;
}
int mult(int a, int b) {
return 1ll * a * b % MOD;
}
// ===================================================== //
const int MAXN = 2e5 + 123;
int n, m;
vector<int> p, a;
vector<int> tree[MAXN];
void init(int N, int M, vector<int> P, vector<int> A) {
n = N, m = M;
a = A, p = P;
for (int i = 0; i < n + m; i ++) {
if (p[i] == -1) continue;
tree[p[i]].push_back(i);
}
}
pair<int, int> dfs(int v) {
if (v >= n) {
// cout << v << " : " << (1 ^ a[v - n]) << ", " << a[v - n] << '\n';
return {1 ^ a[v - n], a[v - n]};
}
vector<pair<int, int>> w;
for (int to : tree[v]) {
w.push_back(dfs(to));
}
int sz = w.size();
int dp[sz + 1] = {};
dp[0] = 1;
for (auto [prob0, prob1] : w) {
vector<int> nxt(sz + 1, 0);
for (int i = sz - 1; i >= 0; i --) {
vadd(nxt[i + 1], mult(dp[i], prob1));
vadd(nxt[i], mult(dp[i], prob0));
}
for (int i = 0; i <= sz; i ++) dp[i] = nxt[i];
}
// cout << v << " -- " << sz << '\n';
// for (int i = 0; i <= sz; i ++) cout << dp[i] << ' ';
// cout << '\n';
int r0 = 0, r1 = 0;
for (int i = 0; i <= sz; i ++) {
vadd(r1, mult(dp[i], i));
vadd(r0, mult(dp[i], sz - i));
}
// cout << v << " : " << r0 << ", " << r1 << '\n';
return {r0, r1};
}
int count_ways(int L, int R) {
L -= n, R -= n;
for (int i = L; i <= R; i ++) a[i] ^= 1;
int res = (dfs(0)).second;
return res;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
4952 KB |
Output is correct |
2 |
Correct |
1 ms |
4952 KB |
Output is correct |
3 |
Correct |
19 ms |
4952 KB |
Output is correct |
4 |
Correct |
18 ms |
4952 KB |
Output is correct |
5 |
Correct |
18 ms |
4952 KB |
Output is correct |
6 |
Correct |
20 ms |
4952 KB |
Output is correct |
7 |
Correct |
20 ms |
4952 KB |
Output is correct |
8 |
Correct |
18 ms |
4952 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
4952 KB |
Output is correct |
2 |
Correct |
1 ms |
4952 KB |
Output is correct |
3 |
Correct |
1 ms |
4952 KB |
Output is correct |
4 |
Correct |
1 ms |
4952 KB |
Output is correct |
5 |
Correct |
1 ms |
4952 KB |
Output is correct |
6 |
Correct |
1 ms |
4952 KB |
Output is correct |
7 |
Correct |
1 ms |
4952 KB |
Output is correct |
8 |
Correct |
2 ms |
4952 KB |
Output is correct |
9 |
Correct |
1 ms |
5116 KB |
Output is correct |
10 |
Correct |
2 ms |
5208 KB |
Output is correct |
11 |
Correct |
1 ms |
5208 KB |
Output is correct |
12 |
Correct |
1 ms |
4952 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
4952 KB |
Output is correct |
2 |
Correct |
1 ms |
4952 KB |
Output is correct |
3 |
Correct |
19 ms |
4952 KB |
Output is correct |
4 |
Correct |
18 ms |
4952 KB |
Output is correct |
5 |
Correct |
18 ms |
4952 KB |
Output is correct |
6 |
Correct |
20 ms |
4952 KB |
Output is correct |
7 |
Correct |
20 ms |
4952 KB |
Output is correct |
8 |
Correct |
18 ms |
4952 KB |
Output is correct |
9 |
Correct |
1 ms |
4952 KB |
Output is correct |
10 |
Correct |
1 ms |
4952 KB |
Output is correct |
11 |
Correct |
1 ms |
4952 KB |
Output is correct |
12 |
Correct |
1 ms |
4952 KB |
Output is correct |
13 |
Correct |
1 ms |
4952 KB |
Output is correct |
14 |
Correct |
1 ms |
4952 KB |
Output is correct |
15 |
Correct |
1 ms |
4952 KB |
Output is correct |
16 |
Correct |
2 ms |
4952 KB |
Output is correct |
17 |
Correct |
1 ms |
5116 KB |
Output is correct |
18 |
Correct |
2 ms |
5208 KB |
Output is correct |
19 |
Correct |
1 ms |
5208 KB |
Output is correct |
20 |
Correct |
1 ms |
4952 KB |
Output is correct |
21 |
Correct |
2 ms |
4952 KB |
Output is correct |
22 |
Correct |
1 ms |
4952 KB |
Output is correct |
23 |
Correct |
1 ms |
4952 KB |
Output is correct |
24 |
Correct |
2 ms |
4952 KB |
Output is correct |
25 |
Correct |
2 ms |
4952 KB |
Output is correct |
26 |
Correct |
1 ms |
4952 KB |
Output is correct |
27 |
Correct |
2 ms |
4952 KB |
Output is correct |
28 |
Correct |
2 ms |
4952 KB |
Output is correct |
29 |
Correct |
18 ms |
4952 KB |
Output is correct |
30 |
Correct |
18 ms |
4952 KB |
Output is correct |
31 |
Correct |
1 ms |
5208 KB |
Output is correct |
32 |
Correct |
2 ms |
4952 KB |
Output is correct |
33 |
Correct |
1 ms |
4952 KB |
Output is correct |
34 |
Correct |
1 ms |
4952 KB |
Output is correct |
35 |
Correct |
4 ms |
4952 KB |
Output is correct |
36 |
Correct |
1 ms |
5208 KB |
Output is correct |
37 |
Correct |
18 ms |
5208 KB |
Output is correct |
38 |
Correct |
18 ms |
5208 KB |
Output is correct |
39 |
Correct |
1 ms |
4952 KB |
Output is correct |
40 |
Correct |
1 ms |
4952 KB |
Output is correct |
41 |
Correct |
2 ms |
4952 KB |
Output is correct |
42 |
Correct |
2 ms |
4952 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
3029 ms |
7256 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
3029 ms |
7256 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
4952 KB |
Output is correct |
2 |
Correct |
1 ms |
4952 KB |
Output is correct |
3 |
Correct |
1 ms |
4952 KB |
Output is correct |
4 |
Correct |
1 ms |
4952 KB |
Output is correct |
5 |
Correct |
1 ms |
4952 KB |
Output is correct |
6 |
Correct |
1 ms |
4952 KB |
Output is correct |
7 |
Correct |
1 ms |
4952 KB |
Output is correct |
8 |
Correct |
2 ms |
4952 KB |
Output is correct |
9 |
Correct |
1 ms |
5116 KB |
Output is correct |
10 |
Correct |
2 ms |
5208 KB |
Output is correct |
11 |
Correct |
1 ms |
5208 KB |
Output is correct |
12 |
Correct |
1 ms |
4952 KB |
Output is correct |
13 |
Execution timed out |
3029 ms |
7256 KB |
Time limit exceeded |
14 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
4952 KB |
Output is correct |
2 |
Correct |
1 ms |
4952 KB |
Output is correct |
3 |
Correct |
19 ms |
4952 KB |
Output is correct |
4 |
Correct |
18 ms |
4952 KB |
Output is correct |
5 |
Correct |
18 ms |
4952 KB |
Output is correct |
6 |
Correct |
20 ms |
4952 KB |
Output is correct |
7 |
Correct |
20 ms |
4952 KB |
Output is correct |
8 |
Correct |
18 ms |
4952 KB |
Output is correct |
9 |
Correct |
1 ms |
4952 KB |
Output is correct |
10 |
Correct |
1 ms |
4952 KB |
Output is correct |
11 |
Correct |
1 ms |
4952 KB |
Output is correct |
12 |
Correct |
1 ms |
4952 KB |
Output is correct |
13 |
Correct |
1 ms |
4952 KB |
Output is correct |
14 |
Correct |
1 ms |
4952 KB |
Output is correct |
15 |
Correct |
1 ms |
4952 KB |
Output is correct |
16 |
Correct |
2 ms |
4952 KB |
Output is correct |
17 |
Correct |
1 ms |
5116 KB |
Output is correct |
18 |
Correct |
2 ms |
5208 KB |
Output is correct |
19 |
Correct |
1 ms |
5208 KB |
Output is correct |
20 |
Correct |
1 ms |
4952 KB |
Output is correct |
21 |
Correct |
2 ms |
4952 KB |
Output is correct |
22 |
Correct |
1 ms |
4952 KB |
Output is correct |
23 |
Correct |
1 ms |
4952 KB |
Output is correct |
24 |
Correct |
2 ms |
4952 KB |
Output is correct |
25 |
Correct |
2 ms |
4952 KB |
Output is correct |
26 |
Correct |
1 ms |
4952 KB |
Output is correct |
27 |
Correct |
2 ms |
4952 KB |
Output is correct |
28 |
Correct |
2 ms |
4952 KB |
Output is correct |
29 |
Correct |
18 ms |
4952 KB |
Output is correct |
30 |
Correct |
18 ms |
4952 KB |
Output is correct |
31 |
Correct |
1 ms |
5208 KB |
Output is correct |
32 |
Correct |
2 ms |
4952 KB |
Output is correct |
33 |
Correct |
1 ms |
4952 KB |
Output is correct |
34 |
Correct |
1 ms |
4952 KB |
Output is correct |
35 |
Correct |
4 ms |
4952 KB |
Output is correct |
36 |
Correct |
1 ms |
5208 KB |
Output is correct |
37 |
Correct |
18 ms |
5208 KB |
Output is correct |
38 |
Correct |
18 ms |
5208 KB |
Output is correct |
39 |
Correct |
1 ms |
4952 KB |
Output is correct |
40 |
Correct |
1 ms |
4952 KB |
Output is correct |
41 |
Correct |
2 ms |
4952 KB |
Output is correct |
42 |
Correct |
2 ms |
4952 KB |
Output is correct |
43 |
Execution timed out |
3054 ms |
5208 KB |
Time limit exceeded |
44 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
4952 KB |
Output is correct |
2 |
Correct |
1 ms |
4952 KB |
Output is correct |
3 |
Correct |
19 ms |
4952 KB |
Output is correct |
4 |
Correct |
18 ms |
4952 KB |
Output is correct |
5 |
Correct |
18 ms |
4952 KB |
Output is correct |
6 |
Correct |
20 ms |
4952 KB |
Output is correct |
7 |
Correct |
20 ms |
4952 KB |
Output is correct |
8 |
Correct |
18 ms |
4952 KB |
Output is correct |
9 |
Correct |
1 ms |
4952 KB |
Output is correct |
10 |
Correct |
1 ms |
4952 KB |
Output is correct |
11 |
Correct |
1 ms |
4952 KB |
Output is correct |
12 |
Correct |
1 ms |
4952 KB |
Output is correct |
13 |
Correct |
1 ms |
4952 KB |
Output is correct |
14 |
Correct |
1 ms |
4952 KB |
Output is correct |
15 |
Correct |
1 ms |
4952 KB |
Output is correct |
16 |
Correct |
2 ms |
4952 KB |
Output is correct |
17 |
Correct |
1 ms |
5116 KB |
Output is correct |
18 |
Correct |
2 ms |
5208 KB |
Output is correct |
19 |
Correct |
1 ms |
5208 KB |
Output is correct |
20 |
Correct |
1 ms |
4952 KB |
Output is correct |
21 |
Correct |
2 ms |
4952 KB |
Output is correct |
22 |
Correct |
1 ms |
4952 KB |
Output is correct |
23 |
Correct |
1 ms |
4952 KB |
Output is correct |
24 |
Correct |
2 ms |
4952 KB |
Output is correct |
25 |
Correct |
2 ms |
4952 KB |
Output is correct |
26 |
Correct |
1 ms |
4952 KB |
Output is correct |
27 |
Correct |
2 ms |
4952 KB |
Output is correct |
28 |
Correct |
2 ms |
4952 KB |
Output is correct |
29 |
Correct |
18 ms |
4952 KB |
Output is correct |
30 |
Correct |
18 ms |
4952 KB |
Output is correct |
31 |
Correct |
1 ms |
5208 KB |
Output is correct |
32 |
Correct |
2 ms |
4952 KB |
Output is correct |
33 |
Correct |
1 ms |
4952 KB |
Output is correct |
34 |
Correct |
1 ms |
4952 KB |
Output is correct |
35 |
Correct |
4 ms |
4952 KB |
Output is correct |
36 |
Correct |
1 ms |
5208 KB |
Output is correct |
37 |
Correct |
18 ms |
5208 KB |
Output is correct |
38 |
Correct |
18 ms |
5208 KB |
Output is correct |
39 |
Correct |
1 ms |
4952 KB |
Output is correct |
40 |
Correct |
1 ms |
4952 KB |
Output is correct |
41 |
Correct |
2 ms |
4952 KB |
Output is correct |
42 |
Correct |
2 ms |
4952 KB |
Output is correct |
43 |
Execution timed out |
3029 ms |
7256 KB |
Time limit exceeded |
44 |
Halted |
0 ms |
0 KB |
- |