// time_limit/solution-hocky-quadratic-dp.cpp
#include "circuit.h"
#include <bits/stdc++.h>
using namespace std;
const int kMod = (int) 1e9 + 2022;
struct Tree {
int n, m;
vector<int> parent, is_on;
vector<vector<int>> edge;
vector<int> memo[2];
Tree(int n_init, int m_init, vector<int> parent_init, vector<int> on_init) :
n(n_init),
m(m_init),
parent(parent_init),
is_on(on_init),
edge(n + m) {
reverse(is_on.begin(), is_on.end());
is_on.resize(n + m);
reverse(is_on.begin(), is_on.end());
for (int i = 1; i < n + m; i++) {
edge[parent[i]].push_back(i);
}
memo[0].resize(n + m, -1);
memo[1].resize(n + m, -1);
}
bool is_leaf(int pos) {
return pos >= n;
}
void toggle(pair<int, int> toggle_bounds) {
for (int i = toggle_bounds.first; i <= toggle_bounds.second; i++) {
is_on[i] ^= 1;
}
}
void reset_memo() {
memo[0].assign(n + m, 0);
memo[1].assign(n + m, 0);
}
int dp(int pos, int intend) {
return memo[intend][pos];
}
void dp(int pos) {
if (is_leaf(pos)) {
memo[is_on[pos]][pos] = 1;
memo[!is_on[pos]][pos] = 0;
return;
}
for (const auto &nx : edge[pos]) dp(nx);
int child_size = edge[pos].size();
vector<int> knapsack(1, 1);
for (const auto &nx : edge[pos]) {
int current_size = knapsack.size();
knapsack.push_back(0);
for (int i = current_size; i >= 0; i--) {
knapsack[i] = 1LL * knapsack[i] * dp(nx, 0) % kMod;
if(i - 1 >= 0) knapsack[i] += 1LL * knapsack[i - 1] * dp(nx, 1) % kMod;
knapsack[i] %= kMod;
}
}
for (int i = 1; i <= child_size; i++) knapsack[i] = (knapsack[i] + knapsack[i - 1]) % kMod;
auto _get_sum = [&](int l, int r) -> int {
int return_value = knapsack[r] + kMod;
if (l > 0) return_value -= knapsack[l - 1];
if (return_value >= kMod) return_value -= kMod;
return return_value;
};
for (int i = 1; i <= child_size; i++) {
memo[1][pos] = (memo[1][pos] + _get_sum(i, child_size)) % kMod;
memo[0][pos] = (memo[0][pos] + _get_sum(0, i - 1)) % kMod;
}
}
};
Tree *solution;
void init(int N, int M, vector<int> P, vector<int> A) {
solution = new Tree(N, M, P, A);
}
int count_ways(int L, int R) {
solution->reset_memo();
solution->toggle({L, R});
solution->dp(0);
return solution->dp(0, 1);
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
208 KB |
Output is correct |
3 |
Correct |
14 ms |
336 KB |
Output is correct |
4 |
Correct |
17 ms |
364 KB |
Output is correct |
5 |
Correct |
22 ms |
336 KB |
Output is correct |
6 |
Correct |
20 ms |
368 KB |
Output is correct |
7 |
Correct |
23 ms |
336 KB |
Output is correct |
8 |
Correct |
19 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
336 KB |
Output is correct |
3 |
Correct |
2 ms |
336 KB |
Output is correct |
4 |
Correct |
2 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
336 KB |
Output is correct |
7 |
Correct |
2 ms |
336 KB |
Output is correct |
8 |
Correct |
3 ms |
336 KB |
Output is correct |
9 |
Correct |
1 ms |
336 KB |
Output is correct |
10 |
Correct |
2 ms |
464 KB |
Output is correct |
11 |
Correct |
2 ms |
500 KB |
Output is correct |
12 |
Correct |
2 ms |
336 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
208 KB |
Output is correct |
3 |
Correct |
14 ms |
336 KB |
Output is correct |
4 |
Correct |
17 ms |
364 KB |
Output is correct |
5 |
Correct |
22 ms |
336 KB |
Output is correct |
6 |
Correct |
20 ms |
368 KB |
Output is correct |
7 |
Correct |
23 ms |
336 KB |
Output is correct |
8 |
Correct |
19 ms |
376 KB |
Output is correct |
9 |
Correct |
1 ms |
256 KB |
Output is correct |
10 |
Correct |
1 ms |
336 KB |
Output is correct |
11 |
Correct |
2 ms |
336 KB |
Output is correct |
12 |
Correct |
2 ms |
336 KB |
Output is correct |
13 |
Correct |
1 ms |
384 KB |
Output is correct |
14 |
Correct |
2 ms |
336 KB |
Output is correct |
15 |
Correct |
2 ms |
336 KB |
Output is correct |
16 |
Correct |
3 ms |
336 KB |
Output is correct |
17 |
Correct |
1 ms |
336 KB |
Output is correct |
18 |
Correct |
2 ms |
464 KB |
Output is correct |
19 |
Correct |
2 ms |
500 KB |
Output is correct |
20 |
Correct |
2 ms |
336 KB |
Output is correct |
21 |
Correct |
2 ms |
336 KB |
Output is correct |
22 |
Correct |
1 ms |
336 KB |
Output is correct |
23 |
Correct |
1 ms |
384 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
2 ms |
336 KB |
Output is correct |
26 |
Correct |
2 ms |
336 KB |
Output is correct |
27 |
Correct |
2 ms |
336 KB |
Output is correct |
28 |
Correct |
2 ms |
336 KB |
Output is correct |
29 |
Correct |
24 ms |
384 KB |
Output is correct |
30 |
Correct |
31 ms |
384 KB |
Output is correct |
31 |
Correct |
2 ms |
464 KB |
Output is correct |
32 |
Correct |
2 ms |
384 KB |
Output is correct |
33 |
Correct |
2 ms |
336 KB |
Output is correct |
34 |
Correct |
1 ms |
336 KB |
Output is correct |
35 |
Correct |
5 ms |
384 KB |
Output is correct |
36 |
Correct |
2 ms |
464 KB |
Output is correct |
37 |
Correct |
23 ms |
464 KB |
Output is correct |
38 |
Correct |
22 ms |
464 KB |
Output is correct |
39 |
Correct |
2 ms |
336 KB |
Output is correct |
40 |
Correct |
2 ms |
336 KB |
Output is correct |
41 |
Correct |
1 ms |
336 KB |
Output is correct |
42 |
Correct |
1 ms |
336 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
3077 ms |
5060 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
3077 ms |
5060 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
336 KB |
Output is correct |
3 |
Correct |
2 ms |
336 KB |
Output is correct |
4 |
Correct |
2 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
336 KB |
Output is correct |
7 |
Correct |
2 ms |
336 KB |
Output is correct |
8 |
Correct |
3 ms |
336 KB |
Output is correct |
9 |
Correct |
1 ms |
336 KB |
Output is correct |
10 |
Correct |
2 ms |
464 KB |
Output is correct |
11 |
Correct |
2 ms |
500 KB |
Output is correct |
12 |
Correct |
2 ms |
336 KB |
Output is correct |
13 |
Execution timed out |
3077 ms |
5060 KB |
Time limit exceeded |
14 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
208 KB |
Output is correct |
3 |
Correct |
14 ms |
336 KB |
Output is correct |
4 |
Correct |
17 ms |
364 KB |
Output is correct |
5 |
Correct |
22 ms |
336 KB |
Output is correct |
6 |
Correct |
20 ms |
368 KB |
Output is correct |
7 |
Correct |
23 ms |
336 KB |
Output is correct |
8 |
Correct |
19 ms |
376 KB |
Output is correct |
9 |
Correct |
1 ms |
256 KB |
Output is correct |
10 |
Correct |
1 ms |
336 KB |
Output is correct |
11 |
Correct |
2 ms |
336 KB |
Output is correct |
12 |
Correct |
2 ms |
336 KB |
Output is correct |
13 |
Correct |
1 ms |
384 KB |
Output is correct |
14 |
Correct |
2 ms |
336 KB |
Output is correct |
15 |
Correct |
2 ms |
336 KB |
Output is correct |
16 |
Correct |
3 ms |
336 KB |
Output is correct |
17 |
Correct |
1 ms |
336 KB |
Output is correct |
18 |
Correct |
2 ms |
464 KB |
Output is correct |
19 |
Correct |
2 ms |
500 KB |
Output is correct |
20 |
Correct |
2 ms |
336 KB |
Output is correct |
21 |
Correct |
2 ms |
336 KB |
Output is correct |
22 |
Correct |
1 ms |
336 KB |
Output is correct |
23 |
Correct |
1 ms |
384 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
2 ms |
336 KB |
Output is correct |
26 |
Correct |
2 ms |
336 KB |
Output is correct |
27 |
Correct |
2 ms |
336 KB |
Output is correct |
28 |
Correct |
2 ms |
336 KB |
Output is correct |
29 |
Correct |
24 ms |
384 KB |
Output is correct |
30 |
Correct |
31 ms |
384 KB |
Output is correct |
31 |
Correct |
2 ms |
464 KB |
Output is correct |
32 |
Correct |
2 ms |
384 KB |
Output is correct |
33 |
Correct |
2 ms |
336 KB |
Output is correct |
34 |
Correct |
1 ms |
336 KB |
Output is correct |
35 |
Correct |
5 ms |
384 KB |
Output is correct |
36 |
Correct |
2 ms |
464 KB |
Output is correct |
37 |
Correct |
23 ms |
464 KB |
Output is correct |
38 |
Correct |
22 ms |
464 KB |
Output is correct |
39 |
Correct |
2 ms |
336 KB |
Output is correct |
40 |
Correct |
2 ms |
336 KB |
Output is correct |
41 |
Correct |
1 ms |
336 KB |
Output is correct |
42 |
Correct |
1 ms |
336 KB |
Output is correct |
43 |
Execution timed out |
3061 ms |
720 KB |
Time limit exceeded |
44 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
208 KB |
Output is correct |
3 |
Correct |
14 ms |
336 KB |
Output is correct |
4 |
Correct |
17 ms |
364 KB |
Output is correct |
5 |
Correct |
22 ms |
336 KB |
Output is correct |
6 |
Correct |
20 ms |
368 KB |
Output is correct |
7 |
Correct |
23 ms |
336 KB |
Output is correct |
8 |
Correct |
19 ms |
376 KB |
Output is correct |
9 |
Correct |
1 ms |
256 KB |
Output is correct |
10 |
Correct |
1 ms |
336 KB |
Output is correct |
11 |
Correct |
2 ms |
336 KB |
Output is correct |
12 |
Correct |
2 ms |
336 KB |
Output is correct |
13 |
Correct |
1 ms |
384 KB |
Output is correct |
14 |
Correct |
2 ms |
336 KB |
Output is correct |
15 |
Correct |
2 ms |
336 KB |
Output is correct |
16 |
Correct |
3 ms |
336 KB |
Output is correct |
17 |
Correct |
1 ms |
336 KB |
Output is correct |
18 |
Correct |
2 ms |
464 KB |
Output is correct |
19 |
Correct |
2 ms |
500 KB |
Output is correct |
20 |
Correct |
2 ms |
336 KB |
Output is correct |
21 |
Correct |
2 ms |
336 KB |
Output is correct |
22 |
Correct |
1 ms |
336 KB |
Output is correct |
23 |
Correct |
1 ms |
384 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
2 ms |
336 KB |
Output is correct |
26 |
Correct |
2 ms |
336 KB |
Output is correct |
27 |
Correct |
2 ms |
336 KB |
Output is correct |
28 |
Correct |
2 ms |
336 KB |
Output is correct |
29 |
Correct |
24 ms |
384 KB |
Output is correct |
30 |
Correct |
31 ms |
384 KB |
Output is correct |
31 |
Correct |
2 ms |
464 KB |
Output is correct |
32 |
Correct |
2 ms |
384 KB |
Output is correct |
33 |
Correct |
2 ms |
336 KB |
Output is correct |
34 |
Correct |
1 ms |
336 KB |
Output is correct |
35 |
Correct |
5 ms |
384 KB |
Output is correct |
36 |
Correct |
2 ms |
464 KB |
Output is correct |
37 |
Correct |
23 ms |
464 KB |
Output is correct |
38 |
Correct |
22 ms |
464 KB |
Output is correct |
39 |
Correct |
2 ms |
336 KB |
Output is correct |
40 |
Correct |
2 ms |
336 KB |
Output is correct |
41 |
Correct |
1 ms |
336 KB |
Output is correct |
42 |
Correct |
1 ms |
336 KB |
Output is correct |
43 |
Execution timed out |
3077 ms |
5060 KB |
Time limit exceeded |
44 |
Halted |
0 ms |
0 KB |
- |