#include "bits/extc++.h"
using namespace std;
template <typename T>
void dbgh(const T& t) {
cerr << t << endl;
}
template <typename T, typename... U>
void dbgh(const T& t, const U&... u) {
cerr << t << " | ";
dbgh(u...);
}
#ifdef DEBUG
#define dbg(...) \
cerr << "L" << __LINE__ << " [" << #__VA_ARGS__ << "]" \
<< ": "; \
dbgh(__VA_ARGS__)
#else
#define cerr \
if (false) \
cerr
#define dbg(...)
#endif
#define endl "\n"
#define long int64_t
#define sz(x) int((x).size())
const int maxn = 2e5 + 5;
const long mod = 1e9 + 2022;
int n;
vector<int> arr, graph[maxn];
long ways[maxn], contrib[maxn];
void pdfs(int u) {
ways[u] = 1;
for (auto& v : graph[u]) {
pdfs(v);
ways[u] = (ways[u] * ways[v]) % mod;
}
if (sz(graph[u])) {
ways[u] = (ways[u] * sz(graph[u])) % mod;
}
dbg(u, ways[u]);
}
void dfs(int u, long x = 1) {
int m = sz(graph[u]);
if (!m) {
dbg(u, x);
contrib[u] = x;
return;
}
long psum[m + 1], ssum[m + 1];
psum[0] = ssum[m] = 1;
for (int i = 0; i < m; i++) {
psum[i + 1] = (psum[i] * ways[graph[u][i]]) % mod;
}
for (int i = m - 1; i >= 0; i--) {
ssum[i] = (ssum[i + 1] * ways[graph[u][i]]) % mod;
}
for (int i = 0; i < m; i++) {
dfs(graph[u][i], x * psum[i] % mod * ssum[i + 1] % mod);
}
}
void init(int _n, int m, vector<int> p, vector<int> _arr) {
n = _n;
arr = _arr;
for (int i = 1; i < n + m; i++) {
graph[p[i]].push_back(i);
}
pdfs(0);
dfs(0);
copy(contrib + n, contrib + n + m, contrib);
}
int count_ways(int l, int r) {
l -= n;
r -= n;
for (int i = l; i <= r; i++) {
arr[i] ^= 1;
}
long ans = 0;
for (int i = 0; i < sz(arr); i++) {
ans += arr[i] * contrib[i];
}
return int(ans % mod);
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
4944 KB |
Output is correct |
2 |
Correct |
3 ms |
4944 KB |
Output is correct |
3 |
Correct |
3 ms |
4944 KB |
Output is correct |
4 |
Correct |
3 ms |
4944 KB |
Output is correct |
5 |
Correct |
4 ms |
4944 KB |
Output is correct |
6 |
Correct |
3 ms |
4944 KB |
Output is correct |
7 |
Correct |
4 ms |
4944 KB |
Output is correct |
8 |
Correct |
3 ms |
4944 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
4944 KB |
Output is correct |
2 |
Correct |
3 ms |
4944 KB |
Output is correct |
3 |
Correct |
2 ms |
4944 KB |
Output is correct |
4 |
Correct |
3 ms |
4944 KB |
Output is correct |
5 |
Correct |
3 ms |
4944 KB |
Output is correct |
6 |
Correct |
3 ms |
5072 KB |
Output is correct |
7 |
Correct |
3 ms |
5008 KB |
Output is correct |
8 |
Correct |
3 ms |
5072 KB |
Output is correct |
9 |
Correct |
3 ms |
5072 KB |
Output is correct |
10 |
Correct |
3 ms |
5200 KB |
Output is correct |
11 |
Correct |
3 ms |
5200 KB |
Output is correct |
12 |
Correct |
4 ms |
5072 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
4944 KB |
Output is correct |
2 |
Correct |
3 ms |
4944 KB |
Output is correct |
3 |
Correct |
3 ms |
4944 KB |
Output is correct |
4 |
Correct |
3 ms |
4944 KB |
Output is correct |
5 |
Correct |
4 ms |
4944 KB |
Output is correct |
6 |
Correct |
3 ms |
4944 KB |
Output is correct |
7 |
Correct |
4 ms |
4944 KB |
Output is correct |
8 |
Correct |
3 ms |
4944 KB |
Output is correct |
9 |
Correct |
2 ms |
4944 KB |
Output is correct |
10 |
Correct |
3 ms |
4944 KB |
Output is correct |
11 |
Correct |
2 ms |
4944 KB |
Output is correct |
12 |
Correct |
3 ms |
4944 KB |
Output is correct |
13 |
Correct |
3 ms |
4944 KB |
Output is correct |
14 |
Correct |
3 ms |
5072 KB |
Output is correct |
15 |
Correct |
3 ms |
5008 KB |
Output is correct |
16 |
Correct |
3 ms |
5072 KB |
Output is correct |
17 |
Correct |
3 ms |
5072 KB |
Output is correct |
18 |
Correct |
3 ms |
5200 KB |
Output is correct |
19 |
Correct |
3 ms |
5200 KB |
Output is correct |
20 |
Correct |
4 ms |
5072 KB |
Output is correct |
21 |
Correct |
3 ms |
5072 KB |
Output is correct |
22 |
Correct |
3 ms |
4944 KB |
Output is correct |
23 |
Correct |
3 ms |
4944 KB |
Output is correct |
24 |
Correct |
3 ms |
5072 KB |
Output is correct |
25 |
Correct |
4 ms |
5072 KB |
Output is correct |
26 |
Correct |
3 ms |
5072 KB |
Output is correct |
27 |
Correct |
4 ms |
5072 KB |
Output is correct |
28 |
Correct |
3 ms |
5072 KB |
Output is correct |
29 |
Correct |
2 ms |
4944 KB |
Output is correct |
30 |
Correct |
3 ms |
5040 KB |
Output is correct |
31 |
Correct |
4 ms |
5072 KB |
Output is correct |
32 |
Correct |
3 ms |
5072 KB |
Output is correct |
33 |
Correct |
3 ms |
4944 KB |
Output is correct |
34 |
Correct |
3 ms |
4944 KB |
Output is correct |
35 |
Correct |
3 ms |
4944 KB |
Output is correct |
36 |
Correct |
3 ms |
5120 KB |
Output is correct |
37 |
Correct |
3 ms |
5200 KB |
Output is correct |
38 |
Correct |
3 ms |
5200 KB |
Output is correct |
39 |
Correct |
3 ms |
5072 KB |
Output is correct |
40 |
Correct |
3 ms |
4944 KB |
Output is correct |
41 |
Correct |
3 ms |
4944 KB |
Output is correct |
42 |
Correct |
3 ms |
4944 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2455 ms |
7936 KB |
Output is correct |
2 |
Execution timed out |
3084 ms |
10844 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2455 ms |
7936 KB |
Output is correct |
2 |
Execution timed out |
3084 ms |
10844 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
4944 KB |
Output is correct |
2 |
Correct |
3 ms |
4944 KB |
Output is correct |
3 |
Correct |
2 ms |
4944 KB |
Output is correct |
4 |
Correct |
3 ms |
4944 KB |
Output is correct |
5 |
Correct |
3 ms |
4944 KB |
Output is correct |
6 |
Correct |
3 ms |
5072 KB |
Output is correct |
7 |
Correct |
3 ms |
5008 KB |
Output is correct |
8 |
Correct |
3 ms |
5072 KB |
Output is correct |
9 |
Correct |
3 ms |
5072 KB |
Output is correct |
10 |
Correct |
3 ms |
5200 KB |
Output is correct |
11 |
Correct |
3 ms |
5200 KB |
Output is correct |
12 |
Correct |
4 ms |
5072 KB |
Output is correct |
13 |
Correct |
2455 ms |
7936 KB |
Output is correct |
14 |
Execution timed out |
3084 ms |
10844 KB |
Time limit exceeded |
15 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
4944 KB |
Output is correct |
2 |
Correct |
3 ms |
4944 KB |
Output is correct |
3 |
Correct |
3 ms |
4944 KB |
Output is correct |
4 |
Correct |
3 ms |
4944 KB |
Output is correct |
5 |
Correct |
4 ms |
4944 KB |
Output is correct |
6 |
Correct |
3 ms |
4944 KB |
Output is correct |
7 |
Correct |
4 ms |
4944 KB |
Output is correct |
8 |
Correct |
3 ms |
4944 KB |
Output is correct |
9 |
Correct |
2 ms |
4944 KB |
Output is correct |
10 |
Correct |
3 ms |
4944 KB |
Output is correct |
11 |
Correct |
2 ms |
4944 KB |
Output is correct |
12 |
Correct |
3 ms |
4944 KB |
Output is correct |
13 |
Correct |
3 ms |
4944 KB |
Output is correct |
14 |
Correct |
3 ms |
5072 KB |
Output is correct |
15 |
Correct |
3 ms |
5008 KB |
Output is correct |
16 |
Correct |
3 ms |
5072 KB |
Output is correct |
17 |
Correct |
3 ms |
5072 KB |
Output is correct |
18 |
Correct |
3 ms |
5200 KB |
Output is correct |
19 |
Correct |
3 ms |
5200 KB |
Output is correct |
20 |
Correct |
4 ms |
5072 KB |
Output is correct |
21 |
Correct |
3 ms |
5072 KB |
Output is correct |
22 |
Correct |
3 ms |
4944 KB |
Output is correct |
23 |
Correct |
3 ms |
4944 KB |
Output is correct |
24 |
Correct |
3 ms |
5072 KB |
Output is correct |
25 |
Correct |
4 ms |
5072 KB |
Output is correct |
26 |
Correct |
3 ms |
5072 KB |
Output is correct |
27 |
Correct |
4 ms |
5072 KB |
Output is correct |
28 |
Correct |
3 ms |
5072 KB |
Output is correct |
29 |
Correct |
2 ms |
4944 KB |
Output is correct |
30 |
Correct |
3 ms |
5040 KB |
Output is correct |
31 |
Correct |
4 ms |
5072 KB |
Output is correct |
32 |
Correct |
3 ms |
5072 KB |
Output is correct |
33 |
Correct |
3 ms |
4944 KB |
Output is correct |
34 |
Correct |
3 ms |
4944 KB |
Output is correct |
35 |
Correct |
3 ms |
4944 KB |
Output is correct |
36 |
Correct |
3 ms |
5120 KB |
Output is correct |
37 |
Correct |
3 ms |
5200 KB |
Output is correct |
38 |
Correct |
3 ms |
5200 KB |
Output is correct |
39 |
Correct |
3 ms |
5072 KB |
Output is correct |
40 |
Correct |
3 ms |
4944 KB |
Output is correct |
41 |
Correct |
3 ms |
4944 KB |
Output is correct |
42 |
Correct |
3 ms |
4944 KB |
Output is correct |
43 |
Correct |
827 ms |
5200 KB |
Output is correct |
44 |
Correct |
1098 ms |
5200 KB |
Output is correct |
45 |
Correct |
1106 ms |
5200 KB |
Output is correct |
46 |
Correct |
1259 ms |
5456 KB |
Output is correct |
47 |
Correct |
1288 ms |
5420 KB |
Output is correct |
48 |
Correct |
1278 ms |
5456 KB |
Output is correct |
49 |
Correct |
1475 ms |
5456 KB |
Output is correct |
50 |
Correct |
1399 ms |
5456 KB |
Output is correct |
51 |
Correct |
1187 ms |
5200 KB |
Output is correct |
52 |
Correct |
1317 ms |
5200 KB |
Output is correct |
53 |
Correct |
821 ms |
5888 KB |
Output is correct |
54 |
Correct |
1123 ms |
5436 KB |
Output is correct |
55 |
Correct |
1356 ms |
5200 KB |
Output is correct |
56 |
Correct |
1336 ms |
5200 KB |
Output is correct |
57 |
Correct |
1282 ms |
5200 KB |
Output is correct |
58 |
Correct |
1267 ms |
6224 KB |
Output is correct |
59 |
Correct |
1183 ms |
6192 KB |
Output is correct |
60 |
Correct |
1223 ms |
6184 KB |
Output is correct |
61 |
Correct |
1014 ms |
5456 KB |
Output is correct |
62 |
Correct |
1276 ms |
5200 KB |
Output is correct |
63 |
Correct |
1121 ms |
5200 KB |
Output is correct |
64 |
Correct |
1351 ms |
5200 KB |
Output is correct |
65 |
Correct |
594 ms |
5072 KB |
Output is correct |
66 |
Correct |
1177 ms |
5248 KB |
Output is correct |
67 |
Correct |
1256 ms |
5248 KB |
Output is correct |
68 |
Correct |
1336 ms |
5328 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
4944 KB |
Output is correct |
2 |
Correct |
3 ms |
4944 KB |
Output is correct |
3 |
Correct |
3 ms |
4944 KB |
Output is correct |
4 |
Correct |
3 ms |
4944 KB |
Output is correct |
5 |
Correct |
4 ms |
4944 KB |
Output is correct |
6 |
Correct |
3 ms |
4944 KB |
Output is correct |
7 |
Correct |
4 ms |
4944 KB |
Output is correct |
8 |
Correct |
3 ms |
4944 KB |
Output is correct |
9 |
Correct |
2 ms |
4944 KB |
Output is correct |
10 |
Correct |
3 ms |
4944 KB |
Output is correct |
11 |
Correct |
2 ms |
4944 KB |
Output is correct |
12 |
Correct |
3 ms |
4944 KB |
Output is correct |
13 |
Correct |
3 ms |
4944 KB |
Output is correct |
14 |
Correct |
3 ms |
5072 KB |
Output is correct |
15 |
Correct |
3 ms |
5008 KB |
Output is correct |
16 |
Correct |
3 ms |
5072 KB |
Output is correct |
17 |
Correct |
3 ms |
5072 KB |
Output is correct |
18 |
Correct |
3 ms |
5200 KB |
Output is correct |
19 |
Correct |
3 ms |
5200 KB |
Output is correct |
20 |
Correct |
4 ms |
5072 KB |
Output is correct |
21 |
Correct |
3 ms |
5072 KB |
Output is correct |
22 |
Correct |
3 ms |
4944 KB |
Output is correct |
23 |
Correct |
3 ms |
4944 KB |
Output is correct |
24 |
Correct |
3 ms |
5072 KB |
Output is correct |
25 |
Correct |
4 ms |
5072 KB |
Output is correct |
26 |
Correct |
3 ms |
5072 KB |
Output is correct |
27 |
Correct |
4 ms |
5072 KB |
Output is correct |
28 |
Correct |
3 ms |
5072 KB |
Output is correct |
29 |
Correct |
2 ms |
4944 KB |
Output is correct |
30 |
Correct |
3 ms |
5040 KB |
Output is correct |
31 |
Correct |
4 ms |
5072 KB |
Output is correct |
32 |
Correct |
3 ms |
5072 KB |
Output is correct |
33 |
Correct |
3 ms |
4944 KB |
Output is correct |
34 |
Correct |
3 ms |
4944 KB |
Output is correct |
35 |
Correct |
3 ms |
4944 KB |
Output is correct |
36 |
Correct |
3 ms |
5120 KB |
Output is correct |
37 |
Correct |
3 ms |
5200 KB |
Output is correct |
38 |
Correct |
3 ms |
5200 KB |
Output is correct |
39 |
Correct |
3 ms |
5072 KB |
Output is correct |
40 |
Correct |
3 ms |
4944 KB |
Output is correct |
41 |
Correct |
3 ms |
4944 KB |
Output is correct |
42 |
Correct |
3 ms |
4944 KB |
Output is correct |
43 |
Correct |
2455 ms |
7936 KB |
Output is correct |
44 |
Execution timed out |
3084 ms |
10844 KB |
Time limit exceeded |
45 |
Halted |
0 ms |
0 KB |
- |