#include <bits/stdc++.h>
//#include "bits_stdc++.h"
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
#define endl '\n'
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define lb lower_bound
#define ub upper_bound
#define input(x) scanf("%lld", &x);
#define input2(x, y) scanf("%lld%lld", &x, &y);
#define input3(x, y, z) scanf("%lld%lld%lld", &x, &y, &z);
#define input4(x, y, z, a) scanf("%lld%lld%lld%lld", &x, &y, &z, &a);
#define print(x, y) printf("%lld%c", x, y);
#define show(x) cerr << #x << " is " << x << endl;
#define show2(x,y) cerr << #x << " is " << x << " " << #y << " is " << y << endl;
#define show3(x,y,z) cerr << #x << " is " << x << " " << #y << " is " << y << " " << #z << " is " << z << endl;
#define all(x) x.begin(), x.end()
#define discretize(x) sort(x.begin(), x.end()); x.erase(unique(x.begin(), x.end()), x.end());
#define FOR(i, x, n) for (ll i =x; i<=n; ++i)
#define RFOR(i, x, n) for (ll i =x; i>=n; --i)
using namespace std;
mt19937 rng(chrono::system_clock::now().time_since_epoch().count());
//using namespace __gnu_pbds;
//#define ordered_set tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update>
//#define ordered_multiset tree<int, null_type, less_equal<int>, rb_tree_tag, tree_order_statistics_node_update>
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ld, ll> pd;
typedef pair<string, ll> psl;
typedef pair<ll, ll> pi;
typedef pair<pi, ll> pii;
typedef pair<pi, pi> piii;
ll const mod = 1000002022;
ll n, m;
ll a[200005], child[200005], path[200005], sum[200005];
vector<ll> adj[200005];
// RURQ Segment Tree
struct node{
int s, e, m;
ll val, tot;
ll lazy;
node *l, *r;
node (int S, int E)
{
s = S, e = E, m = (s+e)/2;
lazy = 0;
if(s != e)
{
l = new node(s, m);
r = new node(m+1, e);
val = (l->val + r->val)%mod;
tot = (l->tot + r->tot)%mod;
}
else
{
val = ((a[s])?path[n+s]:0);
tot = path[n+s];
}
}
void propogate()
{
if (lazy==0) return;
val = (tot - val + mod)%mod;
if (s != e){
l->lazy^=lazy;
r->lazy^=lazy;
}
lazy=0;
}
void update(int S, int E)
{
propogate();
if(s==S && e==E){ lazy^=1;}
else{
if(E <= m) l->update(S, E);
else if (m < S) r->update(S, E);
else l->update(S, m),r->update(m+1, E);
l->propogate(),r->propogate();
val = (l->val + r->val)%mod;
tot = (l->tot + r->tot)%mod;
}
}
ll query()
{
propogate();
return val;
}
} *root;
void dfs(ll x)
{
if (x >= n){ sum[x] = 1; return;}
sum[x] = child[x];
for (ll u: adj[x])
{
dfs(u);
sum[x] = (sum[u] * sum[x])%mod;
}
}
void dfs2(ll x)
{
if (x >= n) return;
vector<ll> dp(child[x], 1);
ll ps = 1;
for (ll i=0; i<child[x]; ++i)
{
dp[i] = (dp[i] * ps)%mod;
ps = (ps * sum[adj[x][i]])%mod;
}
ll ss = 1;
for (ll i=child[x]-1; i>=0; --i)
{
dp[i] = (dp[i] * ss)%mod;
ss = (ss * sum[adj[x][i]])%mod;
}
for (ll i=0; i<child[x]; ++i)
{
path[adj[x][i]] = dp[i];
dfs2(adj[x][i]);
}
}
void init(int N, int M, std::vector<int> P, std::vector<int> A)
{
n = N, m = M;
for (ll i=0; i<m; ++i) a[i] = A[i];
for (ll i=0; i<n+m; ++i) child[i] =0;
for (ll i=1; i<n+m; ++i) {adj[P[i]].pb(i); child[P[i]]++;}
dfs(0);
path[0] = 1;
dfs2(0);
root = new node(0, m-1);
}
int count_ways(int L, int R)
{
root->update(L-n, R-n);
return root->query();
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 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 |
2 ms |
10892 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
10840 KB |
Output is correct |
| 2 |
Incorrect |
2 ms |
10840 KB |
1st lines differ - on the 1st token, expected: '52130940', found: '128' |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 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 |
2 ms |
10892 KB |
Output is correct |
| 9 |
Correct |
2 ms |
10840 KB |
Output is correct |
| 10 |
Incorrect |
2 ms |
10840 KB |
1st lines differ - on the 1st token, expected: '52130940', found: '128' |
| 11 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
480 ms |
16728 KB |
1st lines differ - on the 1st token, expected: '431985922', found: '16402' |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
480 ms |
16728 KB |
1st lines differ - on the 1st token, expected: '431985922', found: '16402' |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
10840 KB |
Output is correct |
| 2 |
Incorrect |
2 ms |
10840 KB |
1st lines differ - on the 1st token, expected: '52130940', found: '128' |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 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 |
2 ms |
10892 KB |
Output is correct |
| 9 |
Correct |
2 ms |
10840 KB |
Output is correct |
| 10 |
Incorrect |
2 ms |
10840 KB |
1st lines differ - on the 1st token, expected: '52130940', found: '128' |
| 11 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 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 |
2 ms |
10892 KB |
Output is correct |
| 9 |
Correct |
2 ms |
10840 KB |
Output is correct |
| 10 |
Incorrect |
2 ms |
10840 KB |
1st lines differ - on the 1st token, expected: '52130940', found: '128' |
| 11 |
Halted |
0 ms |
0 KB |
- |
