#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
pair<int, int> pii;
const int MOD = 1000002022;
const int maxn = 2e5 + 100;
int n, k;
int p[maxn];
vector<int> g[maxn];
int a[maxn];
ll dp[2][maxn * 4];
int t[maxn * 4];
ll d[maxn];
void calc(int v){
fill(d, d + g[v].size() + 1, 0);
d[0] = 1; dp[1][v] = dp[0][v] = 0;
for(int to: g[v]){
for(int cnt = g[v].size(); cnt >= 0; cnt--){
d[cnt] = d[cnt] * dp[0][to] % MOD;
if(cnt) d[cnt] = (d[cnt] + d[cnt-1] * dp[1][to]) % MOD;
}
}
for(int cnt = 0; cnt <= g[v].size(); cnt++){
dp[1][v] = (dp[1][v] + d[cnt] * cnt) % MOD;
dp[0][v] = (dp[0][v] + d[cnt] * (g[v].size() - cnt)) % MOD;
}
}
void build(int v = 1, int tl = k + 1, int tr = n){
if(tl < tr){
int mid = (tl + tr) >> 1;
build(v<<1, tl, mid);
build(v<<1|1, mid+1, tr);
calc(v);
}
}
void pre(int v){
t[v] ^= 1;
swap(dp[0][v], dp[1][v]);
}
void push(int v, int tl, int tr){
if(tl == tr || !t[v]) return;
pre(v<<1); pre(v<<1|1);
}
void upd(int l, int r, int v = 1, int tl = 1 + k, int tr = n){
push(v, tl, tr);
if(tl > r || tr < l) return;
if(l <= tl && tr <= r) pre(v);
else{
int mid = (tl + tr) >> 1;
upd(l, r, v<<1, tl, mid);
upd(l, r, v<<1|1, mid+1, tr);
calc(v);
}
}
void updp(int i, int v = 1, int tl = k + 1, int tr = n){
if(tl == tr) swap(dp[0][v], dp[1][v]);
else{
int mid = (tl + tr) >> 1;
if(i <= mid) updp(i, v<<1, tl, mid);
else updp(i, v<<1|1, mid+1, tr);
calc(v);
}
}
void init(int N, int M, std::vector<int> P, std::vector<int> A){
n = N + M; k = N;
for(int i = 1; i <= n; i++){
p[i] = P[i-1]; p[i]++;
g[p[i]].push_back(i);
}
for(int i = k + 1; i <= n; i++){
a[i] = A[i - k - 1];
dp[a[i]][i] = 1;
dp[a[i]^1][i] = 0;
}
build();
}
int count_ways(int L, int R){
upd(L);
return dp[1][1];
}
Compilation message
circuit.cpp: In function 'void calc(int)':
circuit.cpp:26:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
26 | for(int cnt = 0; cnt <= g[v].size(); cnt++){
| ~~~~^~~~~~~~~~~~~~
circuit.cpp: In function 'int count_ways(int, int)':
circuit.cpp:88:7: error: too few arguments to function 'void upd(int, int, int, int, int)'
88 | upd(L);
| ^
circuit.cpp:51:6: note: declared here
51 | void upd(int l, int r, int v = 1, int tl = 1 + k, int tr = n){
| ^~~
