This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
#include "circuit.h"
using namespace std;
#define ll long long
#define pb push_back
#define ff first
#define ss second
#define all(s) s.begin(),s.end()
#define rall(s) s.rbegin(),s.rend()
const int mod=1000002022;
const int maxn=2e5;
vector<int>adj[maxn];
vector<int>a;
int n,m;
void init(int N,int M,vector<int>p,vector<int>A){
    n=N;
    m=M;
    a=A;
    for(int i=1;i<n;i++){
        adj[p[i]].pb(i);
    }
}
int count_ways(int l,int r){
    if(n==1){
        int cnt=0;
        for(int i=1;i<n+m;i++){
            if(l<=i&&i<=r){
                a[i]=1-a[i];
            }
            cnt+=a[i];
        }
        return cnt;
    }
    return 0;
}
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