제출 #835490

#제출 시각아이디문제언어결과실행 시간메모리
835490ma_moutahid디지털 회로 (IOI22_circuit)C++17
0 / 100
248 ms4148 KiB
#include <vector>
#include<bits/stdc++.h>
#include "circuit.h"
using namespace std;
#define vi vector<int>
#define vii vector<vi>
#define ll long long
#define vl vector<ll>
int n,m;
vii g;
vl ways;
int mod=1000002022;
void init(int N, int M, std::vector<int> P, std::vector<int> A) {

  n=N;
  m=M;
  g.resize(N+M);
  ways.resize(M+N);
  for(int i=1   ;i<N+M;i++){
    g[P[i]].push_back(i);
  }
  for(int i=N;i<N+M;i++){
    ways[i]=A[i-N];
  }
}

void dfs(int node){
  if(g[node].size()==0)return;
  ways[node]=2*ways[g[node][0]]*ways[g[node][1]]+ways[g[node][1]]+ways[g[node][0]];
  ways[node]%=mod;
}

int count_ways(int L, int R) {
  for(int i=L;i<=R;i++){
    ways[i]=!ways[i];
  }
  dfs(0);
  return ways[0];
}
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