Submission #627371

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
627371	2022-08-12 13:57:27	Elegia	Digital Circuit (IOI22_circuit)	C++17	2 / 100	3022 ms	3664 KiB

circuit

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#include "circuit.h"
#include <algorithm>
#include <iostream>
#include <vector>
using ull = unsigned long long;
const int MOD = 1000002022;
int N, M;
std::vector<int> P, A, prod;
std::vector<std::vector<int>> ch;
void init(int _N, int _M, std::vector<int> _P, std::vector<int> _A) {
  N = _N; M = _M;
  P = _P;
  prod.resize(N + M);
  std::fill(prod.begin() + N, prod.end(), 1);
  for (int i = 1; i != N + M; ++i) ++prod[P[i]];
  for (int i = N - 1; i; --i) prod[P[i]] *= prod[i];
  A.resize(N + M);
  std::copy(_A.begin(), _A.end(), A.begin() + N);
  ch.resize(N);
  for (int i = 1; i != N + M; ++i) ch[P[i]].push_back(i);
}
int count_ways(int L, int R) {
  for (int i = L; i <= R; ++i) A[i] = !A[i];
 
 
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