제출 #1076715

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1076715		Boas	디지털 회로 (IOI22_circuit)	C++17	2 / 100	2392 ms	2904 KiB

circuit

#include "circuit.h"

#include <bits/stdc++.h>
using namespace std;

#define int long long

#define pb push_back
#define loop(x, i) for (int i = 0; i < x; i++)
#define rev(x, i) for (int i = (int)x - 1; i >= 0; i--)
#define ALL(x) begin(x), end(x)
#define sz(x) (int)x.size()

typedef signed i32;
typedef array<int, 2> ii;
typedef vector<ii> vii;
typedef vector<bool> vb;
typedef vector<int> vi;
typedef vector<i32> vi32;
typedef vector<vi> vvi;

constexpr int MOD = 1'000'002'022;

vvi children;
int n, m;
vb a;

void init(i32 N, i32 M, vi32 P, vi32 A)
{
  n = N;
  m = M;
  children = vvi(N);
  a = vb(M);
  loop(sz(P), i)
  {
    if (i == 0)
      continue;
    children[P[i]].pb(i);
  }
  loop(sz(A), i)
  {
    a[i] = A[i];
  }
}

i32 count_ways(i32 L, i32 R)
{
  int res = 0;
  for (int i = L; i <= R; i++)
  {
    a[i - n].flip();
  }
  for (bool b : a)
    if (b)
      res++;
  return res;
}

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