Submission #627373

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
627373	2022-08-12T13:59:06 Z	Elegia	Digital Circuit (IOI22_circuit)	C++17	Compilation error	0 ms	0 KB

circuit

#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[P[i]] * (ull)prod[i] % P;
  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];

  for (int i = N - 1; i >= 0; --i) {
    int f0 = 1, f1 = 0;
    for (int j : ch[i]) {
      f1 = (f0 * (ull)A[j] + f1 * (ull)prod[j]) % MOD;
      f0 = f0 * (ull)prod[j] % MOD;
    }
    A[i] = f1;
  }

  return A[0];
}

Compilation message

circuit.cpp: In function 'void init(int, int, std::vector<int>, std::vector<int>)':
circuit.cpp:21:70: error: no match for 'operator%' (operand types are 'ull' {aka 'long long unsigned int'} and 'std::vector<int>')
   21 |   for (int i = N - 1; i; --i) prod[P[i]] = prod[P[i]] * (ull)prod[i] % P;
      |                                                                      ^ ~
      |                                                                        |
      |                                                                        std::vector<int>