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Submission #1076684

# Submission time Handle Problem Language Result Execution time Memory
1076684 2024-08-26T15:34:24 Z Boas Digital Circuit (IOI22_circuit) C++17
0 / 100
 3000 ms 2904 KB 
#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];
  }
}

ii calc(int i)
{
  if (i >= n)
  {
    if (a[i - n])
      return {0, 1};
    return {1, 0};
  }
  vii vs;
  for (int j : children[i])
  {
    vs.pb(calc(j));
  }
  assert(vs.size() == 2);
  int mid = vs[0][0] * vs[1][1] + vs[0][1] * vs[1][0];
  int r0 = vs[0][0] * vs[1][0] + mid,
      r1 = vs[0][1] * vs[1][1] + mid;
  return {r0 % MOD, r1 % MOD};
}

i32 count_ways(i32 L, i32 R)
{
  for (int i = L; i <= R; i++)
  {
    a[i - n].flip();
  }
  return calc(0)[1];
}

Subtask #1
0 / 2.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB 2nd lines differ - on the 1st token, expected: '2', found: '1'
2 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB 2nd lines differ - on the 1st token, expected: '2', found: '1'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB 2nd lines differ - on the 1st token, expected: '2', found: '1'
2 Halted 0 ms 0 KB -

Subtask #4
0 / 4.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3012 ms 2904 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3012 ms 2904 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB 2nd lines differ - on the 1st token, expected: '2', found: '1'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB 2nd lines differ - on the 1st token, expected: '2', found: '1'
2 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB 2nd lines differ - on the 1st token, expected: '2', found: '1'
2 Halted 0 ms 0 KB -