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Submission #786967

# Submission time Handle Problem Language Result Execution time Memory
786967 2023-07-18T15:50:00 Z thimote75 Digital Circuit (IOI22_circuit) C++17
0 / 100
 3000 ms 1872 KB 
#include "circuit.h"

#include <bits/stdc++.h>
#define num long long

using namespace std;
const int MOD = 1000002022;

using idata = vector<signed>;
using ndata = vector<num>;

ndata C;
ndata Gamma;

idata status;
idata target;

int N, M;

void init(int _N, int _M, idata P, idata A) {
  N = _N; M = _M;
  C    .resize(N);
  Gamma.resize(N + 1, 1);

  status = A;
  target.resize(M);
  for (int i = 0; i < M; i ++)
    target[i] = P[i + N];

  for (int i = 1; i < N + M; i ++) C[P[i]] ++;

  for (int i = N - 1; i >= 0; i --) Gamma[i] = (C[i] * Gamma[i + 1]) % MOD;
}

int count_ways(int L, int R) {
  L -= N; R -= N;
  for (int i = L; i <= R; i ++)
    status [i] = 1 - status[i];
  
  idata localC(N);

  int size_last = 0;
  num res       = 0;

  for (int i = 0; i < M; i ++) {
    if (status[i] == 0) continue ;

    localC[target[i]] ++ ;
  }

  bool canAdd = false;
  for (int i = N - 1; i >= 0; i --) {
    if (localC[i] == C[i]) {
      if (i != 0) localC[i - 1] ++;

      continue ;
    }

    if (canAdd) { res += localC[i] * Gamma[i + 1]; res %= MOD; }
    canAdd = true;
  }

  if (!canAdd) return Gamma[0];

  return res;
}

Compilation message

circuit.cpp: In function 'int count_ways(int, int)':
circuit.cpp:42:7: warning: unused variable 'size_last' [-Wunused-variable]
   42 |   int size_last = 0;
      |       ^~~~~~~~~

Subtask #1
0 / 2.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB 1st lines differ - on the 1st token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB 1st lines differ - on the 1st token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB 1st lines differ - on the 1st token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #4
0 / 4.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3081 ms 1872 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 3081 ms 1872 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 208 KB 1st lines differ - on the 1st token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB 1st lines differ - on the 1st token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB 1st lines differ - on the 1st token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -