Submission #628916

#	Time	Username	Problem	Language	Result	Execution time	Memory
628916		flashmt	Rarest Insects (IOI22_insects)	C++17	Compilation error	0 ms	0 KiB

insects

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

vector<int> findFirstOccurrences(int n, vector<int> &id)
{
  vector<int> res;
  for (int i = 0; i < n; i++)
    if (id[i] < 0)
    {
      move_inside(i);
      if (press_button() > 1) move_outside(i);
      else
      {
        id[i] = size(res);
        res.push_back(i);
      }
    }
  for (int i : res)
    move_outside(i);
  return res;
}

int min_cardinality(int n)
{
  vector<int> id(n, -1);
  auto occurrences = findFirstOccurrences(n, id);
  int typeCnt = size(occurrences);

  int maxC = n / typeCnt;
  if (maxC <= typeCnt)
  {
    int ans = 1;
    while (1)
    {
      auto occ = findFirstOccurrences(n, id);
      if (size(occ) != typeCnt)
        return ans;
      ans++;
    }
  }

  vector<int> cnt(n);
  for (int i = 0; i < n; i++)
    if (id[i] < 0)
    {
      move_inside(i);
      for (int j : occurrences)
      {
        move_inside(j);
        if (press_button() == 2)
        {
          cnt[j]++;
          move_outside(j);
          break;
        }
        move_outside(j);
      }
      move_outside(i);
    }

  int ans = *max_element(begin(cnt), end(cnt)) + 1;
  return ans;
}

int main() {
  assert(1 == scanf("%d", &N));
  color.resize(N);
  in_box.assign(N, false);

  std::map<int, int> type_to_color;
  for (int i = 0; i < N; ++i) {
    int Ti;
    assert(1 == scanf("%d", &Ti));
    if (type_to_color.find(Ti) == type_to_color.end()) {
      int new_color = type_to_color.size();
      type_to_color[Ti] = new_color;
      max_occurrences.insert(0);
    }
    color[i] = type_to_color[Ti];
  }

  color_occurrences.assign(type_to_color.size(), 0);

  int answer = min_cardinality(N);
  int Q = *std::max_element(op_counter.begin(), op_counter.end());
  printf("%d\n", answer);
  printf("%d\n", Q);
  return 0;
}

Compilation message (stderr)

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:37:21: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   37 |       if (size(occ) != typeCnt)
      |           ~~~~~~~~~~^~~~~~~~~~
In file included from /usr/include/c++/10/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from insects.cpp:1:
insects.cpp: In function 'int main()':
insects.cpp:67:28: error: 'N' was not declared in this scope
   67 |   assert(1 == scanf("%d", &N));
      |                            ^
insects.cpp:68:3: error: 'color' was not declared in this scope
   68 |   color.resize(N);
      |   ^~~~~
insects.cpp:69:3: error: 'in_box' was not declared in this scope
   69 |   in_box.assign(N, false);
      |   ^~~~~~
insects.cpp:78:7: error: 'max_occurrences' was not declared in this scope
   78 |       max_occurrences.insert(0);
      |       ^~~~~~~~~~~~~~~
insects.cpp:83:3: error: 'color_occurrences' was not declared in this scope
   83 |   color_occurrences.assign(type_to_color.size(), 0);
      |   ^~~~~~~~~~~~~~~~~
insects.cpp:86:29: error: 'op_counter' was not declared in this scope
   86 |   int Q = *std::max_element(op_counter.begin(), op_counter.end());
      |                             ^~~~~~~~~~