oj.uz

Submission #1057901

# Submission time Handle Problem Language Result Execution time Memory
1057901 2024-08-14T07:13:29 Z SalihSahin Rarest Insects (IOI22_insects) C++17
25 / 100
 220 ms 604 KB 
#include<bits/stdc++.h>
#include "insects.h"
#define pb push_back
using namespace std;

/*
static inline constexpr int kMaxQueries = 40000;

static int N;
// Insect types are compressed to colors in the range [0, N).
static std::vector<int> color;
static std::vector<bool> in_box;

static std::vector<int> color_occurrences;
static std::multiset<int> max_occurrences;

static std::vector<int> op_counter(3, 0);

static inline void protocol_violation(std::string message) {
  printf("Protocol Violation: %s\n", message.c_str());
  exit(0);
}

void move_inside(int i) {
  if (i < 0 || i >= N) {
    protocol_violation("invalid parameter");
  }
  ++op_counter[0];
  if (op_counter[0] > kMaxQueries) {
    protocol_violation("too many calls");
  }
  if (!in_box[i]) {
    in_box[i] = true;
    max_occurrences.erase(max_occurrences.find(color_occurrences[color[i]]));
    ++color_occurrences[color[i]];
    max_occurrences.insert(color_occurrences[color[i]]);
  }
}

void move_outside(int i) {
  if (i < 0 || i >= N) {
    protocol_violation("invalid parameter");
  }
  ++op_counter[1];
  if (op_counter[1] > kMaxQueries) {
    protocol_violation("too many calls");
  }
  if (in_box[i]) {
    in_box[i] = false;
    max_occurrences.erase(max_occurrences.find(color_occurrences[color[i]]));
    --color_occurrences[color[i]];
    max_occurrences.insert(color_occurrences[color[i]]);
  }
}

int press_button() {
  ++op_counter[2];
  if (op_counter[2] > kMaxQueries) {
    protocol_violation("too many calls");
  }
  return *(max_occurrences.rbegin());
}
*/
int min_cardinality(int N) {
   mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
   vector<int> wh, nxtwh;
   vector<int> cik;

   int sz = 0;
   for(int i = 0; i < N; i++){
      move_inside(i);
      sz++;
      int val = press_button();
      if(val == 2){
        move_outside(i);
        wh.pb(i);
        sz--;
      }
      else cik.pb(i);
   }

   for(auto itr: cik){
    move_outside(itr);
   }
   cik.clear();

   if(sz > 50){
        int ans = 1;
        while(1){
           shuffle(wh.begin(), wh.end(), rng);
           int isz = 0;
           for(auto itr: wh){
              if(isz < sz){
                  move_inside(itr);
                  isz++;
                  int val = press_button();
                  if(val == 2){
                    move_outside(itr);
                    nxtwh.pb(itr);
                    isz--;
                  }
                  else cik.pb(itr);
              }
              else{
                  nxtwh.pb(itr);
              }
           }

           for(auto itr: cik) move_outside(itr);
           cik.clear();

           if(isz != sz){
              break;
           }
           else{
              ans++;
              wh = nxtwh;
              nxtwh.clear();
           }
       }

       return ans;
   }
   else{
      wh.clear();
      nxtwh.clear();
      for(int i = 0; i < N; i++){
          wh.pb(i);
      }

      int sz = 0, ans = 2000;

      while(wh.size() > 0){
         sz = 0;
         shuffle(wh.begin(), wh.end(), rng);
         for(auto itr: wh){
              move_inside(itr);
              sz++;
              int val = press_button();
              if(val != sz){
                move_outside(itr);
                nxtwh.pb(itr);
                sz--;
              }
              else cik.pb(itr);
          }
          ans = min(ans, sz);
          wh = nxtwh;
          for(auto itr: cik) move_outside(itr);
          cik.clear();
          nxtwh.clear();
      }

      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;
}
*/

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 7 ms 344 KB Output is correct
9 Correct 7 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 436 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 8 ms 344 KB Output is correct
14 Correct 3 ms 344 KB Output is correct
15 Correct 4 ms 344 KB Output is correct
16 Correct 4 ms 344 KB Output is correct
17 Correct 4 ms 344 KB Output is correct
18 Correct 6 ms 436 KB Output is correct
19 Correct 6 ms 344 KB Output is correct
20 Correct 14 ms 344 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 7 ms 344 KB Output is correct
9 Correct 7 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 436 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 8 ms 344 KB Output is correct
14 Correct 3 ms 344 KB Output is correct
15 Correct 4 ms 344 KB Output is correct
16 Correct 4 ms 344 KB Output is correct
17 Correct 4 ms 344 KB Output is correct
18 Correct 6 ms 436 KB Output is correct
19 Correct 6 ms 344 KB Output is correct
20 Correct 14 ms 344 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 5 ms 344 KB Output is correct
24 Correct 2 ms 440 KB Output is correct
25 Correct 70 ms 344 KB Output is correct
26 Correct 86 ms 344 KB Output is correct
27 Correct 6 ms 448 KB Output is correct
28 Correct 8 ms 452 KB Output is correct
29 Correct 12 ms 604 KB Output is correct
30 Correct 83 ms 444 KB Output is correct
31 Correct 13 ms 344 KB Output is correct
32 Correct 24 ms 448 KB Output is correct
33 Correct 21 ms 344 KB Output is correct
34 Correct 25 ms 600 KB Output is correct
35 Correct 45 ms 444 KB Output is correct
36 Correct 47 ms 344 KB Output is correct
37 Correct 133 ms 436 KB Output is correct
38 Correct 8 ms 344 KB Output is correct
39 Correct 5 ms 600 KB Output is correct
40 Correct 8 ms 444 KB Output is correct
41 Correct 5 ms 440 KB Output is correct

Subtask #3
0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 16 ms 444 KB Output is correct
8 Correct 12 ms 444 KB Output is correct
9 Incorrect 220 ms 444 KB Too many queries.
10 Halted 0 ms 0 KB -