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답안 #1057965

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1057965 2024-08-14T07:41:24 Z SalihSahin 드문 곤충 (IOI22_insects) C++17
0 / 100
 180 ms 756 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> cik;

   int colcnt = 0;
   for(int i = 0; i < N; i++){
      move_inside(i);
      colcnt++;
      int val = press_button();
      if(val == 2){
        move_outside(i);
        colcnt--;
      }
      else cik.pb(i);
   }
   for(auto itr: cik){
    move_outside(itr);
   }
   cik.clear();

   if(N/colcnt < 256){
       vector<int> opt, nopt;
       for(int i = 0; i < N; i++) opt.pb(i);

       int l = 1, r = N/colcnt;
       while(l <= r){
           int m = (l + r)/2;

           int tot = 0;
           for(auto i: opt){
              move_inside(i);
              tot++;
              int val = press_button();
              if(val > m){
                move_outside(i);
                tot--;
              }
              else{
                cik.pb(i);
                nopt.pb(i);
              }
           }

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

           if(tot == colcnt * m) l = m + 1;
           else{
              r = m - 1;
              opt = nopt;
              nopt.clear();
           }
       }

       return r;
   }
   else{
      vector<int> wh, nxtwh;
      for(int i = 0; i < N; i++){
          wh.pb(i);
      }
      shuffle(wh.begin(), wh.end(), rng);
 
      int sz = 0, ans = N;
 
      while(wh.size() > 0){
        shuffle(wh.begin(), wh.end(), rng);
         sz = 0;
         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
0 / 10.0

# 결과 실행 시간 메모리 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 1 ms 344 KB Output is correct
6 Correct 8 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 4 ms 440 KB Output is correct
9 Correct 6 ms 344 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Incorrect 9 ms 448 KB Wrong answer.
15 Halted 0 ms 0 KB -

Subtask #2
0 / 15.0

# 결과 실행 시간 메모리 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 1 ms 344 KB Output is correct
6 Correct 8 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 4 ms 440 KB Output is correct
9 Correct 6 ms 344 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Incorrect 9 ms 448 KB Wrong answer.
15 Halted 0 ms 0 KB -

Subtask #3
0 / 75.0

# 결과 실행 시간 메모리 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 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Partially correct 0 ms 344 KB Output is partially correct
7 Correct 13 ms 432 KB Output is correct
8 Correct 13 ms 448 KB Output is correct
9 Partially correct 78 ms 756 KB Output is partially correct
10 Partially correct 58 ms 480 KB Output is partially correct
11 Correct 19 ms 600 KB Output is correct
12 Correct 21 ms 684 KB Output is correct
13 Partially correct 25 ms 592 KB Output is partially correct
14 Correct 25 ms 436 KB Output is correct
15 Partially correct 33 ms 696 KB Output is partially correct
16 Incorrect 180 ms 748 KB Wrong answer.
17 Halted 0 ms 0 KB -