Submission #745082

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
745082	2023-05-19 11:33:01	math_rabbit_1028	Rarest Insects (IOI22_insects)	C++17	100 / 100	69 ms	420 KiB

insects

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#include "insects.h"
 
#include <bits/stdc++.h>
using namespace std;
 
int types = 0, ch[2020], use[2020], cnt = 0;
 
int min_cardinality(int N) {
 
  // calculate types: N times
  for (int i = 0; i < N; i++) {
    move_inside(i);
    if (press_button() >= 2) move_outside(i);
    else {
      ch[i] = 1;
      types++;
      cnt++;
      use[i] = 1;
    }
  }
 
  int st = 1, ed = N / types;
  while (st < ed) {
    int x = (st + ed + 1 + min(2, (ed - st)/10)) / 2;
    for (int i = 0; i < N; i++) {
      if (ch[i] == 1) continue;
      move_inside(i);
      if (press_button() > x) move_outside(i);
      else {
        use[i] = 1;
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 75 / 75