Submission #1215015

#	Time	Username	Problem	Language	Result	Execution time	Memory
1215015		dosts	Rarest Insects (IOI22_insects)	C++20	0 / 100	2 ms	4324 KiB

insects

#include "insects.h"
#include <bits/stdc++.h>
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2")
//#define int long long
#define pii pair<int,int>
#define vi vector<int>
#define ff first
#define ss second
#define sp << " " <<
#define all(x) x.begin(),x.end()
#define big(x) ((int)(x.size()))
using namespace std;
const int MOD = 1e9+7, LIM = 1e6+1, inf = 2e9;

vi inside(LIM,0);
void add(int p) {
  if (inside[p]) return;
  inside[p] = 1;
  move_inside(p);
}
void remove(int p) {
  if (!inside[p]) return;
  inside[p] = 0;
  move_outside(p);
}

int min_cardinality(int N) {
  vi machine;
  vi cand;
  for (int i = 0;i<N;i++) cand.push_back(i);
  while (1) {
/*     cerr << "C\n";
    for (auto it : cand) cerr << it << ' ';
    cerr << '\n'; */
    for (auto it : cand) add(it);
    int fnd = -1;
    int x = press_button();
    for (auto it : cand) {
      remove(it);
      int y = press_button();
      if (y == x) {
        fnd = it;
        break;
      }
      else add(it);
    }
    if (fnd == -1) return x;
    for (auto it : cand) remove(it);
    add(fnd);
    vi nxt{};
    for (auto it : cand) {
      add(it);
      int y = press_button();
      if (y == 1) {
        nxt.push_back(it);
      }else remove(it);
    }
    if (big(cand) == big(nxt)) return x;
    cand = nxt;
    if (cand.empty()) return x;
  }
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 15
• Subtask 3: 0 / 75