Submission #978596

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
978596	2024-05-09 11:14:07	Temmie	Rarest Insects (IOI22_insects)	C++17	100 / 100	1000 ms	16452 KiB

insects

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#include "insects.h"
#include <bits/stdc++.h>
std::set <int> IN;
std::set <int> last;
void inside(int x) {
  IN.insert(x);
}
void outside(int x) {
  IN.erase(x);
}
int ask(int n) {
  for (int i = 0; i < n; i++) {
    if (IN.count(i) && !last.count(i)) {
      move_inside(i);
    } else if (!IN.count(i) && last.count(i)) {
      move_outside(i);
    }
  }
  static std::map <std::vector <int>, int> mem;
  last = IN;
  std::vector <int> tmp;
  for (int x : IN) tmp.push_back(x);
  auto it = mem.find(tmp);
  if (it != mem.end()) return it->second;
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 75 / 75