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Submission #1034831

# Submission time Handle Problem Language Result Execution time Memory
1034831 2024-07-25T19:27:04 Z Mr_Husanboy Rarest Insects (IOI22_insects) C++17
99.89 / 100
 45 ms 704 KB 
#include "insects.h"
#include <bits/stdc++.h>
 
using namespace std;
 
#define ff first
#define ss second
#define all(a) (a).begin(), (a).end()
#define ll long long
const int mod = 1000002022;
 
vector<int> state, p;
int n, m; 
vector<vector<int>> g;
template<typename T>
int len(T &a){return a.size();}
 
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
 
void shuffle(vector<int> &a, int n){
  if(n == 1) return;
  random_shuffle(a.begin(), a.begin() + n);
  for(int i = 0; i < n; i ++){
    int aa = rng() % n, bb = rng() % n;
    while(bb == aa) bb = rng() % n;
    swap(a[aa], a[bb]);
  }
}
 
 
int min_cardinality(int n) {
 
  vector<int> v;
  vector<int> done(n);
  vector<int> ind(n);
  iota(all(ind), 0);
  shuffle(ind, n);
  for(int i = 0; i < n; i ++){
    move_inside(ind[i]);
    if(press_button() == 2){
      move_outside(ind[i]);
    }else v.push_back(ind[i]), done[ind[i]] = 1;
  }
  if(len(v) == 1){
    return n;
  }
  int dis = len(v);
  int l = 1, r = n / dis + 1;
  ll cnt = dis;
 
  auto check = [&](int m)->bool{
    vector<int> rem;
    vector<int> rem2;
    for(int i = 0; i < n; i ++){
      if(done[ind[i]]) continue;
      move_inside(ind[i]);
      if(press_button() <= m){
        rem.push_back(ind[i]);
      }else{
        move_outside(ind[i]);
        rem2.push_back(ind[i]);
      }
    }

    if(cnt + len(rem) == dis * m){
      for(auto u : rem) done[u] = 1;
      cnt += len(rem);
      return true;
    }else{
      for(auto u : rem) move_outside(u);
      for(auto u : rem2) done[u] = 1;
      return false;
    }
  };

  while(r - l > 1){
    int m = (l + r) / 2;
    if(check(m)){
      l = m;
    }else r = m;
  }
  return l;
}

Subtask #1
10.0 / 10.0

# 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 1 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 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 2 ms 436 KB Output is correct
9 Correct 2 ms 388 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 2 ms 440 KB Output is correct
14 Correct 3 ms 344 KB Output is correct
15 Correct 3 ms 436 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 3 ms 600 KB Output is correct
20 Correct 3 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 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 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 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 2 ms 436 KB Output is correct
9 Correct 2 ms 388 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 2 ms 440 KB Output is correct
14 Correct 3 ms 344 KB Output is correct
15 Correct 3 ms 436 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 3 ms 600 KB Output is correct
20 Correct 3 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 3 ms 344 KB Output is correct
24 Correct 6 ms 452 KB Output is correct
25 Correct 17 ms 440 KB Output is correct
26 Correct 15 ms 592 KB Output is correct
27 Correct 9 ms 448 KB Output is correct
28 Correct 5 ms 344 KB Output is correct
29 Correct 15 ms 600 KB Output is correct
30 Correct 8 ms 600 KB Output is correct
31 Correct 16 ms 344 KB Output is correct
32 Correct 18 ms 344 KB Output is correct
33 Correct 12 ms 696 KB Output is correct
34 Correct 10 ms 344 KB Output is correct
35 Correct 18 ms 344 KB Output is correct
36 Correct 13 ms 344 KB Output is correct
37 Correct 9 ms 444 KB Output is correct
38 Correct 11 ms 344 KB Output is correct
39 Correct 7 ms 344 KB Output is correct
40 Correct 7 ms 452 KB Output is correct
41 Correct 5 ms 344 KB Output is correct

Subtask #3
74.89 / 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 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 412 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 9 ms 344 KB Output is correct
8 Correct 7 ms 608 KB Output is correct
9 Correct 31 ms 700 KB Output is correct
10 Correct 34 ms 592 KB Output is correct
11 Correct 28 ms 344 KB Output is correct
12 Correct 17 ms 608 KB Output is correct
13 Correct 21 ms 444 KB Output is correct
14 Correct 29 ms 704 KB Output is correct
15 Correct 23 ms 344 KB Output is correct
16 Correct 36 ms 452 KB Output is correct
17 Correct 26 ms 600 KB Output is correct
18 Correct 29 ms 344 KB Output is correct
19 Partially correct 19 ms 344 KB Output is partially correct
20 Correct 37 ms 440 KB Output is correct
21 Correct 29 ms 456 KB Output is correct
22 Correct 27 ms 456 KB Output is correct
23 Correct 21 ms 456 KB Output is correct
24 Correct 19 ms 460 KB Output is correct
25 Correct 10 ms 344 KB Output is correct
26 Correct 10 ms 600 KB Output is correct
27 Correct 39 ms 344 KB Output is correct
28 Correct 25 ms 592 KB Output is correct
29 Partially correct 37 ms 600 KB Output is partially correct
30 Partially correct 34 ms 460 KB Output is partially correct
31 Correct 32 ms 440 KB Output is correct
32 Correct 45 ms 600 KB Output is correct
33 Correct 20 ms 592 KB Output is correct
34 Correct 32 ms 700 KB Output is correct
35 Partially correct 25 ms 344 KB Output is partially correct
36 Partially correct 30 ms 344 KB Output is partially correct
37 Correct 37 ms 444 KB Output is correct
38 Correct 24 ms 592 KB Output is correct
39 Correct 32 ms 592 KB Output is correct
40 Correct 28 ms 456 KB Output is correct
41 Partially correct 41 ms 684 KB Output is partially correct
42 Partially correct 22 ms 344 KB Output is partially correct
43 Correct 8 ms 444 KB Output is correct
44 Correct 23 ms 600 KB Output is correct
45 Correct 24 ms 444 KB Output is correct
46 Correct 14 ms 604 KB Output is correct
47 Correct 12 ms 344 KB Output is correct
48 Correct 13 ms 464 KB Output is correct