oj.uz

Submission #1088374

# Submission time Handle Problem Language Result Execution time Memory
1088374 2024-09-14T10:10:58 Z abczz Rarest Insects (IOI22_insects) C++17
99.89 / 100
 43 ms 960 KB 
#include "insects.h"
#include <iostream>
#include <vector>
#define ll long long

using namespace std;

int min_cardinality(int N) {
  vector <ll> V, X, A, B;
  ll s = 0, a, b, mid, f = 1;
  for (int i=0; i<N; ++i) {
    move_inside(i);
    auto res = press_button();
    if (res > 1) {
      move_outside(i);
      X.push_back(i);
    }
    else V.push_back(i);
  }
  for (auto u : V) move_outside(u);
  s = V.size();
  while (true) {
    A.clear();
    B.clear();
    if (X.size() < s) return f;
    a = (X.size() / s) / 2;
    a = max(a, 1LL);
    b = a+1;
    b = min(b, (ll)X.size()/s);
    if (abs(a*s-(ll)X.size()/2) > abs(b*s-(ll)X.size()/2)) mid = b;
    else mid = a;
    ll p = -1;
    for (auto u : X) {
      move_inside(u);
      auto res = press_button();
      if (res == mid && p == -1) p = u;
      if (res > mid) {
        B.push_back(u);
        move_outside(u);
      }
      else A.push_back(u);
    }
    for (auto u : A) move_outside(u);
    if (A.size() == mid * s) {
      swap(X, B);
      f += mid;
    }
    else {
      swap(X, A);
      for (int i=0; i<X.size(); ++i) {
        if (X[i] == p) {
          swap(X[i], X.back());
          X.pop_back();
          break;
        }
      }
    }
  }
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:25:18: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   25 |     if (X.size() < s) return f;
      |         ~~~~~~~~~^~~
insects.cpp:44:18: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   44 |     if (A.size() == mid * s) {
      |         ~~~~~~~~~^~~~~~~~~~
insects.cpp:50:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |       for (int i=0; i<X.size(); ++i) {
      |                     ~^~~~~~~~~

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 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 3 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 3 ms 344 KB Output is correct
9 Correct 4 ms 344 KB Output is correct
10 Correct 3 ms 440 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 4 ms 428 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 3 ms 432 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 3 ms 344 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 2 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 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 3 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 3 ms 344 KB Output is correct
9 Correct 4 ms 344 KB Output is correct
10 Correct 3 ms 440 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 4 ms 428 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 3 ms 432 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 3 ms 344 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 2 ms 344 KB Output is correct
23 Correct 9 ms 344 KB Output is correct
24 Correct 7 ms 344 KB Output is correct
25 Correct 10 ms 344 KB Output is correct
26 Correct 12 ms 344 KB Output is correct
27 Correct 8 ms 344 KB Output is correct
28 Correct 4 ms 344 KB Output is correct
29 Correct 12 ms 344 KB Output is correct
30 Correct 14 ms 344 KB Output is correct
31 Correct 15 ms 600 KB Output is correct
32 Correct 14 ms 452 KB Output is correct
33 Correct 17 ms 344 KB Output is correct
34 Correct 11 ms 344 KB Output is correct
35 Correct 13 ms 344 KB Output is correct
36 Correct 13 ms 600 KB Output is correct
37 Correct 21 ms 440 KB Output is correct
38 Correct 13 ms 344 KB Output is correct
39 Correct 12 ms 340 KB Output is correct
40 Correct 6 ms 440 KB Output is correct
41 Correct 3 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 1 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 0 ms 344 KB Output is correct
6 Correct 0 ms 408 KB Output is correct
7 Correct 32 ms 452 KB Output is correct
8 Correct 9 ms 468 KB Output is correct
9 Correct 37 ms 704 KB Output is correct
10 Correct 34 ms 612 KB Output is correct
11 Correct 29 ms 688 KB Output is correct
12 Correct 12 ms 344 KB Output is correct
13 Correct 23 ms 344 KB Output is correct
14 Correct 31 ms 592 KB Output is correct
15 Correct 24 ms 344 KB Output is correct
16 Correct 37 ms 344 KB Output is correct
17 Correct 28 ms 448 KB Output is correct
18 Correct 23 ms 344 KB Output is correct
19 Partially correct 35 ms 668 KB Output is partially correct
20 Correct 21 ms 344 KB Output is correct
21 Correct 41 ms 696 KB Output is correct
22 Correct 30 ms 948 KB Output is correct
23 Correct 21 ms 960 KB Output is correct
24 Correct 20 ms 456 KB Output is correct
25 Correct 18 ms 848 KB Output is correct
26 Correct 10 ms 344 KB Output is correct
27 Correct 31 ms 700 KB Output is correct
28 Correct 32 ms 848 KB Output is correct
29 Partially correct 35 ms 456 KB Output is partially correct
30 Partially correct 30 ms 344 KB Output is partially correct
31 Correct 43 ms 672 KB Output is correct
32 Correct 30 ms 700 KB Output is correct
33 Correct 19 ms 340 KB Output is correct
34 Correct 23 ms 696 KB Output is correct
35 Partially correct 27 ms 448 KB Output is partially correct
36 Partially correct 41 ms 592 KB Output is partially correct
37 Correct 39 ms 592 KB Output is correct
38 Correct 34 ms 344 KB Output is correct
39 Correct 25 ms 344 KB Output is correct
40 Correct 31 ms 608 KB Output is correct
41 Partially correct 35 ms 448 KB Output is partially correct
42 Partially correct 40 ms 600 KB Output is partially correct
43 Correct 4 ms 344 KB Output is correct
44 Correct 34 ms 700 KB Output is correct
45 Correct 27 ms 720 KB Output is correct
46 Correct 13 ms 600 KB Output is correct
47 Correct 17 ms 452 KB Output is correct
48 Correct 15 ms 708 KB Output is correct