oj.uz

Submission #878581

# Submission time Handle Problem Language Result Execution time Memory
878581 2023-11-24T20:12:53 Z Clan328 Rarest Insects (IOI22_insects) C++17
47.48 / 100
 122 ms 1428 KB 
#include "insects.h"
#include <bits/stdc++.h>

using namespace std;

#define pb push_back
#define mp make_pair
#define nL '\n'
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()

typedef long long ll;
typedef long double ld;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int, int> pii;
typedef vector<pii> vpii;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef pair<ll, ll> pll;
typedef vector<pll> vpll;

const ll MOD = 1e9 + 7;

void settings()__attribute__((constructor));

int ipow(int a, int n) {
   if (n == 0) return 1;
   int x = ipow(a, n/2);
   if (n % 2 == 0) return x*x;
   return x*x*a;
}

template <typename T>
ostream& operator<<(ostream& stream, const vector<T>& v) {
  for (auto elem : v) 
    stream << elem << " ";
  return stream;
}

template <typename T>
istream& operator>>(istream& stream, vector<T>& v){
   for(auto &elem : v)
    stream >> elem;
   return stream;
}

vi first;

bool check(int N, int rarity) {
  vi inside, outside;

  for (int i = 0; i < N; i++) {
    move_inside(i);
    if (i >= rarity && press_button() > rarity) {
      move_outside(i);
      outside.pb(i);
    } else {
      inside.pb(i);
    }
  }

  for (int i = 0; i < inside.size(); i++) move_outside(inside[i]);

  if (inside.size() % rarity != 0) return true;
  if (inside.size()/rarity > outside.size()) return true;

  // if (rarity == 1) {
  //   cout << outside << nL;
  // }

  vi outside2;
  for (int i = 0; i < outside.size(); i++) {
    move_inside(outside[i]);
    if (press_button() == 1) {
      outside2.pb(outside[i]);
    } else {
      move_outside(outside[i]);
    }
  }

  // if (rarity == 6) {
  //   cout << outside2 << nL;
  // }

  bool res = false;
  int curr = press_button();
  for (int i = 0; i < first.size() && !res; i++) {
    move_inside(first[i]);
    if (press_button() == curr) {
      res = true;
    }
    move_outside(first[i]);
  }

  for (int i = 0; i < outside2.size(); i++) move_outside(outside2[i]);

  return res;
}

int min_cardinality(int N) {
  first = vi();
  for (int i = 0; i < N; i++) {
    move_inside(i);
    if (press_button() == 1) {
      first.pb(i);
    } else {
      move_outside(i);
    }
  }
  for (int i = 0; i < first.size(); i++) move_outside(first[i]);

  if (first.size() == 1) return N;
  if (first.size() > N/2) return 1;

  int maxN = (N-first.size())/first.size()+1;
  int lo = 1, hi = maxN-1, res = maxN, mid;
  while (lo <= hi) {
    mid = (lo+hi)/2;
    if (check(N, mid)) {
      res = mid;
      hi = mid - 1;
    } else
      lo = mid + 1;
  }

  return res;
}

Compilation message

insects.cpp: In function 'bool check(int, int)':
insects.cpp:63:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |   for (int i = 0; i < inside.size(); i++) move_outside(inside[i]);
      |                   ~~^~~~~~~~~~~~~~~
insects.cpp:73:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |   for (int i = 0; i < outside.size(); i++) {
      |                   ~~^~~~~~~~~~~~~~~~
insects.cpp:88:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |   for (int i = 0; i < first.size() && !res; i++) {
      |                   ~~^~~~~~~~~~~~~~
insects.cpp:96:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   96 |   for (int i = 0; i < outside2.size(); i++) move_outside(outside2[i]);
      |                   ~~^~~~~~~~~~~~~~~~~
insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:111:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  111 |   for (int i = 0; i < first.size(); i++) move_outside(first[i]);
      |                   ~~^~~~~~~~~~~~~~
insects.cpp:114:20: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  114 |   if (first.size() > N/2) return 1;
      |       ~~~~~~~~~~~~~^~~~~

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 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 5 ms 600 KB Output is correct
9 Correct 6 ms 600 KB Output is correct
10 Correct 6 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 6 ms 440 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 5 ms 600 KB Output is correct
15 Correct 6 ms 600 KB Output is correct
16 Correct 5 ms 344 KB Output is correct
17 Correct 5 ms 344 KB Output is correct
18 Correct 5 ms 436 KB Output is correct
19 Correct 4 ms 344 KB Output is correct
20 Correct 4 ms 600 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 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 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 5 ms 600 KB Output is correct
9 Correct 6 ms 600 KB Output is correct
10 Correct 6 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 6 ms 440 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 5 ms 600 KB Output is correct
15 Correct 6 ms 600 KB Output is correct
16 Correct 5 ms 344 KB Output is correct
17 Correct 5 ms 344 KB Output is correct
18 Correct 5 ms 436 KB Output is correct
19 Correct 4 ms 344 KB Output is correct
20 Correct 4 ms 600 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 5 ms 344 KB Output is correct
24 Correct 4 ms 856 KB Output is correct
25 Correct 29 ms 676 KB Output is correct
26 Correct 32 ms 924 KB Output is correct
27 Correct 40 ms 688 KB Output is correct
28 Correct 4 ms 600 KB Output is correct
29 Correct 51 ms 696 KB Output is correct
30 Correct 33 ms 600 KB Output is correct
31 Correct 41 ms 924 KB Output is correct
32 Correct 40 ms 1428 KB Output is correct
33 Correct 39 ms 928 KB Output is correct
34 Correct 44 ms 676 KB Output is correct
35 Correct 37 ms 920 KB Output is correct
36 Correct 41 ms 668 KB Output is correct
37 Correct 29 ms 668 KB Output is correct
38 Correct 26 ms 856 KB Output is correct
39 Correct 18 ms 600 KB Output is correct
40 Correct 10 ms 856 KB Output is correct
41 Correct 4 ms 344 KB Output is correct

Subtask #3
22.48 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 596 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 340 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Partially correct 1 ms 596 KB Output is partially correct
7 Correct 8 ms 344 KB Output is correct
8 Correct 7 ms 856 KB Output is correct
9 Partially correct 68 ms 920 KB Output is partially correct
10 Partially correct 65 ms 1188 KB Output is partially correct
11 Partially correct 122 ms 436 KB Output is partially correct
12 Correct 20 ms 1104 KB Output is correct
13 Partially correct 114 ms 1360 KB Output is partially correct
14 Partially correct 69 ms 592 KB Output is partially correct
15 Partially correct 79 ms 1152 KB Output is partially correct
16 Partially correct 93 ms 924 KB Output is partially correct
17 Partially correct 92 ms 1112 KB Output is partially correct
18 Partially correct 87 ms 920 KB Output is partially correct
19 Partially correct 98 ms 852 KB Output is partially correct
20 Partially correct 85 ms 920 KB Output is partially correct
21 Partially correct 75 ms 1364 KB Output is partially correct
22 Partially correct 89 ms 1108 KB Output is partially correct
23 Partially correct 46 ms 596 KB Output is partially correct
24 Partially correct 41 ms 680 KB Output is partially correct
25 Correct 21 ms 852 KB Output is correct
26 Correct 9 ms 440 KB Output is correct
27 Partially correct 63 ms 848 KB Output is partially correct
28 Partially correct 69 ms 1352 KB Output is partially correct
29 Partially correct 79 ms 676 KB Output is partially correct
30 Partially correct 96 ms 688 KB Output is partially correct
31 Partially correct 59 ms 928 KB Output is partially correct
32 Partially correct 74 ms 1428 KB Output is partially correct
33 Partially correct 61 ms 848 KB Output is partially correct
34 Partially correct 67 ms 604 KB Output is partially correct
35 Partially correct 79 ms 1108 KB Output is partially correct
36 Partially correct 89 ms 1180 KB Output is partially correct
37 Partially correct 69 ms 1172 KB Output is partially correct
38 Partially correct 63 ms 920 KB Output is partially correct
39 Partially correct 62 ms 680 KB Output is partially correct
40 Partially correct 57 ms 932 KB Output is partially correct
41 Partially correct 70 ms 928 KB Output is partially correct
42 Partially correct 79 ms 916 KB Output is partially correct
43 Partially correct 21 ms 604 KB Output is partially correct
44 Partially correct 97 ms 592 KB Output is partially correct
45 Partially correct 70 ms 900 KB Output is partially correct
46 Correct 26 ms 1356 KB Output is correct
47 Correct 20 ms 848 KB Output is correct
48 Correct 21 ms 852 KB Output is correct