oj.uz

Submission #770519

# Submission time Handle Problem Language Result Execution time Memory
770519 2023-07-01T11:23:58 Z alex_2008 Rarest Insects (IOI22_insects) C++17
99.89 / 100
 52 ms 440 KB 
#include "insects.h"
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
typedef pair<int, int> pii;
 
constexpr int maxn = 2e3 + 9;
 
bool removed[maxn] = { 0 };
 
vector <int> in_machine;
 
mt19937 rng(19812034);
 
int min_cardinality(int n) {
 
    vector <int> m(n);
    for (int i = 0; i < n; i++) m[i] = i;
 
    // Find group
 
    int i;
    for (int y = 0; y < n; y++)
    {  
        i = m[y];
        move_inside(i);
        if (press_button() > 1) {
            move_outside(i);
        } else {
            in_machine.emplace_back(i);
            removed[i] = true;
        }
    }
 
    int g = in_machine.size();
 
    int l = 1, r = n / g;
    int mid;
    while (l != r)
    {
        mid = (l + r + 1) >> 1;
 
 
        vector <int> taken_out, taken_in;
 
        int i;
        for (int y = 0; y < n; y++)
        {
            i = m[y];
            if (removed[i]) continue;
 
            move_inside(i);
            if (press_button() > mid) {
                taken_out.emplace_back(i);
                move_outside(i);
            } else {
                taken_in.emplace_back(i);
                in_machine.emplace_back(i);
            }
        }
 
        
        if ((int)in_machine.size() == mid * g)
        {
            // Mid is lowerbound
            l = mid;
 
            for (int i : taken_in) removed[i] = true;
        } else {
            r = mid - 1;
 
            for (int i : taken_out) removed[i] = true;
            for (int i : taken_in) {
                move_outside(i);
                in_machine.pop_back();
            }
        }
    }
 
 
    return l;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 6 ms 304 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 5 ms 308 KB Output is correct
9 Correct 5 ms 208 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 3 ms 208 KB Output is correct
12 Correct 4 ms 208 KB Output is correct
13 Correct 4 ms 308 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 4 ms 208 KB Output is correct
16 Correct 4 ms 208 KB Output is correct
17 Correct 5 ms 308 KB Output is correct
18 Correct 5 ms 208 KB Output is correct
19 Correct 4 ms 208 KB Output is correct
20 Correct 4 ms 304 KB Output is correct
21 Correct 3 ms 208 KB Output is correct
22 Correct 2 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 6 ms 304 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 5 ms 308 KB Output is correct
9 Correct 5 ms 208 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 3 ms 208 KB Output is correct
12 Correct 4 ms 208 KB Output is correct
13 Correct 4 ms 308 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 4 ms 208 KB Output is correct
16 Correct 4 ms 208 KB Output is correct
17 Correct 5 ms 308 KB Output is correct
18 Correct 5 ms 208 KB Output is correct
19 Correct 4 ms 208 KB Output is correct
20 Correct 4 ms 304 KB Output is correct
21 Correct 3 ms 208 KB Output is correct
22 Correct 2 ms 208 KB Output is correct
23 Correct 19 ms 316 KB Output is correct
24 Correct 9 ms 208 KB Output is correct
25 Correct 15 ms 292 KB Output is correct
26 Correct 24 ms 300 KB Output is correct
27 Correct 9 ms 208 KB Output is correct
28 Correct 9 ms 208 KB Output is correct
29 Correct 10 ms 316 KB Output is correct
30 Correct 19 ms 208 KB Output is correct
31 Correct 25 ms 296 KB Output is correct
32 Correct 23 ms 308 KB Output is correct
33 Correct 19 ms 296 KB Output is correct
34 Correct 18 ms 208 KB Output is correct
35 Correct 16 ms 324 KB Output is correct
36 Correct 23 ms 208 KB Output is correct
37 Correct 17 ms 208 KB Output is correct
38 Correct 14 ms 436 KB Output is correct
39 Correct 11 ms 316 KB Output is correct
40 Correct 11 ms 312 KB Output is correct
41 Correct 6 ms 208 KB Output is correct

Subtask #3
74.89 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 50 ms 296 KB Output is correct
8 Correct 17 ms 208 KB Output is correct
9 Correct 52 ms 312 KB Output is correct
10 Correct 51 ms 308 KB Output is correct
11 Correct 33 ms 296 KB Output is correct
12 Correct 21 ms 320 KB Output is correct
13 Correct 43 ms 312 KB Output is correct
14 Correct 40 ms 308 KB Output is correct
15 Correct 22 ms 308 KB Output is correct
16 Correct 36 ms 304 KB Output is correct
17 Correct 25 ms 312 KB Output is correct
18 Correct 46 ms 312 KB Output is correct
19 Partially correct 51 ms 208 KB Output is partially correct
20 Correct 50 ms 308 KB Output is correct
21 Correct 32 ms 312 KB Output is correct
22 Correct 36 ms 300 KB Output is correct
23 Correct 33 ms 440 KB Output is correct
24 Correct 33 ms 316 KB Output is correct
25 Correct 23 ms 316 KB Output is correct
26 Correct 13 ms 208 KB Output is correct
27 Correct 31 ms 420 KB Output is correct
28 Correct 36 ms 304 KB Output is correct
29 Partially correct 35 ms 300 KB Output is partially correct
30 Partially correct 50 ms 292 KB Output is partially correct
31 Correct 27 ms 312 KB Output is correct
32 Correct 42 ms 304 KB Output is correct
33 Correct 46 ms 300 KB Output is correct
34 Correct 39 ms 296 KB Output is correct
35 Partially correct 38 ms 316 KB Output is partially correct
36 Partially correct 32 ms 292 KB Output is partially correct
37 Correct 45 ms 296 KB Output is correct
38 Correct 36 ms 308 KB Output is correct
39 Correct 41 ms 208 KB Output is correct
40 Correct 48 ms 312 KB Output is correct
41 Partially correct 48 ms 304 KB Output is partially correct
42 Partially correct 44 ms 312 KB Output is partially correct
43 Correct 11 ms 208 KB Output is correct
44 Correct 33 ms 432 KB Output is correct
45 Correct 48 ms 296 KB Output is correct
46 Correct 22 ms 308 KB Output is correct
47 Correct 19 ms 304 KB Output is correct
48 Correct 21 ms 320 KB Output is correct