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Submission #1085492

# Submission time Handle Problem Language Result Execution time Memory
1085492 2024-09-08T10:35:39 Z SamueleVid Rarest Insects (IOI22_insects) C++17
61.79 / 100
 103 ms 980 KB 
#include <bits/stdc++.h>
using namespace std;
 
void move_inside(int i);
void move_outside(int i);
int press_button();
 
set<int> dentro;

vector<int> sol(vector<int> types, vector<int> usable) {
    // cout << "types : ";
    // for (auto x : types) cout << x << " ";
    // cout << '\n';
    // cout << "usable : ";
    // for (auto x : usable) cout << x << " ";
    // cout << '\n';
 
    vector<int> res;
    if (usable.size() == 0) {
        for (auto x : types) res.push_back(1);
        return res;
    }
    if (types.size() == 1) {
        res.push_back(usable.size() + 1);
        return res;
    }
    vector<int> sx, dx;
    
    for (auto i : usable) {
        if (i < types[types.size() / 2]) sx.push_back(i);
        else dx.push_back(i);
    }
 
    vector<int> types_sx, types_dx;
    for (int i = 0; i < types.size() / 2; i ++) types_sx.push_back(types[i]);
    for (int i = types.size() / 2; i < types.size(); i ++) types_dx.push_back(types[i]);
 
    // cout << "mezzo : " << types[types.size() / 2] << '\n';
    // cout << "dx : ";
    // for (auto x : dx) cout << x << " ";
    // cout << '\n'; 
    // cout << "type_dx : ";
    // for (auto x : types_dx) cout << x << " ";
    // cout << '\n'; 
 
    vector<int> pusha_sx = sx;
    vector<int> pusha_dx;

    // praticamente ne tolgo solo alcuni perché potrebbero essere già alcuni giusti
    set<int> types_dx_set;
    for (auto x : types_dx) types_dx_set.insert(x);
    vector<int> to_remove, to_add;
    
    for (auto x : dentro) {
        if (!types_dx_set.count(x)) {
            to_remove.push_back(x);
            move_outside(x);
        }
    }
    for (auto x : to_remove) dentro.erase(x);

    for (auto x : types_dx_set) {
        if (!dentro.count(x)) {
            to_add.push_back(x);
            move_inside(x);
        }
    }
    for (auto x : to_add) dentro.insert(x);
    // ora dentro ci sono solo quelli di types_dx
    
    for (auto x : dx) {
        move_inside(x);
        if (press_button() == 2) { // fa parte dei gruppi
            pusha_dx.push_back(x);
        }
        else { // == 1, è dei gruppi a sinistra
            pusha_sx.push_back(x);
        }
        move_outside(x);
    }
    // for (auto x : types_dx) move_outside(x);
 
    vector<int> res_dx = sol(types_dx, pusha_dx); // vado prima a destra per conservare alcuni in dentro
    vector<int> res_sx = sol(types_sx, pusha_sx);
    for (auto x : res_sx) res.push_back(x);
    for (auto x : res_dx) res.push_back(x);
 
    return res;
}
 
int min_cardinality(int N) {
    // il primo elemento di tutti i gruppi
    vector<int> types;
    for (int i = 0; i < N; i ++) {
        move_inside(i);
        if (press_button() > 1) {
            move_outside(i);
            continue;
        }
        types.push_back(i);
    }
    for (auto x : types) dentro.insert(x);
 
    set<int> types_set;
    for (auto x : types) types_set.insert(x);
 
    vector<int> usable;
    for (int i = 0; i < N; i ++) if (!types_set.count(i)) usable.push_back(i);
    vector<int> res = sol(types, usable);
 
    int minim = N;
    for (auto x : res) minim = min(minim, x);
 
    return minim;
}

Compilation message

insects.cpp: In function 'std::vector<int> sol(std::vector<int>, std::vector<int>)':
insects.cpp:20:19: warning: unused variable 'x' [-Wunused-variable]
   20 |         for (auto x : types) res.push_back(1);
      |                   ^
insects.cpp:35:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |     for (int i = 0; i < types.size() / 2; i ++) types_sx.push_back(types[i]);
      |                     ~~^~~~~~~~~~~~~~~~~~
insects.cpp:36:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |     for (int i = types.size() / 2; i < types.size(); i ++) types_dx.push_back(types[i]);
      |                                    ~~^~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# 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 1 ms 432 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 4 ms 440 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 4 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 4 ms 444 KB Output is correct
14 Correct 5 ms 344 KB Output is correct
15 Correct 4 ms 600 KB Output is correct
16 Correct 4 ms 436 KB Output is correct
17 Correct 4 ms 344 KB Output is correct
18 Correct 5 ms 432 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 8 ms 344 KB Output is correct
21 Correct 5 ms 452 KB Output is correct
22 Correct 4 ms 464 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 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 1 ms 432 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 4 ms 440 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 4 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 4 ms 444 KB Output is correct
14 Correct 5 ms 344 KB Output is correct
15 Correct 4 ms 600 KB Output is correct
16 Correct 4 ms 436 KB Output is correct
17 Correct 4 ms 344 KB Output is correct
18 Correct 5 ms 432 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 8 ms 344 KB Output is correct
21 Correct 5 ms 452 KB Output is correct
22 Correct 4 ms 464 KB Output is correct
23 Correct 5 ms 344 KB Output is correct
24 Correct 6 ms 344 KB Output is correct
25 Correct 29 ms 592 KB Output is correct
26 Correct 22 ms 600 KB Output is correct
27 Correct 8 ms 432 KB Output is correct
28 Correct 29 ms 772 KB Output is correct
29 Correct 17 ms 452 KB Output is correct
30 Correct 39 ms 848 KB Output is correct
31 Correct 14 ms 592 KB Output is correct
32 Correct 19 ms 692 KB Output is correct
33 Correct 24 ms 600 KB Output is correct
34 Correct 27 ms 940 KB Output is correct
35 Correct 35 ms 448 KB Output is correct
36 Correct 32 ms 700 KB Output is correct
37 Correct 45 ms 700 KB Output is correct
38 Correct 36 ms 716 KB Output is correct
39 Correct 49 ms 652 KB Output is correct
40 Correct 26 ms 592 KB Output is correct
41 Correct 21 ms 600 KB Output is correct

Subtask #3
36.79 / 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 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 8 ms 436 KB Output is correct
8 Correct 11 ms 600 KB Output is correct
9 Partially correct 71 ms 472 KB Output is partially correct
10 Partially correct 61 ms 732 KB Output is partially correct
11 Correct 20 ms 344 KB Output is correct
12 Partially correct 73 ms 856 KB Output is partially correct
13 Partially correct 27 ms 928 KB Output is partially correct
14 Partially correct 73 ms 732 KB Output is partially correct
15 Partially correct 35 ms 728 KB Output is partially correct
16 Partially correct 59 ms 592 KB Output is partially correct
17 Partially correct 50 ms 972 KB Output is partially correct
18 Partially correct 55 ms 668 KB Output is partially correct
19 Partially correct 53 ms 492 KB Output is partially correct
20 Partially correct 67 ms 980 KB Output is partially correct
21 Partially correct 84 ms 852 KB Output is partially correct
22 Partially correct 86 ms 672 KB Output is partially correct
23 Partially correct 92 ms 760 KB Output is partially correct
24 Partially correct 103 ms 636 KB Output is partially correct
25 Partially correct 65 ms 436 KB Output is partially correct
26 Partially correct 65 ms 856 KB Output is partially correct
27 Partially correct 68 ms 476 KB Output is partially correct
28 Partially correct 78 ms 704 KB Output is partially correct
29 Partially correct 74 ms 728 KB Output is partially correct
30 Partially correct 68 ms 892 KB Output is partially correct
31 Partially correct 66 ms 740 KB Output is partially correct
32 Partially correct 92 ms 484 KB Output is partially correct
33 Partially correct 99 ms 924 KB Output is partially correct
34 Partially correct 92 ms 484 KB Output is partially correct
35 Partially correct 66 ms 484 KB Output is partially correct
36 Partially correct 66 ms 716 KB Output is partially correct
37 Partially correct 72 ms 476 KB Output is partially correct
38 Partially correct 73 ms 488 KB Output is partially correct
39 Partially correct 79 ms 488 KB Output is partially correct
40 Partially correct 68 ms 712 KB Output is partially correct
41 Partially correct 59 ms 724 KB Output is partially correct
42 Partially correct 75 ms 664 KB Output is partially correct
43 Partially correct 8 ms 600 KB Output is partially correct
44 Partially correct 19 ms 488 KB Output is partially correct
45 Correct 22 ms 452 KB Output is correct
46 Correct 13 ms 680 KB Output is correct
47 Partially correct 56 ms 892 KB Output is partially correct
48 Partially correct 22 ms 844 KB Output is partially correct