Submission #1113727

#	Time	Username	Problem	Language	Result	Execution time	Memory
1113727		db_123	Rarest Insects (IOI22_insects)	C++17	Compilation error	0 ms	0 KiB

insects

#include "insects.h"
#include <vector>
#include <set>
#include <unordered_map> 

int n;

void check(int N, int d, int &always_add, int &rsBs, vector<bool> &vis) {

    int mid = N / (2 * d);
    if(mid == 0)
        mid = 1;

    vector<int> poz;
    for (int i = 1; i <= n; i++) {
        if (vis[i]) {
            continue;
        }
        move_inside(i);
        if (press_button() > mid) {
            move_outside(i);
            continue;
        }
        poz.emplace_back(i);
    }

    for (auto it : poz) {
        move_outside(it);
    }

    if (poz.size() == mid * d) { /// e plin
        for (auto it : poz) {
            vis[it] = true;
        }
        always_add += poz.size() / d;
    }
    else if (poz.size() < mid * d) { /// nu e plin
        rsBs = min(rsBs, mid);

        int idx = 0;
        for (int i = 1; i <= n; i++) {
            if (vis[i]) {
                continue;
            }
            while (idx < poz.size() && poz[idx] < i) {
                idx ++;
            }
            if (poz[idx] != i) {
                vis[i] = true;
            }
        }
    }
    return;
}

int min_cardinality(int N) {

    vector<bool> vis(N + 1);
	n = N;

    int d = 0;
    {
        vector<int> temp;
        for (int i = 1; i <= n; i++) {
            move_inside(i);
            if (press_button() > 1) {
                move_outside(i);
                continue;
            }
            temp.emplace_back(i);
        }
        d = temp.size();
        for (auto it : temp) {
            move_outside(it);
        }
    }

    

    //cout << "d: " << d << '\n';

    int always_add = 0, rsBs = 1e9;
    while (N >= d) {
        check(N, d, always_add, rsBs, vis);
        int cnt = 0;
        for (int i = 1; i <= n; i++) {
            if (vis[i]) {
                continue;
            }
            cnt ++;
        }
        N = cnt;
    }

    return always_add;
}

Compilation message (stderr)

insects.cpp:8:54: error: 'vector' has not been declared
    8 | void check(int N, int d, int &always_add, int &rsBs, vector<bool> &vis) {
      |                                                      ^~~~~~
insects.cpp:8:60: error: expected ',' or '...' before '<' token
    8 | void check(int N, int d, int &always_add, int &rsBs, vector<bool> &vis) {
      |                                                            ^
insects.cpp: In function 'void check(int, int, int&, int&, int)':
insects.cpp:14:5: error: 'vector' was not declared in this scope
   14 |     vector<int> poz;
      |     ^~~~~~
insects.cpp:14:5: note: suggested alternatives:
In file included from /usr/include/c++/10/vector:67,
                 from insects.cpp:2:
/usr/include/c++/10/bits/stl_vector.h:389:11: note:   'std::vector'
  389 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
In file included from insects.cpp:2:
/usr/include/c++/10/vector:86:13: note:   'std::pmr::vector'
   86 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |             ^~~~~~
insects.cpp:14:12: error: expected primary-expression before 'int'
   14 |     vector<int> poz;
      |            ^~~
insects.cpp:16:13: error: 'vis' was not declared in this scope
   16 |         if (vis[i]) {
      |             ^~~
insects.cpp:24:9: error: 'poz' was not declared in this scope
   24 |         poz.emplace_back(i);
      |         ^~~
insects.cpp:27:20: error: 'poz' was not declared in this scope
   27 |     for (auto it : poz) {
      |                    ^~~
insects.cpp:31:9: error: 'poz' was not declared in this scope
   31 |     if (poz.size() == mid * d) { /// e plin
      |         ^~~
insects.cpp:33:13: error: 'vis' was not declared in this scope
   33 |             vis[it] = true;
      |             ^~~
insects.cpp:38:16: error: 'min' was not declared in this scope; did you mean 'std::min'?
   38 |         rsBs = min(rsBs, mid);
      |                ^~~
      |                std::min
In file included from /usr/include/c++/10/vector:60,
                 from insects.cpp:2:
/usr/include/c++/10/bits/stl_algobase.h:278:5: note: 'std::min' declared here
  278 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
insects.cpp:42:17: error: 'vis' was not declared in this scope
   42 |             if (vis[i]) {
      |                 ^~~
insects.cpp:49:17: error: 'vis' was not declared in this scope
   49 |                 vis[i] = true;
      |                 ^~~
insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:58:5: error: 'vector' was not declared in this scope
   58 |     vector<bool> vis(N + 1);
      |     ^~~~~~
insects.cpp:58:5: note: suggested alternatives:
In file included from /usr/include/c++/10/vector:67,
                 from insects.cpp:2:
/usr/include/c++/10/bits/stl_vector.h:389:11: note:   'std::vector'
  389 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
In file included from insects.cpp:2:
/usr/include/c++/10/vector:86:13: note:   'std::pmr::vector'
   86 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |             ^~~~~~
insects.cpp:58:12: error: expected primary-expression before 'bool'
   58 |     vector<bool> vis(N + 1);
      |            ^~~~
insects.cpp:63:16: error: expected primary-expression before 'int'
   63 |         vector<int> temp;
      |                ^~~
insects.cpp:70:13: error: 'temp' was not declared in this scope
   70 |             temp.emplace_back(i);
      |             ^~~~
insects.cpp:72:13: error: 'temp' was not declared in this scope
   72 |         d = temp.size();
      |             ^~~~
insects.cpp:84:39: error: 'vis' was not declared in this scope
   84 |         check(N, d, always_add, rsBs, vis);
      |                                       ^~~