Submission #1113726

#	Time	Username	Problem	Language	Result	Execution time	Memory
1113726		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) {

        ++cnt;
        if(cnt > 10)
            exit(0);

        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);
            }
        }

        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:10:11: error: 'cnt' was not declared in this scope; did you mean 'int'?
   10 |         ++cnt;
      |           ^~~
      |           int
insects.cpp:12:13: error: 'exit' was not declared in this scope
   12 |             exit(0);
      |             ^~~~
insects.cpp:18:9: error: 'vector' was not declared in this scope
   18 |         vector<int> poz;
      |         ^~~~~~
insects.cpp:18:9: 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:18:16: error: expected primary-expression before 'int'
   18 |         vector<int> poz;
      |                ^~~
insects.cpp:20:17: error: 'vis' was not declared in this scope
   20 |             if (vis[i]) {
      |                 ^~~
insects.cpp:28:13: error: 'poz' was not declared in this scope
   28 |             poz.emplace_back(i);
      |             ^~~
insects.cpp:31:24: error: 'poz' was not declared in this scope
   31 |         for (auto it : poz) {
      |                        ^~~
insects.cpp:35:13: error: 'poz' was not declared in this scope
   35 |         if (poz.size() == mid * d) { /// e plin
      |             ^~~
insects.cpp:37:17: error: 'vis' was not declared in this scope
   37 |                 vis[it] = true;
      |                 ^~~
insects.cpp:42:20: error: 'min' was not declared in this scope; did you mean 'std::min'?
   42 |             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:46:21: error: 'vis' was not declared in this scope
   46 |                 if (vis[i]) {
      |                     ^~~
insects.cpp:53:21: error: 'vis' was not declared in this scope
   53 |                     vis[i] = true;
      |                     ^~~
insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:62:9: error: 'vector' was not declared in this scope
   62 |         vector<bool> vis(N + 1);
      |         ^~~~~~
insects.cpp:62:9: 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:62:16: error: expected primary-expression before 'bool'
   62 |         vector<bool> vis(N + 1);
      |                ^~~~
insects.cpp:67:20: error: expected primary-expression before 'int'
   67 |             vector<int> temp;
      |                    ^~~
insects.cpp:74:17: error: 'temp' was not declared in this scope
   74 |                 temp.emplace_back(i);
      |                 ^~~~
insects.cpp:76:17: error: 'temp' was not declared in this scope
   76 |             d = temp.size();
      |                 ^~~~
insects.cpp:84:43: error: 'vis' was not declared in this scope
   84 |             check(N, d, always_add, rsBs, vis);
      |                                           ^~~