Submission #1212555

#	Time	Username	Problem	Language	Result	Execution time	Memory
1212555		dima2101	Super Dango Maker (JOI22_dango3)	C++20	Compilation error	0 ms	0 KiB

dango3

#include <bits/stdc++.h>
#include "dango3.h"

int GetMax(const std::vector<int> &x, int n, int m)
{

    std::vector<bool> used(n * m + 1, false);
    for (int i : x)
    {
        used[x] = true;
    }
    std::vector<int> now;
    for (int i = 0; i < n * m; i++)
    {
        if (!used[i + 1])
        {
            now.push_back(i + 1);
        }
    }
    return m - Query(now);
}

void Solve(int n, int m)
{
    std::vector<std::vector<int>> ans(m);

    for (int i = 1; i <= n * m; i++)
    {
        int l = -1, r = m;
        while (l + 1 < r)
        {
            int mid = (l + r) / 2;
            ans[mid].push_back(i);
            if (GetMax(ans[mid], n, m) == 2)
            {
                l = mid;
            }
            else
            {
                r = mid;
            }
            ans[mid].pop_back();
        }
        // assert(r != m);
        ans[r].push_back(i);
    }
    for (int i = 0; i < m; i++)
    {
        Answer(ans[i]);
    }
}

Compilation message (stderr)

dango3.cpp: In function 'int GetMax(const std::vector<int>&, int, int)':
dango3.cpp:10:13: error: no match for 'operator[]' (operand types are 'std::vector<bool>' and 'const std::vector<int>')
   10 |         used[x] = true;
      |             ^
In file included from /usr/include/c++/11/vector:68,
                 from /usr/include/c++/11/functional:62,
                 from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/11/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
                 from dango3.cpp:1:
/usr/include/c++/11/bits/stl_bvector.h:906:7: note: candidate: 'std::vector<bool, _Alloc>::reference std::vector<bool, _Alloc>::operator[](std::vector<bool, _Alloc>::size_type) [with _Alloc = std::allocator<bool>; std::vector<bool, _Alloc>::reference = std::vector<bool>::reference; std::vector<bool, _Alloc>::size_type = long unsigned int]'
  906 |       operator[](size_type __n)
      |       ^~~~~~~~
/usr/include/c++/11/bits/stl_bvector.h:906:28: note:   no known conversion for argument 1 from 'const std::vector<int>' to 'std::vector<bool>::size_type' {aka 'long unsigned int'}
  906 |       operator[](size_type __n)
      |                  ~~~~~~~~~~^~~
/usr/include/c++/11/bits/stl_bvector.h:910:7: note: candidate: 'std::vector<bool, _Alloc>::const_reference std::vector<bool, _Alloc>::operator[](std::vector<bool, _Alloc>::size_type) const [with _Alloc = std::allocator<bool>; std::vector<bool, _Alloc>::const_reference = bool; std::vector<bool, _Alloc>::size_type = long unsigned int]'
  910 |       operator[](size_type __n) const
      |       ^~~~~~~~
/usr/include/c++/11/bits/stl_bvector.h:910:28: note:   no known conversion for argument 1 from 'const std::vector<int>' to 'std::vector<bool>::size_type' {aka 'long unsigned int'}
  910 |       operator[](size_type __n) const
      |                  ~~~~~~~~~~^~~