Submission #1223862

#	Time	Username	Problem	Language	Result	Execution time	Memory
1223862		bangan	Rarest Insects (IOI22_insects)	C++20	Compilation error	0 ms	0 KiB

insects

#include "insects.h"
#include <bits/stdc++.h>
using namespace std;

#define pb push_back

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

int n;
int unq;

bool ok(int k) {
    vector<int> in;
    for (int i=0; i<n; i++) {
        move_inside(i);
        if (press_button() > k) move_outside(i);
        else in.pb(i);
    }
    bool ret = unq * k == in.size();
    while (!in.empty()) {
        move_outside(in.back());
        in.pop_back();
    }
    return ret;
}

int min_cardinality(int N) {
    vector<int> in;
    for (int i = 0; i < N; i++) {
        move_inside(i);
        if (press_button() == 2) move_outside(i);
        else in.pb(i);
    }

    unq = in.size();
    while (!in.empty()) {
        move_outside(in.back());
        in.pop_back();
    }

    if (unq <= 9) {
        vector<int> all;
        for (int i=0; i<N; i++) all.pb(i);

        unq--;
        int ans = N;
        while (unq--) {
            vector<int> rem;
            int cur = 0;
            while (!all.empty()) {
                int i = all.back();
                all.pop_back();
                move_inside(i);
                int res = press_button();
                if (res == cur) {
                    move_outside(i);
                    rem.pb(i);
                }
                else {
                    in.pb(i);
                }
                cur = res;
            }
            ans = min(ans, cur);
            all = rem;
            while (!in.empty()) {
                move_outside(in.back());
                in.pop_back();
            }
        }
        return min(all.size(), ans);
    }

    n = N;
    int l = 1, r = n / unq;
    while (l != r) {
        int mid = (l+r+1) / 2;
        ok(mid) ? l = mid : r = mid - 1;
    }
    return l;
}

Compilation message (stderr)

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:71:19: error: no matching function for call to 'min(std::vector<int>::size_type, int&)'
   71 |         return min(all.size(), ans);
      |                ~~~^~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/bits/specfun.h:45,
                 from /usr/include/c++/11/cmath:1935,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
                 from insects.cpp:2:
/usr/include/c++/11/bits/stl_algobase.h:230:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  230 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/11/bits/stl_algobase.h:230:5: note:   template argument deduction/substitution failed:
insects.cpp:71:19: note:   deduced conflicting types for parameter 'const _Tp' ('long unsigned int' and 'int')
   71 |         return min(all.size(), ans);
      |                ~~~^~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/bits/specfun.h:45,
                 from /usr/include/c++/11/cmath:1935,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
                 from insects.cpp:2:
/usr/include/c++/11/bits/stl_algobase.h:278:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  278 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/11/bits/stl_algobase.h:278:5: note:   template argument deduction/substitution failed:
insects.cpp:71:19: note:   deduced conflicting types for parameter 'const _Tp' ('long unsigned int' and 'int')
   71 |         return min(all.size(), ans);
      |                ~~~^~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/string:52,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from insects.cpp:2:
/usr/include/c++/11/bits/stl_algo.h:3449:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(std::initializer_list<_Tp>)'
 3449 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/11/bits/stl_algo.h:3449:5: note:   template argument deduction/substitution failed:
insects.cpp:71:19: note:   mismatched types 'std::initializer_list<_Tp>' and 'long unsigned int'
   71 |         return min(all.size(), ans);
      |                ~~~^~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/string:52,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from insects.cpp:2:
/usr/include/c++/11/bits/stl_algo.h:3455:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(std::initializer_list<_Tp>, _Compare)'
 3455 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/11/bits/stl_algo.h:3455:5: note:   template argument deduction/substitution failed:
insects.cpp:71:19: note:   mismatched types 'std::initializer_list<_Tp>' and 'long unsigned int'
   71 |         return min(all.size(), ans);
      |                ~~~^~~~~~~~~~~~~~~~~