답안 #619769

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
619769 2022-08-02T15:39:31 Z Sergio_2357 Simurgh (IOI17_simurgh) C++17
컴파일 오류
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#include "simurgh.h"
#include <bits/stdc++.h>

using namespace std;

typedef vector<int> vi;

struct DSU {
    vi v, sz;
    int cg;
    int find(int x)
    {
        if (v[x] == -1)
            return x;
        v[x] = find(v[x]);
        return v[x];
    }
    void join(int a, int b)
    {
        a = find(a);
        b = find(b);
        if (a == b)
            return;
        cg--;
        if (sz[a] > sz[b])
            swap(a, b);
        v[a] = b;
        sz[b] += sz[a];
    }
    DSU(int n)
    {
        v = vi(n + 10, -1);
        sz = vi(n + 10, 1);
        cg = n;
    }
};

bool test(vi u, vi v)
{
    DSU dsu(u.size());
    for (int i = 0; i < u.size(); i++)
        dsu.join(u[i], v[i]);
    return dsu.cg == 1;
}

vi to_list(int b, int ma)
{
    vi r;
    for (int i = 0; i < ma; i++) {
        if (b & (1ll << i))
            r.push_back(i);
    }
    return r;
}

vi find_roads(int n, vi u, vi v)
{
    //cout << "YES" << endl;
    for (int b = 0; b < (1ll << (u.size())); b++) {
        vi tu, tv;
        vi lst = to_list(b, u.size());
        for (int x : lst) {
            tu.push_back(u[x]);
            tv.push_back(v[x]);
        }
        if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
            int xy = 0;
            while (true) {
                xy++;
            }
            return lst;
        }
    }
    int xyy = 0;
    while (true) {
        xyy++;
    }
    return to_list((1ll << (n - 1)) - 1, n);
}

Compilation message

simurgh.cpp: In function 'bool test(vi, vi)':
simurgh.cpp:41:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |     for (int i = 0; i < u.size(); i++)
      |                     ~~^~~~~~~~~~
simurgh.cpp: In function 'vi find_roads(int, vi, vi)':
simurgh.cpp:66:24: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |             ~~~~~~~~~~~^~~~~~~~
simurgh.cpp:66:77: error: no match for 'operator==' (operand types are 'int' and 'vi' {aka 'std::vector<int>'})
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                     ~~~~~~~~~~~~~~~~~~~~~~~ ^~ ~~~~~
      |                                                                       |         |
      |                                                                       int       vi {aka std::vector<int>}
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from simurgh.cpp:2:
/usr/include/c++/10/bits/regex.h:1035:5: note: candidate: 'template<class _BiIter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const std::__cxx11::sub_match<_BiIter>&)'
 1035 |     operator==(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1035:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from simurgh.cpp:2:
/usr/include/c++/10/bits/regex.h:1131:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator==(std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&, const std::__cxx11::sub_match<_BiIter>&)'
 1131 |     operator==(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1131:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   mismatched types 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>' and 'int'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from simurgh.cpp:2:
/usr/include/c++/10/bits/regex.h:1206:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)'
 1206 |     operator==(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1206:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from simurgh.cpp:2:
/usr/include/c++/10/bits/regex.h:1298:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const typename std::iterator_traits<_Iter>::value_type*, const std::__cxx11::sub_match<_BiIter>&)'
 1298 |     operator==(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1298:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   'vi' {aka 'std::vector<int>'} is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from simurgh.cpp:2:
/usr/include/c++/10/bits/regex.h:1373:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)'
 1373 |     operator==(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1373:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from simurgh.cpp:2:
/usr/include/c++/10/bits/regex.h:1466:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const typename std::iterator_traits<_Iter>::value_type&, const std::__cxx11::sub_match<_BiIter>&)'
 1466 |     operator==(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1466:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   'vi' {aka 'std::vector<int>'} is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from simurgh.cpp:2:
/usr/include/c++/10/bits/regex.h:1545:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)'
 1545 |     operator==(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1545:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from simurgh.cpp:2:
/usr/include/c++/10/bits/regex.h:2101:5: note: candidate: 'template<class _Bi_iter, class _Alloc> bool std::__cxx11::operator==(const std::__cxx11::match_results<_BiIter, _Alloc>&, const std::__cxx11::match_results<_BiIter, _Alloc>&)'
 2101 |     operator==(const match_results<_Bi_iter, _Alloc>& __m1,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:2101:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   mismatched types 'const std::__cxx11::match_results<_BiIter, _Alloc>' and 'int'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:64,
                 from /usr/include/c++/10/vector:60,
                 from simurgh.h:1,
                 from simurgh.cpp:1:
/usr/include/c++/10/bits/stl_pair.h:466:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator==(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)'
  466 |     operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:466:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   mismatched types 'const std::pair<_T1, _T2>' and 'int'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/vector:60,
                 from simurgh.h:1,
                 from simurgh.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:360:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)'
  360 |     operator==(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:360:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/vector:60,
                 from simurgh.h:1,
                 from simurgh.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:398:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)'
  398 |     operator==(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:398:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/vector:60,
                 from simurgh.h:1,
                 from simurgh.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1427:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)'
 1427 |     operator==(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1427:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   mismatched types 'const std::move_iterator<_IteratorL>' and 'int'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/vector:60,
                 from simurgh.h:1,
                 from simurgh.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1495:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)'
 1495 |     operator==(const move_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1495:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   mismatched types 'const std::move_iterator<_IteratorL>' and 'int'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/vector:64,
                 from simurgh.h:1,
                 from simurgh.cpp:1:
/usr/include/c++/10/bits/allocator.h:206:5: note: candidate: 'template<class _T1, class _T2> bool std::operator==(const std::allocator<_Tp1>&, const std::allocator<_T2>&)'
  206 |     operator==(const allocator<_T1>&, const allocator<_T2>&)
      |     ^~~~~~~~
/usr/include/c++/10/bits/allocator.h:206:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   mismatched types 'const std::allocator<_Tp1>' and 'int'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/vector:67,
                 from simurgh.h:1,
                 from simurgh.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:1892:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator==(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&)'
 1892 |     operator==(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1892:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   mismatched types 'const std::vector<_Tp, _Alloc>' and 'int'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/iosfwd:40,
                 from /usr/include/c++/10/ios:38,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from simurgh.cpp:2:
/usr/include/c++/10/bits/postypes.h:222:5: note: candidate: 'template<class _StateT> bool std::operator==(const std::fpos<_StateT>&, const std::fpos<_StateT>&)'
  222 |     operator==(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/10/bits/postypes.h:222:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   mismatched types 'const std::fpos<_StateT>' and 'int'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/bits/basic_string.h:48,
                 from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from simurgh.cpp:2:
/usr/include/c++/10/string_view:490:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(std::basic_string_view<_CharT, _Traits>, std::basic_string_view<_CharT, _Traits>)'
  490 |     operator==(basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/10/string_view:490:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'int'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/bits/basic_string.h:48,
                 from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from simurgh.cpp:2:
/usr/include/c++/10/string_view:496:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(std::basic_string_view<_CharT, _Traits>, std::__type_identity_t<std::basic_string_view<_CharT, _Traits> >)'
  496 |     operator==(basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/10/string_view:496:5: note:   template argument deduction/substitution failed:
simurgh.cpp:66:84: note:   mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'int'
   66 |         if (lst.size() == n - 1 && test(tu, tv) && (count_common_roads(lst) == (lst))) {
      |                                                                                    ^
In file included from /usr/include/c++/10/bits/basic_string.h:48,
                 from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from simurgh.cpp:2:
/usr/include/c++/10/string_view:519:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool st