Submission #768320

#	Time	Username	Problem	Language	Result	Execution time	Memory
768320		raysh07	Airline Route Map (JOI18_airline)	C++17	Compilation error	0 ms	0 KiB

Alice

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

void Alice( int N, int M, int A[], int B[] ){
// 	InitG( 3, 2 );
// 	MakeG( 1, 2 );
// 	MakeG( 1, 3 );

    int n = N + 12;

    vector <pair<int, int>> e;
    for (int i = 0; i < M; i++){
        e.push_back({A[i], B[i]});
    }
    
    for (int i = 0; i < n - 1; i++){
        if (i != N) e.push_back({i, N});
    }
    
    for (int i = N + 1; i <= N + 10; i++) e.push_back({i, n - 1});
    
    for (int i = N + 2; i <= N + 9; i++) e.push_back({i, N + 10});
    
    for (int i = N = 2; i <= N + 9; i++) e.push_back({i, i - 1});
    
    InitG(n, (int)e.size());
    int curr = 0;
    for (auto [x, y] : e) makeG(curr++, x, y);
}

Bob

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

void Bob(int V, int U, int C[], int D[]){
// 	InitMap( 3, 2 );
// 	MakeMap( 1, 2 );
// 	MakeMap( 1, 3 );

    int n = V- 12;
    vector<vector<bool>> has(V, vector<bool>(V, false));
    vector<int> deg(V, 0);
    
    for (int i = 0; i < U; i++){
        has[C[i]][D[i]] = true;
        has[D[i]][C[i]] = true;
        deg[C[i]]++;
        deg[V[i]]++;
    }
    
    pair<int, int> mx = {-1, -1};
    for (int i = 0; i < V; i++){
        mx = max(mx, {deg[i], i});
    }
    
    vector<pair<int, int>> e;
    set<int> bruh;
    
    int orz = -1;
    for (int i = 0; i < V; i++){
        if (i != mx.second && !has[i][mx.second]){
            assert(orz == -1);
            orz = i;
        }
    }
    
    for (int i = 0; i < V; i++){
        if (has[orz][i]){
            bruh.insert(i);
        }
    }
    
    assert(bruh.size() == 10);
    vector <int> okie(V, 0);
    for (int i = 0; i < V; i++){
        for (int j = i + 1; j < V; j++){
            if (bruh.find(i) && bruh.find(j) && has[i][j]){
                okie[i]++;
                okie[j]++;
            } 
        }
    }
    
    vector <int> fin(10, -1);
    vector <bool> used(v, false);
    used[orz] = true;
    used[mx.second] = true;
    for (int i = 0; i < V; i++){
        if (okie[i] == 8) fin[9] = i;
        if (okie[i] == 1) fin[0] = i;
    }
    
    int curr = fin[0];
    used[fin[0]] = true;
    used[fin[9]] = true;
    int ptr = 1;
    while (true){
        int nc = -1;
        for (int i = 0; i < V; i++){
            if (bruh.find(i) && has[curr][i] && !used[i]){
                nc = i;
                break;
            }
        }
        
        if (nc == -1) break;
        used[nc] = true;
        fin[ptr++] = nc;
        curr = nc;
    }
    vector <int> ac(V, 0);
    
    for (int i = 0; i < V; i++){
        if (used[i]) continue;
        
        for (int j = 0; j < 10; j++){
            if (has[i][fin[j]]){
                ac[i] += (1 << j);
            }
        }
    }
    
    for (int i = 0; i < V; i++){
        for (int j = i + 1; j < V; j++){
            if (!used[i] && !used[j] && has[i][j]){
                e.push_back({i, j});
            }
        }
    }
    
    InitMap(n, (int)e.size());
    for (auto [x, y] : e) MakeMap(x, y);
}

Compilation message (stderr)

Alice.cpp: In function 'void Alice(int, int, int*, int*)':
Alice.cpp:29:27: error: 'makeG' was not declared in this scope; did you mean 'MakeG'?
   29 |     for (auto [x, y] : e) makeG(curr++, x, y);
      |                           ^~~~~
      |                           MakeG

Bob.cpp: In function 'void Bob(int, int, int*, int*)':
Bob.cpp:18:14: error: invalid types 'int[int]' for array subscript
   18 |         deg[V[i]]++;
      |              ^
Bob.cpp:47:30: error: no match for 'operator&&' (operand types are 'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'} and 'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'})
   47 |             if (bruh.find(i) && bruh.find(j) && has[i][j]){
      |                 ~~~~~~~~~~~~ ^~ ~~~~~~~~~~~~
      |                          |               |
      |                          |               _Rb_tree_const_iterator<[...]>
      |                          _Rb_tree_const_iterator<[...]>
Bob.cpp:47:30: note: candidate: 'operator&&(bool, bool)' (built-in)
   47 |             if (bruh.find(i) && bruh.find(j) && has[i][j]){
      |                 ~~~~~~~~~~~~~^~~~~~~~~~~~~~~
Bob.cpp:47:30: note:   no known conversion for argument 2 from 'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'} to 'bool'
In file included from /usr/include/c++/10/valarray:603,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from Bob.cpp:2:
/usr/include/c++/10/bits/valarray_after.h:415:5: note: candidate: 'template<class _Dom1, class _Dom2> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__logical_and, typename _Dom1::value_type>::result_type> std::operator&&(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)'
  415 |     _DEFINE_EXPR_BINARY_OPERATOR(&&, __logical_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/valarray_after.h:415:5: note:   template argument deduction/substitution failed:
Bob.cpp:47:44: note:   'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   47 |             if (bruh.find(i) && bruh.find(j) && has[i][j]){
      |                                            ^
In file included from /usr/include/c++/10/valarray:603,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from Bob.cpp:2:
/usr/include/c++/10/bits/valarray_after.h:415:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__logical_and, typename _Dom1::value_type>::result_type> std::operator&&(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)'
  415 |     _DEFINE_EXPR_BINARY_OPERATOR(&&, __logical_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/valarray_after.h:415:5: note:   template argument deduction/substitution failed:
Bob.cpp:47:44: note:   'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   47 |             if (bruh.find(i) && bruh.find(j) && has[i][j]){
      |                                            ^
In file included from /usr/include/c++/10/valarray:603,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from Bob.cpp:2:
/usr/include/c++/10/bits/valarray_after.h:415:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__logical_and, typename _Dom1::value_type>::result_type> std::operator&&(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)'
  415 |     _DEFINE_EXPR_BINARY_OPERATOR(&&, __logical_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/valarray_after.h:415:5: note:   template argument deduction/substitution failed:
Bob.cpp:47:44: note:   'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   47 |             if (bruh.find(i) && bruh.find(j) && has[i][j]){
      |                                            ^
In file included from /usr/include/c++/10/valarray:603,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from Bob.cpp:2:
/usr/include/c++/10/bits/valarray_after.h:415:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__logical_and, typename _Dom1::value_type>::result_type> std::operator&&(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray<typename _Dom::value_type>&)'
  415 |     _DEFINE_EXPR_BINARY_OPERATOR(&&, __logical_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/valarray_after.h:415:5: note:   template argument deduction/substitution failed:
Bob.cpp:47:44: note:   'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   47 |             if (bruh.find(i) && bruh.find(j) && has[i][j]){
      |                                            ^
In file included from /usr/include/c++/10/valarray:603,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from Bob.cpp:2:
/usr/include/c++/10/bits/valarray_after.h:415:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__logical_and, typename _Dom1::value_type>::result_type> std::operator&&(const std::valarray<typename _Dom::value_type>&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)'
  415 |     _DEFINE_EXPR_BINARY_OPERATOR(&&, __logical_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/valarray_after.h:415:5: note:   template argument deduction/substitution failed:
Bob.cpp:47:44: note:   'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   47 |             if (bruh.find(i) && bruh.find(j) && has[i][j]){
      |                                            ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from Bob.cpp:2:
/usr/include/c++/10/valarray:1195:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__logical_and, _Tp>::result_type> std::operator&&(const std::valarray<_Tp>&, const std::valarray<_Tp>&)'
 1195 | _DEFINE_BINARY_OPERATOR(&&, __logical_and)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/valarray:1195:1: note:   template argument deduction/substitution failed:
Bob.cpp:47:44: note:   'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'} is not derived from 'const std::valarray<_Tp>'
   47 |             if (bruh.find(i) && bruh.find(j) && has[i][j]){
      |                                            ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from Bob.cpp:2:
/usr/include/c++/10/valarray:1195:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__logical_and, _Tp>::result_type> std::operator&&(const std::valarray<_Tp>&, const typename std::valarray<_Tp>::value_type&)'
 1195 | _DEFINE_BINARY_OPERATOR(&&, __logical_and)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/valarray:1195:1: note:   template argument deduction/substitution failed:
Bob.cpp:47:44: note:   'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'} is not derived from 'const std::valarray<_Tp>'
   47 |             if (bruh.find(i) && bruh.find(j) && has[i][j]){
      |                                            ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from Bob.cpp:2:
/usr/include/c++/10/valarray:1195:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__logical_and, _Tp>::result_type> std::operator&&(const typename std::valarray<_Tp>::value_type&, const std::valarray<_Tp>&)'
 1195 | _DEFINE_BINARY_OPERATOR(&&, __logical_and)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/valarray:1195:1: note:   template argument deduction/substitution failed:
Bob.cpp:47:44: note:   'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'} is not derived from 'const std::valarray<_Tp>'
   47 |             if (bruh.find(i) && bruh.find(j) && has[i][j]){
      |                                            ^
Bob.cpp:55:24: error: 'v' was not declared in this scope
   55 |     vector <bool> used(v, false);
      |                        ^
Bob.cpp:70:30: error: no match for 'operator&&' (operand types are 'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'} and 'std::vector<bool>::reference')
   70 |             if (bruh.find(i) && has[curr][i] && !used[i]){
      |                 ~~~~~~~~~~~~ ^~ ~~~~~~~~~~~~
      |                          |                 |
      |                          |                 std::vector<bool>::reference
      |                          std::set<int>::iterator {aka std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator}
Bob.cpp:70:30: note: candidate: 'operator&&(bool, bool)' (built-in)
   70 |             if (bruh.find(i) && has[curr][i] && !used[i]){
      |                 ~~~~~~~~~~~~~^~~~~~~~~~~~~~~
Bob.cpp:70:30: note:   no known conversion for argument 1 from 'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'} to 'bool'
In file included from /usr/include/c++/10/valarray:603,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from Bob.cpp:2:
/usr/include/c++/10/bits/valarray_after.h:415:5: note: candidate: 'template<class _Dom1, class _Dom2> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__logical_and, typename _Dom1::value_type>::result_type> std::operator&&(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)'
  415 |     _DEFINE_EXPR_BINARY_OPERATOR(&&, __logical_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/valarray_after.h:415:5: note:   template argument deduction/substitution failed:
Bob.cpp:70:44: note:   'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   70 |             if (bruh.find(i) && has[curr][i] && !used[i]){
      |                                            ^
In file included from /usr/include/c++/10/valarray:603,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from Bob.cpp:2:
/usr/include/c++/10/bits/valarray_after.h:415:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__logical_and, typename _Dom1::value_type>::result_type> std::operator&&(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)'
  415 |     _DEFINE_EXPR_BINARY_OPERATOR(&&, __logical_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/valarray_after.h:415:5: note:   template argument deduction/substitution failed:
Bob.cpp:70:44: note:   'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   70 |             if (bruh.find(i) && has[curr][i] && !used[i]){
      |                                            ^
In file included from /usr/include/c++/10/valarray:603,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from Bob.cpp:2:
/usr/include/c++/10/bits/valarray_after.h:415:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__logical_and, typename _Dom1::value_type>::result_type> std::operator&&(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)'
  415 |     _DEFINE_EXPR_BINARY_OPERATOR(&&, __logical_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/valarray_after.h:415:5: note:   template argument deduction/substitution failed:
Bob.cpp:70:44: note:   'std::vector<bool>::reference' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   70 |             if (bruh.find(i) && has[curr][i] && !used[i]){
      |                                            ^
In file included from /usr/include/c++/10/valarray:603,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from Bob.cpp:2:
/usr/include/c++/10/bits/valarray_after.h:415:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__logical_and, typename _Dom1::value_type>::result_type> std::operator&&(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray<typename _Dom::value_type>&)'
  415 |     _DEFINE_EXPR_BINARY_OPERATOR(&&, __logical_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/valarray_after.h:415:5: note:   template argument deduction/substitution failed:
Bob.cpp:70:44: note:   'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   70 |             if (bruh.find(i) && has[curr][i] && !used[i]){
      |                                            ^
In file included from /usr/include/c++/10/valarray:603,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from Bob.cpp:2:
/usr/include/c++/10/bits/valarray_after.h:415:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__logical_and, typename _Dom1::value_type>::result_type> std::operator&&(const std::valarray<typename _Dom::value_type>&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)'
  415 |     _DEFINE_EXPR_BINARY_OPERATOR(&&, __logical_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/valarray_after.h:415:5: note:   template argument deduction/substitution failed:
Bob.cpp:70:44: note:   'std::vector<bool>::reference' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   70 |             if (bruh.find(i) && has[curr][i] && !used[i]){
      |                                            ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from Bob.cpp:2:
/usr/include/c++/10/valarray:1195:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__logical_and, _Tp>::result_type> std::operator&&(const std::valarray<_Tp>&, const std::valarray<_Tp>&)'
 1195 | _DEFINE_BINARY_OPERATOR(&&, __logical_and)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/valarray:1195:1: note:   template argument deduction/substitution failed:
Bob.cpp:70:44: note:   'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'} is not derived from 'const std::valarray<_Tp>'
   70 |             if (bruh.find(i) && has[curr][i] && !used[i]){
      |                                            ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from Bob.cpp:2:
/usr/include/c++/10/valarray:1195:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__logical_and, _Tp>::result_type> std::operator&&(const std::valarray<_Tp>&, const typename std::valarray<_Tp>::value_type&)'
 1195 | _DEFINE_BINARY_OPERATOR(&&, __logical_and)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/valarray:1195:1: note:   template argument deduction/substitution failed:
Bob.cpp:70:44: note:   'std::set<int>::iterator' {aka 'std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>, std::allocator<int> >::const_iterator'} is not derived from 'const std::valarray<_Tp>'
   70 |             if (bruh.find(i) && has[curr][i] && !used[i]){
      |                                            ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from Bob.cpp:2:
/usr/include/c++/10/valarray:1195:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__logical_and, _Tp>::result_type> std::operator&&(const typename std::valarray<_Tp>::value_type&, const std::valarray<_Tp>&)'
 1195 | _DEFINE_BINARY_OPERATOR(&&, __logical_and)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/valarray:1195:1: note:   template argument deduction/substitution failed:
/var/