keys.cpp: In function 'std::vector<int> find_reachable(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
keys.cpp:12:13: error: expected ';' before '{' token
12 | lock{u[i], v[i]} = c[i];
| ^
| ;
keys.cpp:12:9: warning: statement has no effect [-Wunused-value]
12 | lock{u[i], v[i]} = c[i];
| ^~~~
keys.cpp:12:26: error: expected primary-expression before '=' token
12 | lock{u[i], v[i]} = c[i];
| ^
keys.cpp:13:13: error: expected ';' before '{' token
13 | lock{v[i], u[i]} = c[i];
| ^
| ;
keys.cpp:13:9: warning: statement has no effect [-Wunused-value]
13 | lock{v[i], u[i]} = c[i];
| ^~~~
keys.cpp:13:26: error: expected primary-expression before '=' token
13 | lock{v[i], u[i]} = c[i];
| ^
keys.cpp:17:31: error: expected ';' before 'visited'
17 | vector<bool>(n, false) visited;
| ^~~~~~~~
| ;
keys.cpp:25:17: error: 'visited' was not declared in this scope
25 | if (visited[h.first]){
| ^~~~~~~
keys.cpp:31:13: error: 'visited' was not declared in this scope
31 | visited[h.first] = true;
| ^~~~~~~
keys.cpp:35:39: error: no match for 'operator[]' (operand types are 'std::map<std::pair<int, int>, int>' and 'int')
35 | if (obtained.find(lock[h.first][k]) != obtained.end()){
| ^
In file included from /usr/include/c++/10/map:61,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:81,
from keys.cpp:1:
/usr/include/c++/10/bits/stl_map.h:492:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](const key_type&) [with _Key = std::pair<int, int>; _Tp = int; _Compare = std::less<std::pair<int, int> >; _Alloc = std::allocator<std::pair<const std::pair<int, int>, int> >; std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type = int; std::map<_Key, _Tp, _Compare, _Alloc>::key_type = std::pair<int, int>]'
492 | operator[](const key_type& __k)
| ^~~~~~~~
/usr/include/c++/10/bits/stl_map.h:492:34: note: no known conversion for argument 1 from 'int' to 'const key_type&' {aka 'const std::pair<int, int>&'}
492 | operator[](const key_type& __k)
| ~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_map.h:512:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](std::map<_Key, _Tp, _Compare, _Alloc>::key_type&&) [with _Key = std::pair<int, int>; _Tp = int; _Compare = std::less<std::pair<int, int> >; _Alloc = std::allocator<std::pair<const std::pair<int, int>, int> >; std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type = int; std::map<_Key, _Tp, _Compare, _Alloc>::key_type = std::pair<int, int>]'
512 | operator[](key_type&& __k)
| ^~~~~~~~
/usr/include/c++/10/bits/stl_map.h:512:29: note: no known conversion for argument 1 from 'int' to 'std::map<std::pair<int, int>, int>::key_type&&' {aka 'std::pair<int, int>&&'}
512 | operator[](key_type&& __k)
| ~~~~~~~~~~~^~~
keys.cpp:36:43: error: no match for 'operator[]' (operand types are 'std::map<std::pair<int, int>, int>' and 'int')
36 | dq.push_front({k, lock[h.first][k]});
| ^
In file included from /usr/include/c++/10/map:61,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:81,
from keys.cpp:1:
/usr/include/c++/10/bits/stl_map.h:492:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](const key_type&) [with _Key = std::pair<int, int>; _Tp = int; _Compare = std::less<std::pair<int, int> >; _Alloc = std::allocator<std::pair<const std::pair<int, int>, int> >; std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type = int; std::map<_Key, _Tp, _Compare, _Alloc>::key_type = std::pair<int, int>]'
492 | operator[](const key_type& __k)
| ^~~~~~~~
/usr/include/c++/10/bits/stl_map.h:492:34: note: no known conversion for argument 1 from 'int' to 'const key_type&' {aka 'const std::pair<int, int>&'}
492 | operator[](const key_type& __k)
| ~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_map.h:512:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](std::map<_Key, _Tp, _Compare, _Alloc>::key_type&&) [with _Key = std::pair<int, int>; _Tp = int; _Compare = std::less<std::pair<int, int> >; _Alloc = std::allocator<std::pair<const std::pair<int, int>, int> >; std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type = int; std::map<_Key, _Tp, _Compare, _Alloc>::key_type = std::pair<int, int>]'
512 | operator[](key_type&& __k)
| ^~~~~~~~
/usr/include/c++/10/bits/stl_map.h:512:29: note: no known conversion for argument 1 from 'int' to 'std::map<std::pair<int, int>, int>::key_type&&' {aka 'std::pair<int, int>&&'}
512 | operator[](key_type&& __k)
| ~~~~~~~~~~~^~~
keys.cpp:36:56: error: no matching function for call to 'std::deque<std::pair<int, int> >::push_front(<brace-enclosed initializer list>)'
36 | dq.push_front({k, lock[h.first][k]});
| ^
In file included from /usr/include/c++/10/deque:67,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:68,
from keys.cpp:1:
/usr/include/c++/10/bits/stl_deque.h:1456:7: note: candidate: 'void std::deque<_Tp, _Alloc>::push_front(const value_type&) [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >; std::deque<_Tp, _Alloc>::value_type = std::pair<int, int>]'
1456 | push_front(const value_type& __x)
| ^~~~~~~~~~
/usr/include/c++/10/bits/stl_deque.h:1456:36: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const std::pair<int, int>&'}
1456 | push_front(const value_type& __x)
| ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_deque.h:1471:7: note: candidate: 'void std::deque<_Tp, _Alloc>::push_front(std::deque<_Tp, _Alloc>::value_type&&) [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >; std::deque<_Tp, _Alloc>::value_type = std::pair<int, int>]'
1471 | push_front(value_type&& __x)
| ^~~~~~~~~~
/usr/include/c++/10/bits/stl_deque.h:1471:31: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::deque<std::pair<int, int> >::value_type&&' {aka 'std::pair<int, int>&&'}
1471 | push_front(value_type&& __x)
| ~~~~~~~~~~~~~^~~
keys.cpp:39:42: error: no match for 'operator[]' (operand types are 'std::map<std::pair<int, int>, int>' and 'int')
39 | dq.push_back({k, lock[h.first][k]});
| ^
In file included from /usr/include/c++/10/map:61,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:81,
from keys.cpp:1:
/usr/include/c++/10/bits/stl_map.h:492:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](const key_type&) [with _Key = std::pair<int, int>; _Tp = int; _Compare = std::less<std::pair<int, int> >; _Alloc = std::allocator<std::pair<const std::pair<int, int>, int> >; std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type = int; std::map<_Key, _Tp, _Compare, _Alloc>::key_type = std::pair<int, int>]'
492 | operator[](const key_type& __k)
| ^~~~~~~~
/usr/include/c++/10/bits/stl_map.h:492:34: note: no known conversion for argument 1 from 'int' to 'const key_type&' {aka 'const std::pair<int, int>&'}
492 | operator[](const key_type& __k)
| ~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_map.h:512:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](std::map<_Key, _Tp, _Compare, _Alloc>::key_type&&) [with _Key = std::pair<int, int>; _Tp = int; _Compare = std::less<std::pair<int, int> >; _Alloc = std::allocator<std::pair<const std::pair<int, int>, int> >; std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type = int; std::map<_Key, _Tp, _Compare, _Alloc>::key_type = std::pair<int, int>]'
512 | operator[](key_type&& __k)
| ^~~~~~~~
/usr/include/c++/10/bits/stl_map.h:512:29: note: no known conversion for argument 1 from 'int' to 'std::map<std::pair<int, int>, int>::key_type&&' {aka 'std::pair<int, int>&&'}
512 | operator[](key_type&& __k)
| ~~~~~~~~~~~^~~
keys.cpp:39:55: error: no matching function for call to 'std::deque<std::pair<int, int> >::push_back(<brace-enclosed initializer list>)'
39 | dq.push_back({k, lock[h.first][k]});
| ^
In file included from /usr/include/c++/10/deque:67,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:68,
from keys.cpp:1:
/usr/include/c++/10/bits/stl_deque.h:1493:7: note: candidate: 'void std::deque<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >; std::deque<_Tp, _Alloc>::value_type = std::pair<int, int>]'
1493 | push_back(const value_type& __x)
| ^~~~~~~~~
/usr/include/c++/10/bits/stl_deque.h:1493:35: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const std::pair<int, int>&'}
1493 | push_back(const value_type& __x)
| ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_deque.h:1508:7: note: candidate: 'void std::deque<_Tp, _Alloc>::push_back(std::deque<_Tp, _Alloc>::value_type&&) [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >; std::deque<_Tp, _Alloc>::value_type = std::pair<int, int>]'
1508 | push_back(value_type&& __x)
| ^~~~~~~~~
/usr/include/c++/10/bits/stl_deque.h:1508:30: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::deque<std::pair<int, int> >::value_type&&' {aka 'std::pair<int, int>&&'}
1508 | push_back(value_type&& __x)
| ~~~~~~~~~~~~~^~~