answer.code: In function ‘void solve(long long int, long long int, long long int, long long int)’:
answer.code:29:40: warning: extended initializer lists only available with ‘-std=c++11’ or ‘-std=gnu++11’ [-Wc++11-extensions]
   29 |                         s[u].push_back({{v, a}, {b, t}});
      |                                        ^
answer.code:29:39: warning: extended initializer lists only available with ‘-std=c++11’ or ‘-std=gnu++11’ [-Wc++11-extensions]
   29 |                         s[u].push_back({{v, a}, {b, t}});
      |                         ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
answer.code:29:39: warning: extended initializer lists only available with ‘-std=c++11’ or ‘-std=gnu++11’ [-Wc++11-extensions]
answer.code:29:39: warning: extended initializer lists only available with ‘-std=c++11’ or ‘-std=gnu++11’ [-Wc++11-extensions]
answer.code:34:16: warning: extended initializer lists only available with ‘-std=c++11’ or ‘-std=gnu++11’ [-Wc++11-extensions]
   34 |         q.push({0, S, 0});
      |                ^
answer.code:34:15: warning: extended initializer lists only available with ‘-std=c++11’ or ‘-std=gnu++11’ [-Wc++11-extensions]
   34 |         q.push({0, S, 0});
      |         ~~~~~~^~~~~~~~~~~
answer.code:35:28: error: ‘>>’ should be ‘> >’ within a nested template argument list
   35 |         vector <vector <int>> dist(n + 1, vector <int>(n + 1, 0x3f3f3f3f3f3f3f3f));
      |                            ^~
      |                            > >
answer.code:48:27: warning: structured bindings only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
   48 |                 for (auto [i, j] : s[now.pos])
      |                           ^
answer.code:48:27: error: ISO C++ forbids declaration of ‘structured binding’ with no type [-fpermissive]
   48 |                 for (auto [i, j] : s[now.pos])
      |                           ^~~~~~
answer.code:48:27: error: structured binding declaration cannot be C++98 ‘auto’
answer.code:48:27: error: structured binding declaration cannot have type ‘int’
answer.code:48:27: note: type must be cv-qualified ‘auto’ or reference to cv-qualified ‘auto’
answer.code:48:36: warning: range-based ‘for’ loops only available with ‘-std=c++11’ or ‘-std=gnu++11’ [-Wc++11-extensions]
   48 |                 for (auto [i, j] : s[now.pos])
      |                                    ^
answer.code:48:45: error: forming reference to reference type ‘std::vector<std::pair<std::pair<long long int, long long int>, std::pair<long long int, long long int> > >&’
   48 |                 for (auto [i, j] : s[now.pos])
      |                                             ^
answer.code:58:48: warning: extended initializer lists only available with ‘-std=c++11’ or ‘-std=gnu++11’ [-Wc++11-extensions]
   58 |                                         q.push({dist[i.first][now.pos], i.first, now.pos});
      |                                                ^
answer.code:58:47: warning: extended initializer lists only available with ‘-std=c++11’ or ‘-std=gnu++11’ [-Wc++11-extensions]
   58 |                                         q.push({dist[i.first][now.pos], i.first, now.pos});
      |                                         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
answer.code:58:47: error: cannot convert ‘<brace-enclosed initializer list>’ to ‘const std::priority_queue<node>::value_type&’ {aka ‘const node&’}
In file included from /usr/include/c++/13/queue:66,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:157,
                 from answer.code:1:
/usr/include/c++/13/bits/stl_queue.h:738:30: note:   initializing argument 1 of ‘void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = node; _Sequence = std::vector<node, std::allocator<node> >; _Compare = std::less<node>; value_type = node]’
  738 |       push(const value_type& __x)
      |            ~~~~~~~~~~~~~~~~~~^~~
answer.code:67:48: warning: extended initializer lists only available with ‘-std=c++11’ or ‘-std=gnu++11’ [-Wc++11-extensions]
   67 |                                         q.push({xx, i.first, now.pos});
      |                                                ^
answer.code:67:47: warning: extended initializer lists only available with ‘-std=c++11’ or ‘-std=gnu++11’ [-Wc++11-extensions]
   67 |                                         q.push({xx, i.first, now.pos});
      |                                         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
answer.code:67:47: error: cannot convert ‘<brace-enclosed initializer list>’ to ‘const std::priority_queue<node>::value_type&’ {aka ‘const node&’}
/usr/include/c++/13/bits/stl_queue.h:738:30: note:   initializing argument 1 of ‘void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = node; _Sequence = std::vector<node, std::allocator<node> >; _Compare = std::less<node>; value_type = node]’
  738 |       push(const value_type& __x)
      |            ~~~~~~~~~~~~~~~~~~...