answer.code: In function ‘int visit(int)’:
answer.code:7:9: error: ‘QMAX’ was not declared in this scope
    7 |         QMAX++;
      |         ^~~~
answer.code:8:9: error: ‘LAST_NODE’ was not declared in this scope
    8 |         LAST_NODE = v;
      |         ^~~~~~~~~
answer.code:9:16: error: ‘ties’ was not declared in this scope; did you mean ‘utimes’?
    9 |         return ties[v-1];
      |                ^~~~
      |                utimes
answer.code: At global scope:
answer.code:12:8: error: ‘SZ’ was not declared in this scope
   12 | int sz[SZ], deg[SZ], n, ex[SZ], vis[SZ];
      |        ^~
answer.code:12:17: error: ‘SZ’ was not declared in this scope
   12 | int sz[SZ], deg[SZ], n, ex[SZ], vis[SZ];
      |                 ^~
answer.code:12:28: error: ‘SZ’ was not declared in this scope
   12 | int sz[SZ], deg[SZ], n, ex[SZ], vis[SZ];
      |                            ^~
answer.code:12:37: error: ‘SZ’ was not declared in this scope
   12 | int sz[SZ], deg[SZ], n, ex[SZ], vis[SZ];
      |                                     ^~
answer.code:13:17: error: ‘SZ’ was not declared in this scope
   13 | vector<int> adj[SZ];
      |                 ^~
answer.code: In function ‘void dfs(int, int)’:
answer.code:17:9: error: ‘sz’ was not declared in this scope
   17 |         sz[src] = 1;
      |         ^~
answer.code:18:23: error: ‘adj’ was not declared in this scope
   18 |         for(auto it : adj[src])
      |                       ^~~
answer.code:23:17: error: ‘ex’ was not declared in this scope; did you mean ‘exp’?
   23 |                 ex[src] |= ex[it];
      |                 ^~
      |                 exp
answer.code: In function ‘std::vector<int> mark(std::vector<std::pair<int, int> >, int)’:
answer.code:32:17: error: ‘sz’ was not declared in this scope
   32 |                 sz[i] = deg[i] = ex[i] = vis[i] = 0;
      |                 ^~
answer.code:32:25: error: ‘deg’ was not declared in this scope
   32 |                 sz[i] = deg[i] = ex[i] = vis[i] = 0;
      |                         ^~~
answer.code:32:34: error: ‘ex’ was not declared in this scope; did you mean ‘e’?
   32 |                 sz[i] = deg[i] = ex[i] = vis[i] = 0;
      |                                  ^~
      |                                  e
answer.code:32:42: error: ‘vis’ was not declared in this scope
   32 |                 sz[i] = deg[i] = ex[i] = vis[i] = 0;
      |                                          ^~~
answer.code:33:17: error: ‘adj’ was not declared in this scope
   33 |                 adj[i].clear();
      |                 ^~~
answer.code:39:17: error: ‘adj’ was not declared in this scope
   39 |                 adj[u].push_back(v);
      |                 ^~~
answer.code:41:17: error: ‘deg’ was not declared in this scope
   41 |                 deg[u]++;
      |                 ^~~
answer.code:47:20: error: ‘deg’ was not declared in this scope
   47 |                 if(deg[i] == 1)
      |                    ^~~
answer.code:54:9: error: ‘ex’ was not declared in this scope; did you mean ‘e’?
   54 |         ex[safe] = 1;
      |         ^~
      |         e
answer.code:64:27: error: ‘sz’ was not declared in this scope
   64 |                 ts[i] = ((sz[i]-1 <= n-sz[i])^ex[i]);
      |                           ^~
answer.code: In function ‘void locate(std::vector<std::pair<int, int> >, int, int)’:
answer.code:73:17: error: ‘sz’ was not declared in this scope
   73 |                 sz[i] = deg[i] = ex[i] = vis[i] = 0;
      |                 ^~
answer.code:73:25: error: ‘deg’ was not declared in this scope
   73 |                 sz[i] = deg[i] = ex[i] = vis[i] = 0;
      |                         ^~~
answer.code:73:34: error: ‘ex’ was not declared in this scope; did you mean ‘e’?
   73 |                 sz[i] = deg[i] = ex[i] = vis[i] = 0;
      |                                  ^~
      |                                  e
answer.code:73:42: error: ‘vis’ was not declared in this scope
   73 |                 sz[i] = deg[i] = ex[i] = vis[i] = 0;
      |                                          ^~~
answer.code:74:17: error: ‘adj’ was not declared in this scope
   74 |                 adj[i].clear();
      |                 ^~~
answer.code:80:17: error: ‘adj’ was not declared in this scope
   80 |                 adj[u].push_back(v);
      |                 ^~~
answer.code:86:20: error: ‘deg’ was not declared in this scope
   86 |                 if(deg[i] == 1)
      |                    ^~~
answer.code:97:17: error: ‘vis’ was not declared in this scope
   97 |                 vis[cur] = true;
      |                 ^~~
answer.code:98:20: error: ‘sz’ was not declared in this scope
   98 |                 if(sz[cur]-1 == n-sz[cur])
      |                    ^~
answer.code:100:39: error: ‘adj’ was not declared in this scope
  100 |                         int x = visit(adj[cur][0]+1);
      |                                       ^~~
answer.code:122:38: error: ‘adj’ was not declared in this s...