Eroare de compilare: user.cpp: In function ‘void dfs(int, int)’: user.cpp:8:25: error: ‘sz’ was not declared in this scope int maxim = 0, pos; sz[x] = 1; lev[x] = lev[f] + 1; ^ user.cpp:8:36: error: ‘lev’ was not declared in this scope int maxim = 0, pos; sz[x] = 1; lev[x] = lev[f] + 1; ^ user.cpp:9:19: error: ‘g’ was not declared in this scope for( auto y : g[x] ) { ^ user.cpp:16:9: error: ‘pth’ was not declared in this scope pth.push_back( vector<int>(0) ); ^ user.cpp:17:9: error: ‘whp’ was not declared in this scope whp[x] = pth.size() - 1; pth[ whp[x] ].push_back( x ); } ^ user.cpp:19:9: error: ‘pth’ was not declared in this scope pth[ whp[pos] ].push_back( x ); ^ user.cpp:19:14: error: ‘whp’ was not declared in this scope pth[ whp[pos] ].push_back( x ); ^ user.cpp:21:19: error: ‘g’ was not declared in this scope for( auto y : g[x] ) { ^ user.cpp:24:9: error: ‘ftp’ was not declared in this scope ftp[ whp[y] ] = x; } ^ user.cpp:24:14: error: ‘whp’ was not declared in this scope ftp[ whp[y] ] = x; } ^ user.cpp: In function ‘int upd(std::vector<std::pair<int, int> >&, int, int, int, int, int, int)’: user.cpp:28:24: error: ‘updl’ was not declared in this scope updl( sgt, n, l, r ); ^ user.cpp:32:51: error: return-statement with no value, in function returning ‘int’ [-fpermissive] sgt[n].second += x; updl( sgt, n, l, r ); return; } ^ user.cpp:36:29: error: return-statement with no value, in function returning ‘int’ [-fpermissive] sgt[n].first = s1 + s2; return; } ^ user.cpp: In function ‘int qry(std::vector<std::pair<int, int> >&, int, int, int, int, int)’: user.cpp:39:24: error: ‘updl’ was not declared in this scope updl( sgt, n, l, r ); ^ user.cpp: In function ‘void update(int, int, int)’: user.cpp:50:9: error: ‘lev’ was not declared in this scope if( lev[ ftp[ whp[x] ] ] > lev[ ftp[ whp[y] ] ] ) { ^ user.cpp:50:14: error: ‘ftp’ was not declared in this scope