View Compilation Error

0_0_29824976_17734.cpp: In function 'void dijkstra()':
0_0_29824976_17734.cpp:30:56: error: 'numz' was not declared in this scope
   for (ll num = first[now.dot]; num != -1; num = nextt[numz                                                                                                                     ]) {
                                                        ^