View Compilation Error

0_0_19878309_15438.cpp: In function 'void dijkstra()':
0_0_19878309_15438.cpp:20:17: error: 'w' was not declared in this scope
   int tmp = INF;w
                 ^
0_0_19878309_15438.cpp:25:15: error: 'k' was not declared in this scope
     tmp = dis[k = j];
               ^
0_0_19878309_15438.cpp:27:7: error: 'k' was not declared in this scope
   vis[k] = 1;
       ^