View Compilation Error

0_0_25621966_4588.cpp: In function 'void dijkstra()':
0_0_25621966_4588.cpp:51:58: error: invalid types 'int[int]' for array subscript
     if(dis[j]==dis[k]+map[k][j]||cost[j]>=cos[k]+cos[k][j]){
                                                          ^