View Compilation Error

0_0_33661710_30548.cpp: In function 'void dijkstra(int)':
0_0_33661710_30548.cpp:47:19: error: no match for 'operator[]' (operand types are 'bool [400010]' and 'std::pair<int, int>')
             if(!mk[u] && dist[node] > dist[v] + xxx + len)
                   ^