View Compilation Error

0_0_14199124_19458.cpp: In function 'void dijkstra()':
0_0_14199124_19458.cpp:19:55: error: template argument 3 is invalid
  priority_queue< pair<int,int>,vector< pair<int,int> >,
                                                       ^
0_0_14199124_19458.cpp:19:2: error: expected unqualified-id at end of input
  priority_queue< pair<int,int>,vector< pair<int,int> >,
  ^
0_0_14199124_19458.cpp:19:2: error: expected '}' at end of input