A priority queue with a vector of priorities

General Usage
2 
julia> using DataStructures

julia> q = PriorityQueue{String, Tuple{Int,Int}}()
PriorityQueue{String,Tuple{Int64,Int64},Base.Order.ForwardOrdering} with 0 entries

julia> enqueue!(q, "a", (1, 1))
PriorityQueue{String,Tuple{Int64,Int64},Base.Order.ForwardOrdering} with 1 entry:
  "a" => (1, 1)

julia> enqueue!(q, "b", (1, 2))
PriorityQueue{String,Tuple{Int64,Int64},Base.Order.ForwardOrdering} with 2 entries:
  "b" => (1, 2)
  "a" => (1, 1)

julia> enqueue!(q, "c", (2, 1))
PriorityQueue{String,Tuple{Int64,Int64},Base.Order.ForwardOrdering} with 3 entries:
  "c" => (2, 1)
  "b" => (1, 2)
  "a" => (1, 1)
3 Likes