xxxcat

// this package is mostly copy-pasted from golang's std container/heap
// I changed Interface, Pop and Push in order to get rid of type assertions
// usage can be found in test file, benchmarks show that we can get about 27% of speedup for 1000 elems, or 10% for 10M elems (tested on go1.4)
package gheap

type Interface interface {
	Len() int
	Less(i, j int) bool
	Swap(i, j int)
}