eson
368447c31d
new file: LICENSE new file: README.md new file: compare/compare.go new file: for_test.go new file: heap/heap.go new file: heap/heap_test.go new file: interface.go new file: lastack/lastack.go new file: lastack/lastack_test.go new file: list/list.go new file: list/list_test.go new file: map/hashmap/hashmap.go new file: map/hashmap/hashmap_test.go new file: priority_list/iterator.go new file: priority_list/priority_list.go new file: priority_list/priority_list_test.go new file: priority_queue/iterator.go new file: priority_queue/priority_queue.go new file: priority_queue/priority_queue_test.go new file: priority_queue/vbt.go new file: priority_queue/vbt_test.go new file: priority_queuekey/iterator.go new file: priority_queuekey/priority_queuekey.go new file: priority_queuekey/priority_queuekey_test.go new file: priority_queuekey/vbt.go new file: priority_queuekey/vbt_test.go new file: set/hashset/hashset.go new file: set/hashset/hashset_test.go new file: set/treeset/treeset.go new file: set/treeset/treeset_test.go new file: sparse_array/array2/array2.go new file: sparse_array/array2/array2_test.go new file: sparse_array/array3/array3.go new file: sparse_array/array3/array3_test.go new file: sparse_array/arrayn/arrayn.go new file: sparse_array/arrayn/arrayn_test.go new file: stack/stack.go new file: stack/stack_test.go new file: tree/avl/avl.go new file: tree/avl/avl_test.go new file: tree/avl/iterator.go new file: tree/avldup/avldup.go new file: tree/avldup/avldup_test.go new file: tree/avldup/iterator.go new file: tree/avlkey/avlkey.go new file: tree/avlkey/avlkey_test.go new file: tree/avlkey/iterator.go new file: tree/avlkeydup/avlkeydup.go new file: tree/avlkeydup/avlkeydup_test.go new file: tree/avlkeydup/iterator.go new file: tree/vbt/iterator.go new file: tree/vbt/vbt.go new file: tree/vbt/vbt_test.go new file: tree/vbtkey/iterator.go new file: tree/vbtkey/vbtkey.go new file: tree/vbtkey/vbtkey_test.go
81 lines
1.3 KiB
Go
81 lines
1.3 KiB
Go
package hashset
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import (
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"fmt"
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"strings"
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)
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var nullItem = struct{}{}
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// HashSet
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type HashSet struct {
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hm map[interface{}]struct{}
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}
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// New
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func New() *HashSet {
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return &HashSet{hm: make(map[interface{}]struct{})}
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}
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// Add
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func (set *HashSet) Add(items ...interface{}) {
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for _, item := range items {
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if _, ok := set.hm[item]; !ok {
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set.hm[item] = nullItem
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}
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}
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}
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// Remove
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func (set *HashSet) Remove(items ...interface{}) {
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for _, item := range items {
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delete(set.hm, item)
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}
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}
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// Values
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func (set *HashSet) Values() []interface{} {
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values := make([]interface{}, set.Size())
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count := 0
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for item := range set.hm {
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values[count] = item
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count++
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}
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return values
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}
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// Contains
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func (set *HashSet) Contains(item interface{}) bool {
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if _, contains := set.hm[item]; contains {
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return true
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}
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return false
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}
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// Empty
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func (set *HashSet) Empty() bool {
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return set.Size() == 0
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}
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// Clear
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func (set *HashSet) Clear() {
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set.hm = make(map[interface{}]struct{})
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}
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// Size
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func (set *HashSet) Size() int {
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return len(set.hm)
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}
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// String
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func (set *HashSet) String() string {
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content := "["
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items := []string{}
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for k := range set.hm {
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items = append(items, fmt.Sprintf("%v", k))
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}
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content += strings.Join(items, ",")
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content += "]"
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return content
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}
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