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fix(heap): add go codes

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reanon 2023-01-13 17:40:20 +08:00
parent 3dcdd1c72d
commit ec28b4ce7a
2 changed files with 1 additions and 41 deletions
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40
codes/go/chapter_heap/heap.go
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@ -4,11 +4,6 @@
package chapter_heap package chapter_heap
import (
"container/heap"
"fmt"
)
// Go 语言中可以通过实现 heap.Interface 来构建整数大顶堆 // Go 语言中可以通过实现 heap.Interface 来构建整数大顶堆
// 实现 heap.Interface 需要同时实现 sort.Interface // 实现 heap.Interface 需要同时实现 sort.Interface
type intHeap []any type intHeap []any
@ -48,38 +43,3 @@ func (h *intHeap) Swap(i, j int) {
func (h *intHeap) Top() any { func (h *intHeap) Top() any {
return (*h)[0] return (*h)[0]
} }
/* Driver Code */
func main() {
/* 初始化堆 */
// 初始化大顶堆
maxHeap := &intHeap{}
heap.Init(maxHeap)
/* 元素入堆 */
// 调用 heap.Interface 的方法，来添加元素
heap.Push(maxHeap, 1)
heap.Push(maxHeap, 3)
heap.Push(maxHeap, 2)
heap.Push(maxHeap, 4)
heap.Push(maxHeap, 5)
/* 获取堆顶元素 */
top := maxHeap.Top()
fmt.Printf("堆顶元素为 %d\n", top)
/* 堆顶元素出堆 */
// 调用 heap.Interface 的方法，来移除元素
heap.Pop(maxHeap)
heap.Pop(maxHeap)
heap.Pop(maxHeap)
heap.Pop(maxHeap)
heap.Pop(maxHeap)
/* 获取堆大小 */
size := len(*maxHeap)
fmt.Printf("堆元素数量为 %d\n", size)
/* 判断堆是否为空 */
isEmpty := len(*maxHeap) == 0
fmt.Printf("堆是否为空 %t\n", isEmpty)
}

2
docs/chapter_heap/heap.md
View file

@ -262,7 +262,7 @@ comments: true
```go title="my_heap.go" ```go title="my_heap.go"
type maxHeap struct { type maxHeap struct {
// 使用切片而非数组，这样无需考虑扩容问题 // 使用切片而非数组，这样无需考虑扩容问题
data []any data []any
} }