Merge pull request #96 from Slone123c/patch
Hashing search and test using go
This commit is contained in:
commit
a5b473f718
29
codes/go/chapter_searching/hashing_search.go
Normal file
29
codes/go/chapter_searching/hashing_search.go
Normal file
@ -0,0 +1,29 @@
|
||||
// File: binary_search.go
|
||||
// Created Time: 2022-12-12
|
||||
// Author: Slone123c (274325721@qq.com)
|
||||
|
||||
package chapter_searching
|
||||
|
||||
import . "github.com/krahets/hello-algo/pkg"
|
||||
|
||||
/* 哈希查找(数组) */
|
||||
func hashingSearch(m map[int]int, target int) int {
|
||||
// 哈希表的 key: 目标元素,value: 索引
|
||||
// 若哈希表中无此 key ,返回 -1
|
||||
if index, ok := m[target]; ok {
|
||||
return index
|
||||
} else {
|
||||
return -1
|
||||
}
|
||||
}
|
||||
|
||||
/* 哈希查找(链表) */
|
||||
func hashingSearch1(m map[int]*ListNode, target int) *ListNode {
|
||||
// 哈希表的 key: 目标结点值,value: 结点对象
|
||||
// 若哈希表中无此 key ,返回 nil
|
||||
if node, ok := m[target]; ok {
|
||||
return node
|
||||
} else {
|
||||
return nil
|
||||
}
|
||||
}
|
35
codes/go/chapter_searching/hashing_search_test.go
Normal file
35
codes/go/chapter_searching/hashing_search_test.go
Normal file
@ -0,0 +1,35 @@
|
||||
// File: binary_search.go
|
||||
// Created Time: 2022-12-12
|
||||
// Author: Slone123c (274325721@qq.com)
|
||||
|
||||
package chapter_searching
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
. "github.com/krahets/hello-algo/pkg"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestHashingSearch(t *testing.T) {
|
||||
target := 3
|
||||
/* 哈希查找(数组) */
|
||||
nums := []int{1, 5, 3, 2, 4, 7, 5, 9, 10, 8}
|
||||
// 初始化哈希表
|
||||
m := make(map[int]int)
|
||||
for i := 0; i < len(nums); i++ {
|
||||
m[nums[i]] = i
|
||||
}
|
||||
index := hashingSearch(m, target)
|
||||
fmt.Println("目标元素 3 的索引 = ", index)
|
||||
|
||||
/* 哈希查找(链表) */
|
||||
head := ArrayToLinkedList(nums)
|
||||
// 初始化哈希表
|
||||
m1 := make(map[int]*ListNode)
|
||||
for head != nil {
|
||||
m1[head.Val] = head
|
||||
head = head.Next
|
||||
}
|
||||
node := hashingSearch1(m1, target)
|
||||
fmt.Println("目标结点值 3 的对应结点对象为 ", node)
|
||||
}
|
@ -53,7 +53,16 @@ comments: true
|
||||
=== "Go"
|
||||
|
||||
```go title="hashing_search.go"
|
||||
|
||||
/* 哈希查找(数组) */
|
||||
func hashingSearch(m map[int]int, target int) int {
|
||||
// 哈希表的 key: 目标元素,value: 索引
|
||||
// 若哈希表中无此 key ,返回 -1
|
||||
if index, ok := m[target]; ok {
|
||||
return index
|
||||
} else {
|
||||
return -1
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
=== "JavaScript"
|
||||
@ -121,7 +130,16 @@ comments: true
|
||||
=== "Go"
|
||||
|
||||
```go title="hashing_search.go"
|
||||
|
||||
/* 哈希查找(链表) */
|
||||
func hashingSearch1(m map[int]*ListNode, target int) *ListNode {
|
||||
// 哈希表的 key: 目标结点值,value: 结点对象
|
||||
// 若哈希表中无此 key ,返回 nil
|
||||
if node, ok := m[target]; ok {
|
||||
return node
|
||||
} else {
|
||||
return nil
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
=== "JavaScript"
|
||||
|
Loading…
Reference in New Issue
Block a user