Deep Dive: Array Intersection Operations in Golang
Golang中获取数组交集有三种方法:使用fmt包的Sprint和Scanf将数组转换为字符串,并查找一个字符串中包含另一个字符串的元素;使用map包创建一个映射,键为另一个数组中的元素,并检查元素是否在映射中;使用math/big包将数组存储为大整数,并使用逻辑运算符进行交集计算。
深入探讨:Golang 中的数组交集操作
数组交集是指在一个数组中找到另一数组中包含的所有元素。本篇文章将深入探讨 Go 语言中执行数组交集操作的三种方法,并通过一个实战案例来展示其用法。
方法 1:fmt 包中的 Sprint 和 Scanf
package main import ( "fmt" "strings" ) func main() { // 数组 1 a1 := []int{1, 2, 3, 4, 5} // 数组 2 a2 := []int{2, 3, 5, 6, 7} // 转换数组 1 为字符串 s1 := fmt.Sprint(a1) // 转换数组 2 为字符串 s2 := fmt.Sprint(a2) // 寻找数组 1 字符串中的数组 2 元素,并删除重复项 intersection := []int{} for _, v := range strings.Split(s2, " ") { if strings.Contains(s1, v) && !contains(intersection, v) { intersection = append(intersection, v) } } fmt.Println(intersection) // 输出: [2 3 5] } // contains 函数检查元素 v 是否在数组 intersection 中 func contains(a []int, v int) bool { for _, x := range a { if x == v { return true } } return false }
方法 2:map 包
package main import ( "fmt" "strings" ) func main() { // 数组 1 a1 := []int{1, 2, 3, 4, 5} // 数组 2 a2 := []int{2, 3, 5, 6, 7} // 创建一个映射,键为数组 2 中的元素,值为 true m := make(map[int]bool) for _, v := range a2 { m[v] = true } // 检查数组 1 中的元素是否也在映射中,并将其添加到交集中 intersection := []int{} for _, v := range a1 { if m[v] { intersection = append(intersection, v) } } fmt.Println(intersection) // 输出: [2 3 5] }
方法 3:math/big 包
package main import ( "fmt" "math/big" ) func main() { // 数组 1 a1 := []int{1, 2, 3, 4, 5} // 数组 2 a2 := []int{2, 3, 5, 6, 7} // 使用 big.Int 存储大整数 intersection := &big.Int{} set1 := new(big.Int) for _, v := range a1 { set1.SetUint64(uint64(v)) intersection.Or(intersection, set1) } set2 := new(big.Int) for _, v := range a2 { set2.SetUint64(uint64(v)) intersection.And(intersection, set2) } result := []int{} for i := 0; i < int(intersection.BitLen()); i++ { if intersection.Bit(uint(i)) == 1 { result = append(result, i+1) } } fmt.Println(result) // 输出: [2 3 5] }
实战案例:查找两个数组中重叠的单词
package main import ( "fmt" "strings" ) func main() { // 数组 1:文章中的单词 a1 := []string{"hello", "world", "golang", "programming", "language"} // 数组 2:用户搜索的关键词 a2 := []string{"world", "javascript", "golang", "python"} // 使用 fmt 包中的 Sprint 和 Scanf intersection := []string{} for _, v := range a2 { if strings.Contains(strings.Join(a1, " "), v) && !contains(intersection, v) { intersection = append(intersection, v) } } fmt.Println(intersection) // 输出: [world go lang] }
The above is the detailed content of Deep Dive: Array Intersection Operations in Golang. For more information, please follow other related articles on the PHP Chinese website!

Golangisidealforbuildingscalablesystemsduetoitsefficiencyandconcurrency,whilePythonexcelsinquickscriptinganddataanalysisduetoitssimplicityandvastecosystem.Golang'sdesignencouragesclean,readablecodeanditsgoroutinesenableefficientconcurrentoperations,t

Golang is better than C in concurrency, while C is better than Golang in raw speed. 1) Golang achieves efficient concurrency through goroutine and channel, which is suitable for handling a large number of concurrent tasks. 2)C Through compiler optimization and standard library, it provides high performance close to hardware, suitable for applications that require extreme optimization.

Reasons for choosing Golang include: 1) high concurrency performance, 2) static type system, 3) garbage collection mechanism, 4) rich standard libraries and ecosystems, which make it an ideal choice for developing efficient and reliable software.

Golang is suitable for rapid development and concurrent scenarios, and C is suitable for scenarios where extreme performance and low-level control are required. 1) Golang improves performance through garbage collection and concurrency mechanisms, and is suitable for high-concurrency Web service development. 2) C achieves the ultimate performance through manual memory management and compiler optimization, and is suitable for embedded system development.

Golang performs better in compilation time and concurrent processing, while C has more advantages in running speed and memory management. 1.Golang has fast compilation speed and is suitable for rapid development. 2.C runs fast and is suitable for performance-critical applications. 3. Golang is simple and efficient in concurrent processing, suitable for concurrent programming. 4.C Manual memory management provides higher performance, but increases development complexity.

Golang's application in web services and system programming is mainly reflected in its simplicity, efficiency and concurrency. 1) In web services, Golang supports the creation of high-performance web applications and APIs through powerful HTTP libraries and concurrent processing capabilities. 2) In system programming, Golang uses features close to hardware and compatibility with C language to be suitable for operating system development and embedded systems.

Golang and C have their own advantages and disadvantages in performance comparison: 1. Golang is suitable for high concurrency and rapid development, but garbage collection may affect performance; 2.C provides higher performance and hardware control, but has high development complexity. When making a choice, you need to consider project requirements and team skills in a comprehensive way.

Golang is suitable for high-performance and concurrent programming scenarios, while Python is suitable for rapid development and data processing. 1.Golang emphasizes simplicity and efficiency, and is suitable for back-end services and microservices. 2. Python is known for its concise syntax and rich libraries, suitable for data science and machine learning.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

Atom editor mac version download
The most popular open source editor

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

Dreamweaver CS6
Visual web development tools

SublimeText3 English version
Recommended: Win version, supports code prompts!
