Question

How to get intersection of two strings in Go

Answer 1

package main

import (
	"fmt"
)

func stringIntersection(s1, s2 string) string {
	// Use a map to track characters in the first string
	charMap := make(map[rune]bool)
	for _, char := range s1 {
		charMap[char] = true
	}

	// Find common characters in the second string
	intersection := ""
	for _, char := range s2 {
		if charMap[char] {
			intersection += string(char)
			// Remove the character to avoid duplicates
			delete(charMap, char)
		}
	}

	return intersection
}

func main() {
	str1 := "php"
	str2 := "python"
	
	result := stringIntersection(str1, str2)
	
	fmt.Println("Intersection:", result)
}



/*
run:

Intersection: ph

*/

 

70+ SQL courses for beginners and professionals