Question

How to remove odd frequency characters from a string in Go

Answer 1

package main

import (
	"fmt"
	"strings"
)

func removeOddFrequencyCharacters(s string) string {
	frequencyMap := make(map[rune]int)
	charray := []rune(s)

	// Count the frequency of each character
	for _, ch := range charray {
		frequencyMap[ch]++
	}

	// Build the result string excluding characters with odd frequencies
	var result strings.Builder
	for _, ch := range charray {
		if frequencyMap[ch]%2 == 0 {
			result.WriteRune(ch)
		}
	}

	return result.String()
}

func main() {
	s := "golang programming version 1.23"

	newString := removeOddFrequencyCharacters(s)

	fmt.Println(newString)
}



/*
run:

gaggammigi

*/

 

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