Write a Golang program to find the frequency of each element in an array

Examples

Input Array = [1, 3, 4, 3, 2, 3, 4, 0, 2]

Approach to solve this problem

• Step 1: Define a method that accepts an array.
• Step 2: Define a map, where key would be the array’s elements and the starting value is 0.
• Step 3: Start iterating the input array. If an element is present in the map, then increment the count.
• Step 4: If the element is not present in the map, then store in map and make its value 1.

Program

Live Demo

package main import (    "fmt" ) func findFrequencyOfArray(arr []int){    frequency := make(map[int]int)    for _, item := range arr{       if frequency[item] == 0{          frequency[item] = 1       } else {          frequency[item]++       }    }    for item, count := range frequency{       fmt.Printf("%d occurring %d times.\n", item, count)    } } func main(){    findFrequencyOfArray([]int{2, 2, 5, 1, 3, 5, 0}) }

Output

2 occurring 2 times. 5 occurring 2 times. 1 occurring 1 times. 3 occurring 1 times. 0 occurring 1 times.