The following is my code where I need to Print the number of occurances of each values in an array.
package main
import "fmt"
func main(){
//Initialize an array
inputArray := []int{10,20,30,56,67,90,10,20}
printUniqueValue(inputArray)
}
func printUniqueValue( arr []int){
//Create a dictionary of values for each element
var dict map[int]int
count := 0
for _ , num := range arr {
dict[num] = count+1
}
fmt.Println(dict)
}
But I couldn't construct the dictionary as I wish like , dict[10] should have value 2. Sample Expected Output :
dict[10] = 2
dict[20] = 2
dict[30] = 1
Error I got: panic: assignment to entry in nil map
You need to initialize dict with a non-nil map; one way would be with var dict = make(map[int]int).
Once you fix that, you will also need to deal with the logic error in dict[num] = count+1, where the count of that value is set to 1 (count is always 0) instead of one more than the previous value.
package main
import "fmt"
func main(){
//Initialize an array
inputArray := []int{10,20,30,56,67,90,10,20}
printUniqueValue(inputArray)
}
func printUniqueValue( arr []int){
//Create a dictionary of values for each element
dict:= make(map[int]int)
for _ , num := range arr {
dict[num] = dict[num]+1
}
fmt.Println(dict)
}
This prints map[67:1 90:1 10:2 20:2 30:1 56:1]