How to find Union of Two Sets in Go - Step by Step Examples



How to find Union of Two Sets in Go ?

Answer

In Go, you can find the union of two sets using maps.



✐ Examples

1 Union of Two Sets using Maps

In this example,

  1. We create two maps representing sets named set1 and set2.
  2. We iterate over the keys of set2 and add them to set1.

Go Program

package main
import "fmt"

func main() {
    set1 := map[int]bool{1: true, 2: true, 3: true}
    set2 := map[int]bool{3: true, 4: true, 5: true}
    for k := range set2 {
        set1[k] = true
    }
    fmt.Println(set1)
}

Output

map[1:true 2:true 3:true 4:true 5:true]

2 Union of Two Sets using Function

In this example,

  1. We define a function named union that takes two map arguments representing sets.
  2. We iterate over the keys of the second set and add them to the first set.
  3. We return the updated first set.

Go Program

package main
import "fmt"

func union(set1, set2 map[int]bool) map[int]bool {
    for k := range set2 {
        set1[k] = true
    }
    return set1
}

func main() {
    set1 := map[int]bool{1: true, 2: true, 3: true}
    set2 := map[int]bool{3: true, 4: true, 5: true}
    result := union(set1, set2)
    fmt.Println(result)
}

Output

map[1:true 2:true 3:true 4:true 5:true]

Summary

In this tutorial, we learned How to find Union of Two Sets in Go language with well detailed examples.




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