Contains Duplicate

Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct.

Solution in Go

func containsDuplicate(nums []int) bool {
    set := make(map[int]struct{})
    
    for _, n := range nums {
        _, contains := set[n]
        if contains {
            return true
        }
        
        set[n] = struct{}{}
    }
    
    return false
}

Get updates via email 👈

Get notified once/twice per month when new articles are published.

Copyright © 2022 TheDeveloperCafe.
The Go gopher was designed by Renee French.