Array # 7 : 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.

containsDuplicate.go

func containsDuplicate(nums []int) bool {
    
    for i:= 0 ; i < len(nums) ; i++ {
        n := nums[i]
        for j:= 0; j < len(nums) ; j++ {
            if j != i && nums[j] == n {
                return true
            }
        }
    }
    
    return false
        
}