알고리즘 3일차

문제 출처: https://leetcode.com/problems/contains-duplicate/

func containsDuplicate(_ nums: [Int]) -> Bool {
    var result = Bool()
    for i in 0..<nums.count {
    	if nums.firstIndex(of: nums[i]) == nums.lastIndex(of: nums[i]) {
            result = false
        } else {
            result = true
        }
    }
    return result
}