data-structure(i): add day 1

Signed-off-by: Matej Focko <mfocko@redhat.com>
2022-01-19 18:23:55 +01:00 · 2022-01-19 18:23:55 +01:00 · 9fa39e8873
commit 9fa39e8873
parent 275d28ec33
3 changed files with 56 additions and 0 deletions
--- a/problems/contains-duplicate.swift
+++ b/problems/contains-duplicate.swift
@ -1,12 +0,0 @@
-class Solution {
-    func containsDuplicate(_ nums: [Int]) -> Bool {
-        var encountered = Set<Int>()
-        for x in nums {
-            if encountered.contains(x) {
-                return true
-            }
-            encountered.insert(x)
-        }
-        return false
-    }
-}