[hyejj19] WEEK 01 solutions #2368

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Merged

hyejj19 merged 7 commits into DaleStudy:main from hyejj19:main

Mar 7, 2026

contains-duplicate/hyejj19.ts

-Original file line number
+Diff line change
@@ -0,0 +1,3 @@
+    function containsDuplicate(nums: number[]): boolean {
+      return new Set(nums).size !== nums.length;
+    }