containsDuplicate 문제 풀이 추가

junzero741 · junzero741 · commit a0e762a4baab · 2026-03-02T11:08:52.000+09:00
diff --git a/contains-duplicate/junzero741.ts b/contains-duplicate/junzero741.ts
@@ -0,0 +1,4 @@
+function containsDuplicate(nums: number[]): boolean {
+    const uniqueNums = new Set<number>(nums);
+    return uniqueNums.size < nums.length
+};
