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Amit-S-Sahu · Oct 23, 2024 · db0f465 · db0f465
1 parent 184a084
commit db0f465
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/0217-contains-duplicate/0217-contains-duplicate.java b/0217-contains-duplicate/0217-contains-duplicate.java
@@ -0,0 +1,10 @@
+class Solution {
+    public boolean containsDuplicate(int[] nums) {
+        HashSet<Integer> set = new HashSet<>();
+        for (int num : nums) {
+            if (set.contains(num)) return true;
+            set.add(num);
+        }
+        return false;
+    }
+}