diff --git a/UniqueStringUsingBitVector.java b/UniqueStringUsingBitVector.java
index 03ff632..7092780 100644
--- a/UniqueStringUsingBitVector.java
+++ b/UniqueStringUsingBitVector.java
@@ -1,6 +1,3 @@
-import java.util.HashSet;
-import java.util.Set;
-
 public class UniqueStringUsingBitVector {
 	
 	public  boolean isUnique(String input) {