add shortened solution of contains-duplicate

Ujoonnee · Ujoonnee · commit 4e942db3148e · 2025-03-31T18:15:41.000+09:00
diff --git a/contains-duplicate/Ujoonnee.java b/contains-duplicate/Ujoonnee.java
@@ -13,4 +13,12 @@ public boolean containsDuplicate(int[] nums) {
         }
         return false;
     }
-}
+}
+
+/*
+class Solution {
+    public boolean containsDuplicate(int[] nums) {
+        return Arrays.stream(nums).distinct().count() != nums.length;
+    }
+}
+*/

Original file line number	Diff line number	Diff line change
`@@ -13,4 +13,12 @@ public boolean containsDuplicate(int[] nums) {`
`13`	`13`	`}`
`14`	`14`	`return false;`
`15`	`15`	`}`
`16`		`-}`
	`16`	`+}`
	`17`	`+`
	`18`	`+/*`
	`19`	`+class Solution {`
	`20`	`+ public boolean containsDuplicate(int[] nums) {`
	`21`	`+ return Arrays.stream(nums).distinct().count() != nums.length;`
	`22`	`+ }`
	`23`	`+}`
	`24`	`+*/`