From b79c0197d3d177b4f080a56685ccb150cb19c363 Mon Sep 17 00:00:00 2001
From: Hritwika Sarkar <72162152+Hrit20@users.noreply.github.com>
Date: Fri, 29 Oct 2021 23:32:52 +0530
Subject: [PATCH 1/2] 3Sum Java problem

---
 3 Sum/3Sum.java | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 3 Sum/3Sum.java

diff --git a/3 Sum/3Sum.java b/3 Sum/3Sum.java
new file mode 100644
index 0000000..c7d88a5
--- /dev/null
+++ b/3 Sum/3Sum.java	
@@ -0,0 +1,19 @@
+class Solution {
+    public List<List<Integer>> threeSum(int[] nums) {
+        Set<List<Integer>> res  = new HashSet<>();
+        if(nums.length==0) return new ArrayList<>(res);
+        Arrays.sort(nums);
+        for(int i=0; i<nums.length-2;i++){
+            int j =i+1;
+           int  k = nums.length-1;
+            while(j<k){
+                int sum = nums[i]+nums[j]+nums[k];
+                if(sum==0)res.add(Arrays.asList(nums[i],nums[j++],nums[k--]));
+                else if ( sum >0) k--;
+                else if (sum<0) j++;
+            }
+
+        }
+        return new ArrayList<>(res);
+    }
+}
\ No newline at end of file

From f93b7279ca27c4a4354014a2575c4907d860888c Mon Sep 17 00:00:00 2001
From: Hritwika Sarkar <72162152+Hrit20@users.noreply.github.com>
Date: Sun, 31 Oct 2021 00:21:32 +0530
Subject: [PATCH 2/2] JavaSolution3Sum.java

---
 3 Sum/{3Sum.java => JavaSolution3Sum.java} | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 rename 3 Sum/{3Sum.java => JavaSolution3Sum.java} (96%)

diff --git a/3 Sum/3Sum.java b/3 Sum/JavaSolution3Sum.java
similarity index 96%
rename from 3 Sum/3Sum.java
rename to 3 Sum/JavaSolution3Sum.java
index c7d88a5..6ee3cf1 100644
--- a/3 Sum/3Sum.java	
+++ b/3 Sum/JavaSolution3Sum.java	
@@ -16,4 +16,4 @@ public List<List<Integer>> threeSum(int[] nums) {
         }
         return new ArrayList<>(res);
     }
-}
\ No newline at end of file
+}