diff --git a/Leetcode/Last Stone Weight.java b/Leetcode/Last Stone Weight.java
new file mode 100644
index 00000000..9e3ff570
--- /dev/null
+++ b/Leetcode/Last Stone Weight.java	
@@ -0,0 +1,33 @@
+class Solution {
+    public int lastStoneWeight(int[] stones) {
+        
+        PriorityQueue<Integer> pq = new PriorityQueue<Integer>(Collections.reverseOrder());
+        
+        for(int i : stones){
+            pq.add(i);
+        }
+        
+        Iterator it = pq.iterator();
+        
+        while(it.hasNext()){
+            
+            if(pq.size() == 1){
+                return pq.peek();
+            }
+            
+            int a = pq.poll();
+            int b = pq.poll();
+            
+       
+            
+            if(a>b){
+                a = a-b;
+                pq.add(a);
+            }else{
+                b = b-a;
+                pq.add(b);
+            }
+        }
+        return 0;
+    }
+}