diff --git a/c++ code for maximum subarray sum b/c++ code for maximum subarray sum
new file mode 100644
index 00000000..032870cc
--- /dev/null
+++ b/c++ code for maximum subarray sum	
@@ -0,0 +1,18 @@
+int maxSubArray(vector<int>& nums) {
+        int l=nums.size();
+        int max=INT_MIN;
+        int sum=0;
+            
+        for(int i=0;i<l;i++){
+            
+             sum=sum+nums[i];
+                if(sum>max){
+                    max=sum;
+                }
+               if(sum<0){
+                    sum=0;
+                }
+        
+        }
+        return max;
+    }