diff --git a/7 January  Pair with given sum in a sorted array b/7 January  Pair with given sum in a sorted array
new file mode 100644
index 0000000..9c4815d
--- /dev/null
+++ b/7 January  Pair with given sum in a sorted array	
@@ -0,0 +1,16 @@
+class Solution {
+  public:
+    int countPairs(vector<int> &arr, int target) {
+        // Complete the function
+        int count=0;
+        unordered_map<int,int>mp;
+        for(int i:arr){
+            if(mp.find(target-i)!=mp.end()){
+                count+=mp[target-i];
+            } 
+            mp[i]++;
+        }
+        
+        return count;
+    }
+};