diff --git a/competitive/xor_of_binary_strings.cpp b/competitive/xor_of_binary_strings.cpp
new file mode 100644
index 0000000..6ed8910
--- /dev/null
+++ b/competitive/xor_of_binary_strings.cpp
@@ -0,0 +1,18 @@
+    #include<bits/stdc++.h>
+    using namespace std;
+    int main(){
+    int t;
+    string a,b;
+    cin>>t;
+    while(t--){
+        cin>>a>>b;
+        string res="";
+        for(int i=0;i<a.length();i++)
+        {
+            res+=to_string(int(a[i])^int(b[i]));
+        }
+        cout<<res;
+        
+    }
+    return 0;
+    }