diff --git a/main.cpp b/main.cpp
index 5411e7a..a74654c 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,9 +1,9 @@
 #include <iostream>
 #include <cmath>
 
-using std::endl;
-using std::cin;
-using std::cout;
+using endl;
+using cin;
+using cout;
 
 int main()
 {
@@ -16,7 +16,11 @@ int main()
     cout << "Addition: " << x + y << endl;
     cout << "Subtraction: " << x - y << endl;
     cout << "Multiplication: " << x * y << endl;
-    cout << "Division: " << x / y << endl;
+    if (y == 0) {
+        cout << "Division: Dividing by 0 not a number (division by zero)" << endl;
+    } else {
+        cout << "Division: " << x / y << endl;
+    }
     cout << "Remainder: " << x % y << endl;
     cout << "Square Root: " << sqrt(x) << endl;
     cout << "Square: " << pow(x, y) << endl;