diff --git a/linear.cpp b/linear.cpp
index 8d3b663..21602d5 100644
--- a/linear.cpp
+++ b/linear.cpp
@@ -1,4 +1,5 @@
 #include<iostream>
+using namespace std;
 
 int main(){
     int number_of_rounds = 0;
@@ -8,4 +9,4 @@ int main(){
         j = i;
     }
     return 0;
-}
\ No newline at end of file
+}