add print

src/radix_sort_seq.cpp

@@ -61,7 +61,7 @@ void radixsort(int arr[], int n)
 void print(int arr[], int n) 
 { 
     for (int i = 0; i < n; i++) 
-        cout << arr[i] << " "; 
+        cout << arr[i] << "\n"; 
 } 
   
 void rng(int* arr,int n){