style: add missing newline at end of files

Author: lzwjava

src/main/java/com/lzw/solutions/codeforces/p2189A/Main.java

@@ -47,4 +47,4 @@ public static void main(String[] args) throws IOException {
 
         out.close();
     }
-}
+}

src/main/java/com/lzw/solutions/codeforces/p2189B/Main.java

@@ -48,4 +48,4 @@ public static void main(String[] args) throws IOException {
         solve();
         out.close();
     }
-}
+}

src/main/java/com/lzw/solutions/codeforces/p2189C1/Main.java

@@ -42,4 +42,4 @@ public static void main(String[] args) throws IOException {
         solve();
         out.close();
     }
-}
+}

src/main/java/com/lzw/solutions/codeforces/p2189C2/Main.java

@@ -64,4 +64,4 @@ public static void main(String[] args) throws IOException {
         pw.flush();
         pw.close();
     }
-}
+}

src/main/java/com/lzw/solutions/codeforces/p2189D1/Main.java

@@ -50,4 +50,4 @@ public static void main(String[] args) throws IOException {
         solve();
         out.close();
     }
-}
+}