BEGIN-3

hdvsyu · Jan 19, 2016 · cfea18d · cfea18d
1 parent 7a52c54
commit cfea18d
Showing 1 changed file with 18 additions and 0 deletions.
diff --git a/BEGIN/begin3/Main.java b/BEGIN/begin3/Main.java
@@ -0,0 +1,18 @@
+package begin3;
+
+import java.util.Scanner;
+
+public class Main {
+
+	public static void main(String[] args) {
+
+		final double p = 3.14159265358979323;
+		Scanner in = new Scanner(System.in);
+		int r = in.nextInt();
+		in.close();
+
+		System.out.printf("%.7f", p * r * r);
+
+	}
+
+}