biginteger problem done

Author: rampatra

src/com/hackerrank/algorithms/implementation/ExtraLongFactorials.java

@@ -0,0 +1,19 @@
+package com.hackerrank.algorithms.implementation;
+
+import java.math.BigInteger;
+import java.util.Scanner;
+
+/**
+ * Created by ramswaroop on 29/05/2016.
+ */
+public class ExtraLongFactorials {
+    public static void main(String[] args) {
+        Scanner in = new Scanner(System.in);
+        int n = in.nextInt();
+        BigInteger res = BigInteger.ONE;
+        for (int i = n; i > 0; i--) {
+            res = res.multiply(BigInteger.valueOf(i));
+        }
+        System.out.println(res);
+    }
+}