Merge remote-tracking branch 'upstream/master'

1 files changed, 24 insertions, 0 deletions

diff --git a/challenge-112/abigail/java/ch-2.java b/challenge-112/abigail/java/ch-2.java
new file mode 100644
index 0000000000..b1db2db642
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+++ b/challenge-112/abigail/java/ch-2.java
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+//
+// See ../README.md
+//
+
+//
+// Run as: ln ch-2.java ch2.java; javac ch2.java; java ch2 < input-file
+//
+
+import java.util.Scanner;
+import java.lang.Math;
+
+
+public class ch2 {
+    public static void main (String [] args) {
+        final double SQRT5 = Math . sqrt (5);
+        final double PHI   = (1 + SQRT5) / 2;
+        Scanner scanner = new Scanner (System . in);
+        while (scanner . hasNextInt ()) {
+            System . out . printf ("%d\n",
+                (int) Math . round (
+                      Math . pow (PHI, scanner . nextInt () + 1) / SQRT5));
+        }
+    }
+}