From eadde838bab5d9da4bb8dc6fc9bb5d628e81572a Mon Sep 17 00:00:00 2001
From: Jesse Luehrs <doy@tozt.net>
Date: Sat, 16 May 2009 12:43:24 -0500
Subject: solution for 56

---
 056.bc | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 056.bc

diff --git a/056.bc b/056.bc
new file mode 100644
index 0000000..835e6cd
--- /dev/null
+++ b/056.bc
@@ -0,0 +1,23 @@
+#!/usr/bin/bc
+
+define digit_sum (n) {
+    scale = 0
+    sum = 0
+    while (n > 0) {
+        sum += (n % 10)
+        n = n / 10
+    }
+    scale = 20
+    return sum
+}
+
+max = 0
+for (i = 1; i <= 100; i++) {
+    for (j = 1; j <= 100; j++) {
+        s = digit_sum(i^j)
+        if (s > max) {
+            max = s
+        }
+    }
+}
+max
-- 
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