problem 6

lilaboc · lilaboc · commit b39415148162 · 2014-03-25T12:16:24.000+02:00
diff --git a/6.rb b/6.rb
@@ -0,0 +1,8 @@
+a = 0
+b = 0
+1.upto(100) do |x|
+  a += x * x
+  b += x
+end
+p b * b - a
+
