solve problem 29

project_euler/lib/project_euler/problems/029.rb

@@ -0,0 +1,21 @@
+require 'project_euler'
+
+module ProjectEuler
+  class Problem29
+
+    def solve_for(n)
+      solutions = []
+      (2..n).each do |a|
+        (2..n).each do |b|
+          solutions << a**b
+        end
+      end
+      solutions.uniq.size
+    end
+
+    def solution
+      solve_for 100
+    end
+
+  end
+end

project_euler/spec/problems/029_spec.rb

@@ -0,0 +1,7 @@
+require 'spec_helper'
+require 'project_euler/problems/029'
+
+describe ProjectEuler::Problem29 do  
+  specify { subject.solve_for(5).should == 15 }
+  its(:solution) { should == 9183 }
+end