Problem 1 (written in Ruby)
(1..1000).select{|n| n % 3 == 0 || n % 5 == 0}.inject(0){|r,i|r+i}
Problem:
http://odz.sakura.ne.jp/projecteuler/index.php?Problem%201
(1..1000).select{|n| n % 3 == 0 || n % 5 == 0}.inject(0){|r,i|r+i}
Problem:
http://odz.sakura.ne.jp/projecteuler/index.php?Problem%201