Add .ruby-version
Add Rakefile and TestJudge for problem tests
Add sample
Solve 1000
Reduce code (Wrong)
Change code for Ruby 1.8.7
Reduce code (Wrong)
Fix the constant for problem server
Add sample
Solve 1001
Add sample
Solve 1002 (Compile Error)
Modify spaces for syntax (Wrong)
Add missed conditions
Reduce code (Runtime Error)
Add a space for syntax (Runtime Error)
Change '|' operators to '||' to fix error (Wrong)
Fix the wrong condition
Add sample
Solve 1003 (Timeout)