infoMore than 5 years have passed since last update.@DrqYuto(みなと @Prologの鬼!?)Ruby-1を得る方法Ruby0Posted at 2018-10-08 ruby puts(~0) # =>-1 0Go to list of users who liked0comment0Go to list of commentsRegister as a new user and use Qiita more convenientlyYou get articles that match your needsYou can efficiently read back useful informationYou can use dark themeWhat you can do with signing upSign upLogin