はてなブックマーク - Advent of Optics: Day 1 https://b.hatena.ne.jp/entry/s/chrispenner.ca/posts/advent-of-optics-01 Since I'm releasing a book on practical lenses and optics later this month I thought it would be fun to do a few of this year's Advent of Code puzzles using optics as much as possible! I'm not sure... sakito0902 https://b.hatena.ne.jp/sakito0902/20191208#bookmark-4678041549551364386 2019-12-08T12:26:23Z Haskell HotEntry プログラミング Hiro_Matsuno https://b.hatena.ne.jp/Hiro_Matsuno/20191208#bookmark-4678041549551364386 2019-12-08T08:53:21Z u_wot_m8 https://b.hatena.ne.jp/u_wot_m8/20191205#bookmark-4678041549551364386 2019-12-04T22:37:22Z Haskell lens xef https://b.hatena.ne.jp/xef/20191201#bookmark-4678041549551364386 2019-12-01T12:26:50Z Haskell Lens