2020-01-19 01/18やったこと kenkoooo.hatenablog.com AtCoder E - Snuke Line Submission #9550850 - AtCoder Regular Contest 068 F - Xor Sum 3 Submission #9550587 - AtCoder Beginner Contest 141 E - Ball Coloring Submission #9551600 - AtCoder Regular Contest 073 E - Bichromization Submission #9587264 - Keyence Programming Contest 2020
