Quiz https://www.hackerrank.com/contests/tkcon/challenges/6- AC code https://www.hackerrank.com/contests/tkcon/challenges/6-/submissions/code/1320248583 公式解説 https://drive.google.com/drive/folders/1nCXiOd4K1GxJVRazWKUg5cojlJZFRIE5 感想…

Quiz https://atcoder.jp/contests/joi2019yo/tasks/joi2019_yo_d AC code https://atcoder.jp/contests/joi2019yo/submissions/9864231 補足 公式解説 https://www.ioi-jp.org/joi/2018/2019-yo/2019-yo-t4-review.html これでなんとなく分かるのだが、実装…