peroon https://blog.hatena.ne.jp/peroon/ perogram https://perogram.hateblo.jp/ Quiz https://atcoder.jp/contests/abc119/tasks/abc119_c AC Code https://atcoder.jp/contests/abc119/submissions/8134185 void dfs(VI V){ if(SZ(V)==N){ calc(V); return; } rep(i, 4){ V.push_back(i); dfs(V); V.pop_back(); } } 解法 各竹を0, 1, 2, 3のどれかに割り当てる 0 : 左の竹 1 : 中央の竹 2 : 右の竹 3 : 使わない竹 全パターンを試すためにdfsを使った… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fperogram.hateblo.jp%2Fentry%2F2019%2F10%2F27%2F041158" title="C - Synthetic Kadomatsu ～dfs 全探索～ - perogram" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> https://cdn-ak.f.st-hatena.com/images/fotolife/p/peroon/20191027/20191027041151.png Hatena Blog https://hatena.blog 2019-10-27 04:11:58 rich https://perogram.hateblo.jp/entry/2019/10/27/041158 1.0 100%