peroon https://blog.hatena.ne.jp/peroon/ perogram https://perogram.hateblo.jp/ code Quiz https://atcoder.jp/contests/abc039/tasks/abc039_d AC Code https://atcoder.jp/contests/abc039/submissions/8144631 void paint(ll i, ll j, VV& G, ll v){ ll H = G.size(); ll W = G[0].size(); // 近傍8も塗る FOR(dx, -1, 2){ FOR(dy, -1, 2){ ll tx = j + dx; ll ty = i + dy; if(0<=tx && tx<W && 0<=ty && ty<H)… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fperogram.hateblo.jp%2Fentry%2F2019%2F10%2F27%2F191945" title="D - 画像処理高橋君 ～2次元vectorを塗る paint～ - 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/20191027/20191027191931.png Hatena Blog https://hatena.blog 2019-10-27 19:19:45 rich https://perogram.hateblo.jp/entry/2019/10/27/191945 1.0 100%