peroon https://blog.hatena.ne.jp/peroon/ perogram https://perogram.hateblo.jp/ 1500 Quiz https://codeforces.com/contest/1250/problem/L AC https://codeforces.com/contest/1250/submission/88911821 解説 editorialがないので書いておく 「3つのグループのうちの最大サイズはvに収まるか？」という判定関数を書いて二分探索 // for codeforces void solve(){ ll a,b,c;cin>>a>>b>>c; if(a<c) swap(a,c); ll right = max({a,b,c}); // can ll left = 0; // can… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fperogram.hateblo.jp%2Fentry%2F2020%2F08%2F05%2F121021" title="L. Divide The Students - perogram" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2020-08-05 12:10:21 rich https://perogram.hateblo.jp/entry/2020/08/05/121021 1.0 100%