a_kawashiro https://blog.hatena.ne.jp/a_kawashiro/ a_kawashiroのブログ https://a-kawashiro.hatenablog.com/ topcoder 動物的直感でAC。 #include <algorithm> #include <cstdio> #include <cstring> #include <utility> #include <vector> using namespace std; class IntervalSubsets { public: int n; int cache[55]; vector<pair<int,int> > interval; int rec(int p) { int &r=cache[p]; if(r!=-1) return r; else { r=0; int ss=interval[p].se… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fa-kawashiro.hatenablog.com%2Fentry%2F20110423%2F1303545683" title="SRM387 div1 medium - a_kawashiroのブログ" 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 2011-04-23 17:01:23 rich https://a-kawashiro.hatenablog.com/entry/20110423/1303545683 1.0 100%