a_kawashiro https://blog.hatena.ne.jp/a_kawashiro/ a_kawashiroのブログ https://a-kawashiro.hatenablog.com/ topcoder #include <algorithm> #include <string> #include <vector> typedef long long LL; using namespace std; class PrefixFreeSubsets { public: LL cantPrefFreeSubsets(vector <string> words) { int n=words.size(); LL ans[60]; ans[n]=1; sort(words.begin(),words.end()); for(int i=n-1;0<=i;i--) { int j=i+1; while(… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fa-kawashiro.hatenablog.com%2Fentry%2F20110421%2F1303391776" title="SRM330 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 2011-04-21 22:16:16 rich https://a-kawashiro.hatenablog.com/entry/20110421/1303391776 1.0 100%