moistx https://blog.hatena.ne.jp/moistx/ Logfiles https://logfiles.hatenablog.com/ SRM 解法 先にstringの階層構造をvector化すると扱いやすくなる。 class RelativePath { public: vector<string> make(string str) { int N = str.size(); for(int i=0; i<N; i++) { if(str[i] == '/') { str[i] = ' '; } } stringstream ss(str); vector<string> ret; ret.push_back("ROOT"); while(ss >> str) ret.push_back(str); return ret; } st… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Flogfiles.hatenablog.com%2Fentry%2F20140817%2F1408257266" title="SRM405 Div1Easy RelativePath - Logfiles" 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 2014-08-17 15:34:26 rich https://logfiles.hatenablog.com/entry/20140817/1408257266 1.0 100%