{"categories":[],"width":"100%","blog_url":"https://www.utakata.work/","provider_name":"Hatena Blog","title":"AtCoder Beginner Contest #023 B - \u624b\u82b8\u738b","description":"\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3057\u305f int main(int argc, const char * argv[]){ int n; string s; cin >> n >> s; string ans = \"b\"; int i; for(i = 0; ans.length() < n; i++){ switch (i%3) { case 0: ans = \"a\" + ans + \"c\"; break; case 1: ans = \"c\" + ans + \"a\"; break; case 2: ans = \"b\" + ans + \"b\"; } } cout << (ans == s ? i : -1) <<\u2026","type":"rich","blog_title":"\u732b\u3067\u3082\u308f\u304b\u308bWeb\u958b\u767a\u30fb\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0","image_url":null,"published":"2015-05-19 08:45:08","version":"1.0","author_url":"https://blog.hatena.ne.jp/yoshiki_utakata/","url":"https://www.utakata.work/entry/2015/05/19/084508","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.utakata.work%2Fentry%2F2015%2F05%2F19%2F084508\" title=\"AtCoder Beginner Contest #023 B - \u624b\u82b8\u738b - \u732b\u3067\u3082\u308f\u304b\u308bWeb\u958b\u767a\u30fb\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","author_name":"yoshiki_utakata","height":"190"}