{"published":"2020-05-21 21:12:03","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fguutare.hatenadiary.com%2Fentry%2F2020%2F05%2F21%2F211203\" title=\"Atcoder Beginners Contest(A. Fifty-Fifty / B. Ordinary Number / C. Divide the Problems) - De.HP\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"De.HP","author_name":"guux","author_url":"https://blog.hatena.ne.jp/guux/","categories":[],"version":"1.0","type":"rich","image_url":null,"provider_url":"https://hatena.blog","description":"\u89e3\u7b54 A. Fifty-Fifty atcoder.jpmap \u3067\u6587\u5b57\u306e\u6570\u3092\u6570\u3048\u305f\u3002map \u306e\u30b5\u30a4\u30ba\u3068\u4e00\u3064\u306e\u8981\u7d20\u306e\u6570\u304c 2 \u3067\u3042\u308c\u3070\u3001\"Yes\" \u306b\u306a\u308a\u307e\u3059\u3002 #include<bits/stdc++.h> using namespace std; int main(){ char c; map<char, int> S; for(int i = 0; i < 4; i++){ cin >> c; S[c]++; } if(S.size() == 2 && S[c] == 2){ cout << \"Yes\" << endl; return 0; } cout << \"No\" << endl; \u2026","width":"100%","provider_name":"Hatena Blog","title":"Atcoder Beginners Contest(A. Fifty-Fifty / B. Ordinary Number / C. Divide the Problems)","url":"https://guutare.hatenadiary.com/entry/2020/05/21/211203","blog_url":"https://guutare.hatenadiary.com/","height":"190"}