2021年5月21日
Codeforces Round #721 (Div. 2)
摘要： Codeforces Round #721 (Div. 2) A - And Then There Were K 打表找规律 int main() { IOS; VI a(1); while (a.back() < 1e9) { ll cur = a.back() * 2 + 1; if (cur 阅读全文
posted @ 2021-05-21 08:58 洛绫璃 阅读(80) 评论(0) 推荐(0) 编辑