行码棋:CSDN认证博客专家
博客地址:https://blog.csdn.net/qq_50285142
行码棋:CSDN认证博客专家
博客地址:https://blog.csdn.net/qq_50285142
Codeforces Round #721 (Div. 2)A,B1,C题解
Codeforces Round #700 (Div. 2) B(简单思维)
Educational Codeforces Round 115 (Rated for Div. 2) A-D