$$
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Self-defined math definitions
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Math symbol commands
\newcommand{\intd}{\,{\rm d}} % Symbol 'd' used in integration, such as 'dx'
\newcommand{\diff}{{\rm d}} % Symbol 'd' used in differentiation
...
$$
摘要：
Educational Codeforces Round 47 (Rated for Div. 2) A. Game Shopping 暴力模拟即可 #include <bits/stdc++.h> using namespace std; #define int long long #defi 阅读全文
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