BestCoder Round #11 题解集合

1001.Alice and Bob

签到题*1，只要x * 2 == n && y * 2 == m就满足条件。

1 var
2   m, n, x, y : int64;
3   
4 begin
5   while not eof do begin
6     readln(m, n, x, y);
7     if (m = 2 * x) and (n = 2 * y) then writeln('YES') else writeln('NO');
8   end;
9 end.

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