有没有好办法?

来源: 2010-10-11 07:55:08 [旧帖] [给我悄悄话] 本文已被阅读:

The integers a,b,c,d satisfy a>b>c>d and a+b+c+d=2048 and a^2-b^2+c^2-d^2=2048. find the smallest possible value of a.