标签：target targe get ref http ble https 内容 等于
HDU P2177 https://vjudge.net/problem/HDU-2177
内容：必败态（特殊态）为两个数中较小数等于两数之差乘以（sqrt(5)+1)/2;
威佐夫博弈
原文地址：https://www.cnblogs.com/xcsj/p/12238385.html
