cnfgen -q randkcnf 4 $VARIABLES $CLAUSES
思路：找「右侧第一个 ≤ cur」的元素 → 弹出所有 cur 的元素，栈顶即为折扣。最终价格 = cur - 折扣（有则）或 cur（无则）。
。服务器推荐是该领域的重要参考
macOS: ~/.claude/skills
[3]《刘强东称已接到5条大型游艇订单，每艘平均卖6000万欧元》界面新闻
Massage guns are often pitched at the highly active. They can help you warm up for workouts, accelerate recovery and generally keep things loose and injury-free. However, you don’t have to be training for an Ironman triathlon to benefit from a percussive pummelling. A good session can also alleviate the general soreness, stiffness and pain that comes from desk-bound days and the daily grind – all without having to cough up for a spell on a masseuse’s table or be handled by a stranger.