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是否存在猜球必胜的情况呢?
source link: https://www.v2ex.com/t/463844
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分享发现 - @zmxnv123 - 假设 A，B 队比赛A 队胜，平，负的回报率分别是 a,b,c.投入积分分别为 x,y,z。a,b,c 除大于 1 外无其他限定条件。此时可以得到一个不等式组ax>x+y+zby>x+y+
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