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Re:为什么可以用d/t排序?有人能证明一下么?In Reply To:为什么可以用d/t排序?有人能证明一下么? Posted by:Bzin at 2008-10-13 21:25:15 从N头牛中拿出两头牛A，B考虑 首先，A先，或B先对其余的牛没有任何影响，N－2头牛造成的损失一样 那么要尽量减少损失，则要取2×TA×DB（赶A的情况）， 2×TB×DA（赶B的情况）中的较少者 两边同除以2×TA×TB得DB/TB DA/TA.... Followed by:
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