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Four cards can be arranged by the kind and number into a new sequence, such as 1, 2, 3, 4. For example, 2S, 3C, 5C, 8H can be re-arranged 1 (2S), 2 (8H), 3(5C), 4(3C). There are 24 ways of arrangements for the four cards. Total 4+13 cases need to be distinglished. So if you set a arrangement metrix previously, you can use 1, 2, 3, 4 to tell a #5 card. |
是否是说,还给C的那张一定不是随机的,是吗? |
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