[理工] [離散] 函數 100 元智資工
我目前在讀學長給得去年的黃子嘉離散題庫
看到以下這題函數有點不懂 想請大家幫忙思考一下
P. 2-54 100 元智資工
2. Let a(i,j) ∈ {0,1} for all i ∈ {1,2,3,4} and j ∈ {1,2,...,1000}.
1000 4
If Σa(i,j) < 250 holds for all i ∈ {1,2,3,4}, then min Σa(i,j) = ?
j=1 j∈{1,2,...,1000} j=1
答案是給
4
min Σa(i,j) =0
j∈{1,2,...,1000} j=1
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01/02 00:19, , 1F
01/02 00:19, 1F
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01/02 00:20, , 2F
01/02 00:20, 2F
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01/02 00:20, , 3F
01/02 00:20, 3F
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01/02 00:21, , 4F
01/02 00:21, 4F
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01/06 03:16, , 5F
01/06 03:16, 5F