[理工] 103 中央 資工 資演7
求各位大大幫助QQ
http://i.imgur.com/cg1qhpn.jpg
我怎樣樣都想不通為什麼是O(n)...
可能出現的subset不是有2^n個嗎?
這樣慢慢試不是很久?
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01/26 19:14, , 1F
01/26 19:14, 1F
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01/26 19:21, , 2F
01/26 19:21, 2F
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01/26 19:25, , 3F
01/26 19:25, 3F
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01/26 19:30, , 4F
01/26 19:30, 4F
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01/26 19:30, , 5F
01/26 19:30, 5F
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01/26 19:30, , 6F
01/26 19:30, 6F
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01/26 19:30, , 7F
01/26 19:30, 7F
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01/26 19:35, , 8F
01/26 19:35, 8F
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01/26 19:35, , 9F
01/26 19:35, 9F
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01/26 19:36, , 10F
01/26 19:36, 10F
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01/26 19:37, , 11F
01/26 19:37, 11F
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01/26 19:37, , 12F
01/26 19:37, 12F
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01/26 19:39, , 13F
01/26 19:39, 13F
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01/26 19:40, , 14F
01/26 19:40, 14F
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01/26 20:11, , 15F
01/26 20:11, 15F
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01/26 20:12, , 16F
01/26 20:12, 16F