我有A，B，C，D四个BOOLEAN，只许用AND和OR和扩号，可以有多少种组合？

送交者: Enlighten 于 2008-04-29, 15:20:26:

If that is too difficult, you can start from A, B, C, i.e., 3 booleans.

Is there a systematic way of calculating it instead of exhaust all combinations one by one?

it depends on whether repetition is allowed, and also - steven (131 bytes) 2008-04-30, 03:20:38 (222466)
取决于你对“种”的定义 - 4ct (339 bytes) 2008-04-29, 21:05:39 (222402)
每个boolean只准用一次吗？ (无内容) - 雅诗 (0 bytes) 2008-04-29, 18:03:44 (222369)
两个BOOLEAN有4个：A，B，AandB，AorB. (无内容) - Enlighten (0 bytes) 2008-04-29, 15:23:37 (222328)
- 3个BOOLEANS的就难多了,但应该有规律 (无内容) - Enlighten (0 bytes) 2008-04-29, 15:29:22 (222331)
无聊。 (无内容) - Amsel (0 bytes) 2008-04-29, 15:22:10 (222327)