请教各位大虾, 有9个数字, 3 3 3 3 3 1 1 0 0 和5个* * * * *,总共14个位置
通过排列组合, 能分成多少组?
例如可以组合成: 333331100*****, 3*33331100****,3*****33331100,33***3331100**
请教各位大虾, 有9个数字, 3 3 3 3 3 1 1 0 0 和5个* * * * *,总共14个位置
通过排列组合, 能分成多少组?
例如可以组合成: 333331100*****, 3*33331100****,3*****33331100,33***3331100**
•
14!/(5!*2!*2!*5!)
-jinjing-
♀
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03/13/2012 postreply
11:46:14
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