文件名称:C--100
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有1、2、3、4个数字，能组成多少个互不相同且无重复数字的三位数？都是多少？
1.程序分析：可填在百位、十位、个位的数字都是1、2、3、4。组成所有的排列后再去掉不满足条件的排列。
2.程序源代码：
-Numbers are 1,2,3,4, how many can be composed of distinct three-digit numbers with no repetition? Is how much? 1. Program Analysis: fill in the hundred, ten, a bit of the numbers are 1,2,3,4. Removed after the composition does not satisfy all the conditions of the arrangement of the arrangement. 2. Program source code:
1.程序分析：可填在百位、十位、个位的数字都是1、2、3、4。组成所有的排列后再去掉不满足条件的排列。
2.程序源代码：
-Numbers are 1,2,3,4, how many can be composed of distinct three-digit numbers with no repetition? Is how much? 1. Program Analysis: fill in the hundred, ten, a bit of the numbers are 1,2,3,4. Removed after the composition does not satisfy all the conditions of the arrangement of the arrangement. 2. Program source code:
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C--100.doc