C程序的学习300例【程序1】

题目：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。

-【 Procedure 1 】

Topic:1,2,3 and 4　piece words, can constitute how many with each other not same and three number that have no repetition numeral?Are all how much?

1.Procedure analysis:Can fill at 100 are all 1,2,3 and 4.Throw away again the conditional alignment of dissatisfied foot after constituting all alignments.