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=> 4.2-12:数字排列(数字不重复)
Problem1340--4.2-12:数字排列(数字不重复)
1340: 4.2-12:数字排列(数字不重复)
Time Limit:
1
Sec
Memory Limit:
128 MB
Submit:
0
Solved:
8
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Description
找出数字n的全部可能的排列(数字不可以重复)
Input
一个整数n
Output
整数1 2 3 ... n的排列(数字不重复)
Sample Input
Copy
2
Sample Output
Copy
1 2 2 1
HINT
1<= n <=7
Source/Category
算法
递归
DFS